annex3 contents 印刷用data sheet of permeability test (falling head permeability test) date 02/...

The Project for Capacity Development of Jakarta Comprehensive Flood Management in IndonesiaAnnex-3 Runoff Control

ANNEX


Annex- 1

Result of In-situ Permeability Test


- 1 -

Table 1-1 №1 result of test（Constant head test）(1)

Survey point

elapsedtime

Quantityof

infiltration

accumulatingtotalQuantit

f(min) (L/min) (L/min)

0

0

1 4.0 4.0

2 4.0 4.0

3 3.5 3.5

4 2.5 2.5

5 3.0 3.0 97cm

6 3.4 3.4 70cm

7 2.6 2.6 89cm

8 3.2 3.2

9 3.0 3.0

10 2.7 2.7

15 14.0 2.8

20 13.6 2.7

25 13.0 2.6

30 12.0 2.4

35 12.0 2.4

40 12.3 2.5

45 12.1 2.4

50 12.5 2.5

55 12.5 2.5

60 12.0 2.4

temperature(℃)

water temperature(℃)

Test time

basal plain

Total Quantity of flooding(L)

Final Quantity of infiltration (L/min)

Quantity of infiltration Examination start 60minutes (L/min)

Initial value

Quantity of initial

flooding and an

elapsed time

Remarks

permeability test

start

Condition ofland-use

Basin

①－②Quantity

ofinfiltration (L)

The start time

No.1

BBWS Ciliwung - Cisadane

①InitialQuantity

ofwater(L)

②EndQuantity

ofwater(L)

02/ Nov / 2012 /　Weather：Sunny

（ parking space ）

9:23

Adress

Facilities form

Facilities size(m)

～The end time

Date

present situati

Digging

Observation

Remarks Column

Finished

Data Sheet of Permeability test (constant head permeability test)

Check of photo

Digging depth and geological condition ofexamination well

35 ㎝

observation well

11:23 Examination timeTotal

sketch map


- 2 -


Survey point

elapsedtime

Quantityof

infiltration



0

0

60

70 24.0 2.4

80 24.1 2.4

90 23.6 2.4

100 23.6 2.4 97cm

110 23.2 2.3 70cm

120 23.5 2.4 89cm

300.9

2.35

2.40

temperature(℃)


Test time (min) 120

Remarks Column




basal plain

Initial value observation well

Quantity of initial

flooding and an

elapsed time35 ㎝

permeability test

start

①InitialQuantity

ofwater(L)

②EndQuantity

ofwater(L)

①－②Quantity

ofinfiltration (L)

Remarks


The start time 9:23 ～The end time 11:23 Examination timeTotal

Facilities form

Facilities size(m)

Digging

No.1 Observation

Adress BBWS Ciliwung - Cisadane Finished


Date 02/ Nov / 2012 /　Weather：Sunny sketch map Check of photo


（ parking space ） present situati

Basin


- 3 -


Survey point

elapsedtime

Quantityof

infiltration



0

0

1 4.00 4.0

2 6.00 6.0

3 7.50 7.5

4 4.00 4.0

5 3.80 3.8 95cm

6 3.90 3.9 70cm

7 3.90 3.9 84cm

8 3.90 3.9

9 3.90 3.9

10 3.95 4.0

11 3.95 4.0

12 3.95 4.0

13 3.90 3.9

14 3.90 3.9

15 3.90 3.9

16 3.85 3.9

17 3.90 3.9

18 3.85 3.9

19 3.90 3.9

20 3.86 3.9

temperature(℃)


Test time

Remarks Column




basal plain


Quantity of initial

flooding and an

elapsed time35 ㎝

permeability test

start

①InitialQuantity

ofwater(L)

②EndQuantity

ofwater(L)

①－②Quantity

ofinfiltration (L)

Remarks



Facilities form

Facilities size(m)

Digging

No.1 Observation






Basin


- 4 -

Table 1-4 №2 result of test（Constant head test） (2)

Survey point

elapsedtime

Quantityof

infiltration



0

20

21 3.20 3.2

22 3.00 3.0

23 3.00 3.0

24 3.10 3.1

25 2.60 2.6

26 3.10 3.1 95cm

27 3.10 3.1 70cm

28 3.10 3.1 84cm

29 2.50 2.5

30 3.00 3.0

35 15.00 3.0

40 14.00 2.8

45 13.95 2.8

50 13.00 2.6

55 14.00 2.8

60 13.00 2.6

70 24.00 2.4

80 25.80 2.6

90 26.00 2.6

100 26.00 2.6

110 26.00 2.6

120 25.50 2.6

349.8

2.60

2.60

temperature(℃)


Test time 120

Remarks Column




basal plain


Quantity of initial

flooding and an

elapsed time35 ㎝

permeability test

start

①InitialQuantity

ofwater(L)

②EndQuantity

ofwater(L)

①－②Quantity

ofinfiltration (L)

Remarks



Facilities form

Facilities size(m)

Digging

No.1 Observation






Basin


- 5 -


Survey point

elapsedtime

Quantityof

infiltration



0

0

1 5.40 5.4

2 5.80 5.8

3 5.20 5.2

4 5.00 5.0

5 5.00 5.0 95cm

6 5.10 5.1 70cm

7 4.95 5.0 83cm

8 4.90 4.9

9 4.90 4.9

10 4.95 5.0

11 5.00 5.0

12 4.60 4.6

13 4.40 4.4

14 4.60 4.6

15 4.40 4.4

20 22.00 4.4

25 22.00 4.4

30 21.40 4.3

35 20.00 4.0

40 21.00 4.2

45 20.00 4.0

temperature(℃)


Test time

Remarks Column




basal plain


Quantity of initial

flooding and an

elapsed time35 ㎝

permeability test

start

①InitialQuantity

ofwater(L)

②EndQuantity

ofwater(L)

①－②Quantity

ofinfiltration (L)

Remarks



Facilities form

Facilities size(m)

Digging

No.1 Observation






Basin


- 6 -


Survey point

elapsedtime

Quantityof

infiltration



0

45

50 19.50 3.9

55 20.00 4.0

60 20.00 4.0

65 21.00 4.2

70 20.00 4.0 95cm

80 39.60 4.0 70cm

90 40.00 4.0 83cm

100 40.50 4.1

110 40.00 4.0

120 40.50 4.1

501.7

4.00

4.00

temperature(℃)


Test time 120

Remarks Column




basal plain


Quantity of initial

flooding and an

elapsed time35 ㎝

permeability test

start

①InitialQuantity

ofwater(L)

②EndQuantity

ofwater(L)

①－②Quantity

ofinfiltration (L)

Remarks



Facilities form

Facilities size(m)

Digging

No.1 Observation






Basin


- 7 -

Table 1-7 №1 result of test（Falling head test）

Survey point

elapsedtime

elapsedtime

elapsedtime

(min) First Second (min) First Second (min) First Second

0 70.0

1 67.0

2 64.5

3 62.0

4 60.0

5 58.0

6 56.0

7 54.0 97cm

8 52.0 70cm

9 50.5 89cm

10 48.5

15 41.0

20 34.5

25 29.0

30 24.5

35 20.5

40 17.0

45 14.0

50

55 9.0

60 6.5

370

120 flooding time(min)

Remarks Column

basal plain

35 ㎝

Quantity of initial flooding

and flooding time

initial discrete

value

examination start

valueQuantity of

flooding(L)

Water levelchange of an

examination well（㎝）






observation well

The start time 11:23 ～The end time 12:23 Examination time Total

Facilities form

Facilities size(m)

Digging

No.1 Observation


Data Sheet of Permeability test (falling head permeability test)




Basin


- 8 -


Survey point

elapsedtime

elapsedtime

elapsedtime


0 70.0

1 67.5

2 65.4

3 63.5

4 61.0

5 59.1

6 57.0

7 55.5 95cm

8 53.3 70cm

9 51.4 84cm

10 49.8

15 41.5

20 35.2

25 28.4

30 23.2

420

120

Quantity of

flooding(L)

flooding time(min)

Remarks Column

35 ㎝

basal plain


and flooding time

initial discrete

value

examination start

value








observation well


Facilities form

Facilities size(m)

Digging

No.1 Observation






Basin


- 9 -


Survey point

elapsedtime

elapsedtime

elapsedtime


0 70.0

1 66.0

2 62.0

3 58.0

4 54.5

5 51.0

6 47.5

7 44.5 95cm

8 42.0 70cm

9 39.0 83cm

10 36.5

15 25.5

20 17.0

25 10.0

30 4.0

580

120

Quantity of

flooding(L)

flooding time(min)

Remarks Column

35 ㎝

basal plain


and flooding time

initial discrete

value

examination start

value








observation well


Facilities form

Facilities size(m)

Digging

No.1 Observation






Basin


- 10 -

(Reference) Saturated hydraulic conductivity that is adopted in the permeability map

Table 1-10 Saturated hydraulic conductivity that is adopted in the permeability map of comprehensive flood control at the identification river area.

Table 1-11 Saturated hydraulic conductivity of every topography classification at Saitama prefecture

Table 1-12 Saturated hydraulic conductivity that is adopted in the permeability map of Tokyo

River basin Geology and geographySaturated hydraulic

conductivity (m/sec)Turumi river basin Kanto loam, kazusa layer 2.8E-05Shingashi river basin Musashino loam, Tachukawa loam, 1.0E-05(Tokyo,Saitama prefecture) Shimosueyoshi loam 5.0E-06Sin river basin Tableland / Hill 7.9E-06(Aichi prefecture) Slight elevation 2.3E-05

Lowland 2.0E-06neya river basin Sand 3.0E-06(Osaka)bachi river basin Tableland/Alluvial Lowland /alluvial fan 1.0E-05(kitakyuushuu city Fukuoka prefecture)

classification Target soil layerSaturated hydraulic

conductivity (m/sec)

Shimosueyoshi layer loam 5.0E-05

mid-prefecture: Ara riverbasin

loam 3.0E-05

East-prefecture: Naka riverand Ayase river basin

loam 4.0E-05

South-prefecture:shingashi river basin

loam 3.0E-05

mid-prefecture and north-prefecture

loam 1.5E-05

West-prefecture: Ara riverbasin

coarse fragmentmingling soil

2.0E-06

alluvial fan coarse fragment soil 3.0E-05

The areathat was

suitable foran infiltration

measure

highland

Musashino layer

Tachikawa layer

Topography classification

If ground water level is deep, it is a right area

classificationSaturated hydraulicconductivity (m/sec)

Tachikawa loam layer

Musashino loam layer

Tama loam layer

Shimosueyoshi layer

The area that needs takinginto consideration of thetopographyis.

Infiltration effect issurveied, so, Saturated

hydraulic conductivity issetted

mountain land, alluvial lowland, Artificial ch

3.8E-05The area that is suitable

for an infiltration measure

Topography classification

Highland

The Pr

roject for C

T

Capacity Dev

Table 1-13

velopment of

Satura

Table 1-14

f Jakarta C

- 11 -

ated hydraul

resu

Comprehensiv

ic conductiv

ult of gravity

ve Flood M

ity of each so

Management Annex-3 Ru

oil

in Indonesiaunoff Contro

aol


Annex- 2

Design Drawing of Facility


- 1 -

Figure 2-1 Plan

The Pr

roject for CCapacity Dev

velopment of

Figure 2-2

Figure 2-3

f Jakarta C

- 2 -

Plan

3 Cro

Comprehensiv

n（Detail）

oss Section

ve Flood M



aol

The Pr


Figu

velopment of

ure 2-4

f Jakarta C

- 3 -

Plan of E

Comprehensiv

Execution Sch

ve Flood M

heme



aol


- 4 -

Figure 2-5 Result of Survey

Bottom of gutter : -700


- 5 -

Figure 2-6 Detail Design of Drainage and Box


Annex- 3

Evaluation of Runoff Control Effect of Pilot Project (Rainwater Storage Infiltration Facility)


- 1 -

Evaluation of runoff control effect of Pilot project (Rainwater storage Infiltration Facility) Runoff control effect of RSIF is evaluated under some calculate conditions. Result of evaluation is shown below.

1. Study Case

・Case1：without Bypass ・Case2：with Bypass ①Diameter of bypass pipe:D200、gradient of bypass pipeI=1/500、

Bypass flowQ＝0.0191m3/s ②Diameter of bypass pipe:D200、gradient of bypass pipeI=1/400、

Bypass flowQ＝0.0213 m3/s ③Diameter of bypass pipe:D250、gradient of bypass pipeI=1/500、

Bypass flowQ＝0.0346 m3/s ④Diameter of bypass pipe:D250、gradient of bypass pipeI=1/400、

Bypass flowQ＝0.0387 m3/s

・Case3：without Bypass and save the facility inflow(future)-inflow(present).ΔQ＝0

2. Condition of Calculate

・Catchment Area：0.5ha ・Run-off Coefficient：past 0.5(settlement) present 0.8(urban) ・Flood Arrival Time：tc=10 minutes （because catchment area is extremely small.）・Rainfall Curve: 12-hour middle concentration curve ・Return Period：1/2、1/5、1/10、1/25、1/50 ・Rainfall Intensity curve： Pondok Betung Cileduk（Cf. Figure 1.1）

Return Period 1/2 1/5 1/10 1/25 1/50 Rainfall Intensity curve

7122.2 t+55.264

4977.6 t0.9+24.497

2798.5 t0.8+6.736

3286.7 t0.8+8.817

2582.8 t3/4+3.803

10 分雨量 109.1mm/hr 153.4 mm/hr 214.5 mm/hr 217.3 mm/hr 274.0 mm/hr ・Strage capacity：102m2＝9m×9m×1.33m ×0.95（Void rate = 95％）・Unit design infiltration rate：0.00203m3/s ・Method of Runoff Analysis：Rational method ・Model of Infiltration Facility：Fixed amount deduction model

The Pr


F

velopment of

Figure 2-1

f Jakarta C

- 2 -

Pondok Be

Comprehensiv

tung Ciledu

ve Flood M

uk



aol

The Pr

●BypasBypass fResult o・Pipe d・Inclin・(Mann

Pipediamet

D(mm)

1

2

2

3

roject for C

ss flow flow is calcuf calculate is

diameter D

ne of pipe : 1/ning roughne

Table

Tab

erRadius

ｄ(mm)

150 7

200 10

250 12

300 15

V=(1/n)

Capacity Dev

ulated by Mans shown belo：150mm、

/500 ess coefficien

e 2-1

ble 2-2

ψ

(rad)

75 3.1415

00 3.1415

25 3.1415

50 3.1415

)･AR2/3I1/2

velopment of

nning formuow. 、200mm、

nt：n=0.010

Pipe diame

Cross-se

width ofwater

surface

B(ｍ)

9 0.000

9 0.000

9 0.000

9 0.000

Q=AV

f Jakarta C

- 3 -

ula under the

250mm、

0（Pipe mat

eter, Velocity

ectiona area

Manning

Dischargearea

A(m2)

0 0.01767

0 0.03142

0 0.04909

0 0.07069

Fr=V/√(g

Comprehensiv

full bobbin c

300mm、

terial：vinyl

y and Disch

aof flow and

g roughnes

Incl

Hydraulicradius

R（m）

0.03750

0.05000

0.06250

0.07500

g･A/B)

ve Flood M

condition.

l chloride pip

arge (full bo

d hydrau rad

ss coeffic

line of pi

Currentvelocity

D

Ｖ(m/s) Ｑ

0.5010

0.6070

0.7043

0.7953


pe）

obbin)

dius

ient: n

pe I=1/

ischarge Fn

Ｑ(m3/s)

0.0089

0.0191

0.0346

0.0562


0.01

500

0.20%Froudenumber

Fｒ

0.0000

0.0000

0.0000

0.0000

aol


- 4 -

Table 2-3 Manning roughness coefficient

3. Result of runoff analysis

3.1 Case1：Without bypass flow

Result of runoff analysis without bypass flow is shown below. By rain fall of return period 2 years RSIF becomes full.

Table 3.1-1 Result of runoff analysis without bypass pipe

Hydrographic Type Hydrographic Condition Range of ｎ Value standard value　of ｎ Value　cast-in place concrete 0.015　concrete pipe 0.013　corrugated metal pipe（Type 1） 0.024　　　　　〃　　　　（Type 2）　 0.033　　　　　〃　　　　 (with paving) 0.012　polyvinyl-chloride pipe 0 .010 precast concrete 0.013　steel, without coating, flat and smooth 　0.011～0.014 0.012　mortar 　0.011～0.015 0.013 plane finished wood 　0.012～0.018 0.015　concrete lining 　0.011～0.015 0.015　concrete with gravel channel bed 　0.015～0.020 0.017 wet masonry with mortar 　0.017～0.030 0.025　dry masonry 　0.023～0.035 0.032 asphalt lining 0.013 0.013　soil, straight line, uniform section 　0.016～0.025 0.022　soil, straight line channel, weedy 　0.022～0.033 0.027　gravel, straight line channel 　0.022～0.030 0.025　rock, straight line channel 　0.025～0.040 0.035 uniform section 　0.025～0.033 0.030 non-uniform section with glasses and trees 　0.075～0.150 0.100

Natural Channel

Culvert

Channel with lining

Channel withoutlining

1/2 1/5 1/10 1/25 1/50(1) Inflow(m3/s) 0.12125 0.17049 0.23835 0.24142 0.30444(2) Outflow(m3/s) 0.11922 0.16846 0.23632 0.23939 0.30241(3) ΔQ(m3/s) 0.00203 0.00203 0.00203 0.00203 0.00203 (2)-(1)(4) Effect(%) 1.7% 1.2% 0.9% 0.8% 0.7% (3)/(1)(5) Storage Volume(m3) 102 102 102 102 102

The Pr

roject for C

W

Capacity Dev

Figure-3.

W=1/5

W=1/2

velopment of

1-1(1) Ca

f Jakarta C

- 5 -

ase-1: Resul

Comprehensiv

lt of runoff a

ve Flood M

analysis(1)



aol

The Pr


Figure-3.1

W=1/25

W=1/10

W=1/50

velopment of

1-1(2) Ca

f Jakarta C

- 6 -

ase-1: Result

Comprehensiv

t of runoff a

ve Flood M

analysis (2)



aol


- 7 -

3.2 ：Case1 With bypass flow

The runoff control analysis with bypass flow is calculated by four(4) cases which is shown below. ①Diameter of bypass pipe:D200、incline of bypass pipe I=1/500、

Bypass flow Q＝0.0191 m3/s ②Diameter of bypass pipe:D200、incline of bypass pipe I=1/400、

Bypass flow Q＝0.0213 m3/s ③Diameter of bypass pipe:D250、incline of bypass pipe I=1/500、

Bypass flow Q＝0.0346 m3/s ④Diameter of bypass pipe:D250、incline of bypass pipe I=1/400、

Bypass flow Q＝0.0387 m3/s Result of runoff analysis with bypass flow is shown below. The effect of RSIF in rain fall of return period 2 years every case is shown below.

Table-3.2-1 The effect of runoff control of RSIF（return period 2 years）

Case Effect① D200 I=1/500 Q＝0.0191 m3/s

・At the downstream of RSIF peak discharge changes in Q=0.121 m3/s which is after runoff control from Q=0.121 m3/s which is before runoff control. The peak discharge which is after runoff control (Q=0.121 m3/s) is more than peak discharge which is before development (Q=0.076 m3/s). From this result △Q=0 policy is not secured and RSIF become full before peak discharge outbreak. ・At the just under RSIF runoff control volume is about 0.021 m3/s by RSIF and Bypass flow. It is effective in about 17% for peak discharge before runoff control which is 0.121 m3/s.

② D200 I=1/400 Q＝0.0213 m3/s

・At the downstream of RSIF peak discharge changes in Q=0.116 m3/s which is after runoff control from Q=0.121 m3/s which is before runoff control. The peak discharge which is after runoff control (Q=0.121 m3/s) is more than peak discharge which is before development (Q=0.076 m3/s). From this result △Q=0 policy is not secured and at that time the effect of runoff control is about 4％. ・At the just under RSIF runoff control volume is about 0.029m3/s by RSIF and Bypass flow. It is effective in about 24% for peak discharge before runoff control which is 0.121 m3/s. ・The effect of only RSIF is about 5％ for peak inflow to facility.

③ D250 I=1/500 Q＝0.0346 m3/s

・At the downstream of RSIF peak discharge changes in Q=0.068 m3/s which is after runoff control from Q=0.121 m3/s which is before runoff control. The peak discharge which is after runoff control (Q=0.068 m3/s) is smaller than peak discharge which is before development (Q=0.076 m3/s). From this result △Q=0 policy is secured and at that time the effect of runoff control is about 44％. ・At the just under RSIF runoff control volume is about 0.090 m3/s by RSIF and Bypass flow. It is effective in about 74% for peak discharge before runoff control which is 0.121 m3/s. ・The effect of only RSIF is about 63％ for peak inflow to facility.

④ D250 I=1/400 Q＝0.0387 m3/s

・At the downstream of RSIF peak discharge changes in Q=0.048 m3/s which is after runoff control from Q=0.121 m3/s which is before runoff control. The peak discharge which is after runoff control (Q=0.048 m3/s) is smaller than peak discharge which is before development (Q=0.076 m3/s). From this result △Q=0 policy is secured and at that time the effect of runoff control is about 62％. ・At the just under RSIF runoff control volume is about 0.114 m3/s by RSIF and


- 8 -

Bypass flow. It is effective in about 94% for peak discharge before runoff control which is 0.121 m3/s. ・The effect of only RSIF is about 92％ for peak inflow to facility.

The hydrograph and result of runoff control analysis with every return period is shown in Figure3.2-1～3.2-4.

① Result of runoff control analysis with Bypass flow（Diameter：φ200、I=1/500、Q=0.0191 m3/s）

②Result of runoff control analysis with Bypass flow（Diameter：φ200、I=1/400、Q=0.0213 m3/s）

1/2 1/5 1/10 1/25 1/50Rainfall Storage Infiltration Facility(RSIF)+Bypass

m3/s 0.12125 0.17049 0.23835 0.24142 0.30444m3/s 0.01910 0.01910 0.01910 0.01910 0.01910m3/s 0.00203 0.00203 0.00203 0.00203 0.00203

④Inflow to RSIF m3/s 0.10012 0.14936 0.21722 0.22029 0.28331⑤Outflow AfterRunoff Control

m3/s 0.10012 0.14936 0.21722 0.22029 0.28331

⑥Effect 1 ④-⑤ m3/s 0.00000 0.00000 0.00000 0.00000 0.00000⑦Effect 1 (％) (%) 0.0% 0.0% 0.0% 0.0% 0.0%⑧Storage Volume (m3) 102.0 102.0 102.0 102.0 102.0⑨Effect 2 ①-⑤ m3/s 0.02113 0.02113 0.02113 0.02113 0.02113⑩Effect 2 (％)⑨/①*100

(%) 17.4% 12.4% 8.9% 8.8% 6.9%

Downstream of RSIFm3/s 0.12125 0.17049 0.23835 0.24142 0.30444

m3/s 0.12125 0.17049 0.23835 0.24142 0.30444

m3/s 0.00000 0.00000 0.00000 0.00000 0.00000(%) 0.0% 0.0% 0.0% 0.0% 0.0%

②Bypass flow①Inflow before Runoff Control

⑪Outflow after runoffcontrol(RSIF+Bypass)⑫Total Effect ①-⑪⑬Total Effect(％) ⑫/①*100

RSIF

RSIF+Bypass

③Infiltration Volume

①Inflow before Runoff Control


m3/s 0.12125 0.17049 0.23835 0.24142 0.30444m3/s 0.02130 0.02130 0.02130 0.02130 0.02130m3/s 0.00203 0.00203 0.00203 0.00203 0.00203


m3/s 0.09254 0.14716 0.21502 0.21809 0.28111


(%) 23.7% 13.7% 9.8% 9.7% 7.7%


m3/s 0.11587 0.17049 0.23835 0.24142 0.30444

m3/s 0.00538 0.00000 0.00000 0.00000 0.00000(%) 4.4% 0.0% 0.0% 0.0% 0.0%



RSIF

RSIF+Bypass




- 9 -

③Result of runoff control analysis with Bypass flow（Diameter：φ250、I=1/500、Q=0.0346 m3/s）

④Result of runoff control analysis with Bypass flow（Diameter：φ250、I=1/400、Q=0.0387 m3/s）


m3/s 0.12125 0.17049 0.23835 0.24142 0.30444m3/s 0.03460 0.03460 0.03460 0.03460 0.03460m3/s 0.00203 0.00203 0.00203 0.00203 0.00203


m3/s 0.03151 0.13386 0.20172 0.20479 0.26781

⑥Effect 1 ④-⑤ m3/s 0.05311 0.00000 0.00000 0.00000 0.00000⑦Effect 1 (％)⑥/④*100

(%) 62.8% 0.0% 0.0% 0.0% 0.0%

⑧Storage Volume (m3) 102.0 102.0 102.0 102.0 102.0⑨Effect 2 ①-⑤ m3/s 0.08974 0.03663 0.03663 0.03663 0.03663⑩Effect 2 (％)⑨/①*100

(%) 74.0% 21.5% 15.4% 15.2% 12.0%


m3/s 0.06814 0.17049 0.23835 0.24142 0.30444

m3/s 0.05311 0.00000 0.00000 0.00000 0.00000(%) 43.8% 0.0% 0.0% 0.0% 0.0%



RSIF

RSIF+Bypass




m3/s 0.12125 0.17049 0.23835 0.24142 0.30444m3/s 0.03870 0.03870 0.03870 0.03870 0.03870m3/s 0.00203 0.00203 0.00203 0.00203 0.00203


m3/s 0.00686 0.12064 0.19762 0.20069 0.26371


(%) 94.3% 29.2% 17.1% 16.9% 13.4%


m3/s 0.04759 0.16137 0.23835 0.24142 0.30444

m3/s 0.07366 0.00912 0.00000 0.00000 0.00000(%) 60.7% 5.3% 0.0% 0.0% 0.0%



RSIF

RSIF+Bypass



The Pr

◆ Byp

Figure 3

m3/s0.12125

①InflowbeforeRunoffControl

m3/s0.17049


roject for C

ass flow Q=0

3.2-1(1) C

m3/s m3/s0.01910 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

m3/s m3/s0.01910 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

Capacity Dev

0.0191 m3/s

Case-2: Resu

m3/s m33 0.10012 0.1

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

m3/s m33 0.14936 0.1

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/2

W=1/5

velopment of

、D200、I=

ult of runoffD2

3/s m3/s10012 0.00000

nfiltration FaciRSIF

⑤flowternofftrol

⑥Effect　1

④-⑤

3/s m3/s14936 0.00000

⑥Effect　1

④-⑤


⑤flowternofftrol

f Jakarta C

- 10 -

=1/500

f analysis(1)200、I=1/50

(%) (m3)0.0% 102

lity + Bypass

⑦Effect1(％)⑥/④*100

⑧StoragVolume

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehensiv

（W=1/2、10）

m3/s.0 0.02113

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

gee

m3/s.0 0.02113

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ve Flood M

1/5、Bypass

(%) m3/s17.4% 0.12125

D

⑩fect(％)

⑨/①*100

ss ①InflowbeforeRunoffControl

(%) m3/s12.4% 0.17049

⑩fect(％)

⑨/①*100

Dss ①

InflowbeforeRunoffControl


flow Q=0.01

m3/s m3/s0.12125 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)

⑫TotalEffect①-⑪

m3/s m3/s0.17049 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



191m3/s 、

(%)000 0.0%

SIF

⑬Total

Effect(％)

⑫/①*100

t⑪

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Fi

m3/s0.23835


m3/s0.24142


roject for C

ss flow Q=0.

igure 3.2-1(2

m3/s m3/s0.01910 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

m3/s m3/s0.01910 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

W

W

Capacity Dev

0191 m3/s 、

2) Case-2

m3/s m33 0.21722 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

m3/s m33 0.22029 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/10

W=1/25

velopment of

、D200、I=

2: Result of rQ=0.0191m

3/s m3/s21722 0.00000

⑥Effect　1

④-⑤


⑤flowternofftrol

3/s m3/s22029 0.00000

⑥Effect　1

④-⑤


⑤flowternofftrol

f Jakarta C

- 11 -

1/500

runoff analym3/s 、D200

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehensiv

ysis(2)（W=、I=1/500）

m3/s.0 0.02113

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

m3/s.0 0.02113

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ve Flood M

=1/10、1/25、

(%) m3/s8.9% 0.23835

⑩fect(％)

⑨/①*100

Dss ①


(%) m3/s8.8% 0.24142

⑩fect(％)

⑨/①*100

Dss ①



、Bypass flo

m3/s m3/s0.23835 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)


m3/s m3/s0.24142 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



ow

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Figure 3

m3/s0.30444


roject for C

ss flow Q=0.

3.2-1(3) C

m3/s m3/s0.01910 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

W

Capacity Dev

0191 m3/s 、

Case-2: Resu

m3/s m33 0.28331 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/50

velopment of

、D200、I=

ult of runoffD2

3/s m3/s28331 0.00000

⑥Effect　1

④-⑤


⑤flowternofftrol

f Jakarta C

- 12 -

1/500

f analysis(3)

200、I=1/50

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehensiv

)（W=1/50、0）

m3/s.0 0.02113

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ve Flood M

Bypass flo

(%) m3/s6.9% 0.30444

⑩fect(％)

⑨/①*100

Dss ①



ow Q=0.0191

m3/s m3/s0.30444 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



1m3/s 、

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Figure 3

m3/s0.12125


m3/s0.17049


roject for C

ss flow Q=0.

3.2-2(1) C

m3/s m3/s0.02130 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

m3/s m3/s0.02130 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

W

Capacity Dev

0213 m3/s 、

Case-2: Resu

m3/s m33 0.09792 0.0

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

m3/s m33 0.14716 0.1

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/2

W=1/5

velopment of

、D200、I=

ult of runoffD2

3/s m3/s09254 0.00538


⑤flowternofftrol

⑥Effect　1

④-⑤

3/s m3/s14716 0.00000

⑥Effect　1

④-⑤


⑤flowternofftrol

f Jakarta C

- 13 -

1/400


(%) (m3)5.5% 102

lity + Bypass

⑦Effect1(％)⑥/④*100

⑧StoragVolume

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehensiv

（W=1/2、1/0）

m3/s.0 0.02871

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

gee

m3/s.0 0.02333

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ve Flood M

/5、Bypass fl

(%) m3/s23.7% 0.12125

D

⑩fect(％)

⑨/①*100

ss ①InflowbeforeRunoffControl

(%) m3/s13.7% 0.17049

⑩fect(％)

⑨/①*100

Dss ①



flow Q=0.021

m3/s m3/s0.11587 0.005

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)


m3/s m3/s0.17049 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



13m3/s、

(%)538 4.4%

SIF

⑬Total

Effect(％)

⑫/①*100

t⑪

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Figure 3

m3/s0.23835


m3/s0.24142


roject for C

ss flow Q=0.

3.2-2(2) C

m3/s m3/s0.02130 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

m3/s m3/s0.02130 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

W

W

Capacity Dev

0213 m3/s 、

Case-2: Resu

m3/s m33 0.21502 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

m3/s m33 0.21809 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/10

W=1/25

velopment of

、D200、I=

ult of runoffD2

3/s m3/s21502 0.00000

⑥Effect　1

④-⑤


⑤flowternofftrol

3/s m3/s21809 0.00000

⑥Effect　1

④-⑤


⑤flowternofftrol

f Jakarta C

- 14 -

1/400


(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehensiv

（W=1/2、1/50）

m3/s.0 0.02333

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

m3/s.0 0.02333

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ve Flood M

5、Bypass flo

(%) m3/s9.8% 0.23835

⑩fect(％)

⑨/①*100

Dss ①


(%) m3/s9.7% 0.24142

⑩fect(％)

⑨/①*100

Dss ①



ow Q=0.021

m3/s m3/s0.23835 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)


m3/s m3/s0.24142 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



13 m3/s、

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Figure 3

m3/s0.30444


roject for C

ss flow Q=0.

3.2-2(3) C

m3/s m3/s0.02130 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

W=

Capacity Dev

0213 m3/s 、

Case-2: Resu

m3/s m33 0.28111 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

=1/50

velopment of

、D200、I=

ult of runoffD2

3/s m3/s28111 0.00000

⑥Effect　1

④-⑤


⑤flowternofftrol

f Jakarta C

- 15 -

1/400


(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehensiv

（W=1/2、1/0）

m3/s.0 0.02333

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ve Flood M

/5、Bypass fl

(%) m3/s7.7% 0.30444

⑩fect(％)

⑨/①*100

Dss ①



flow Q=0.021

m3/s m3/s0.30444 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



13m3/s、

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Figure 3

m3/s0.12125


m3/s0.17049


roject for C

ss flow Q=0.

3.2-3(1) C

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

Capacity Dev

0346 m3/s 、

Case-2: Resu

m3/s m33 0.08462 0.0

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

m3/s m33 0.13386 0.1

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/2

W=1/5

velopment of

、D250、I=

ult of runoffD2

3/s m3/s03151 0.05311

⑥Effect　1

④-⑤


⑤flowternofftrol

3/s m3/s13386 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤

f Jakarta C

- 16 -

1/500


(%) (m3)62.8% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehensiv

（W=1/2、1/0）

m3/s.0 0.08974

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

m3/s.0 0.03663

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ve Flood M

/5、Bypass fl

(%) m3/s74.0% 0.12125


D

⑩fect(％)

⑨/①*100

ss

(%) m3/s21.5% 0.17049

⑩fect(％)

⑨/①*100

Dss ①



flow Q=0.034

m3/s m3/s0.06814 0.053

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)


Downstream of RS

m3/s m3/s0.17049 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



46m3/s、

(%)311 43.8%

t⑪

SIF

⑬Total

Effect(％)

⑫/①*100

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Figure 3

m3/s0.23835


m3/s0.24142


roject for C

ss flow Q=0.

3.2-3(2) C

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

Capacity Dev

0346 m3/s 、

Case-2: Resu

m3/s m33 0.20172 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

m3/s m33 0.20479 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/10

W=1/25

velopment of

、D250、I=

ult of runoffD2

3/s m3/s20172 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤

3/s m3/s20479 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤

f Jakarta C

- 17 -

1/500


(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehensiv

（W=1/10、10）

m3/s.0 0.03663

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

m3/s.0 0.03663

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ve Flood M

1/25、Bypass

(%) m3/s15.4% 0.23835

⑩fect(％)

⑨/①*100

Dss ①


(%) m3/s15.2% 0.24142

⑩fect(％)

⑨/①*100

Dss ①



s flow Q=0.0

m3/s m3/s0.23835 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)


m3/s m3/s0.24142 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



0346m3/s、

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Figure 3

m3/s0.30444


roject for C

ss flow Q=0.

3.2-3(3) C

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

W

Capacity Dev

0346 m3/s 、

Case-2: Resu

m3/s m33 0.26781 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

=1/50

velopment of

、D250、I=

ult of runoff

3/s m3/s26781 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤

f Jakarta C

- 18 -

1/500

f analysis(3)I=1/500）

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehensiv

（W=1/50、B

m3/s.0 0.03663

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ve Flood M

Bypass flow Q

(%) m3/s12.0% 0.30444

⑩fect(％)

⑨/①*100

Dss ①



Q=0.0346m

m3/s m3/s0.30444 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



3/s、D250、

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Figure 3

m3/s0.12125


m3/s0.17049


roject for C

ss flow Q=0.

3.2-4(1) C

m3/s m3/s0.03870 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

m3/s m3/s0.03870 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

Capacity Dev

0387 m3/s 、

Case-2: Resu

m3/s m33 0.08052 0.0

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

m3/s m33 0.12976 0.1

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/2

W=1/5

velopment of

、D250、I=

ult of runoffD2

3/s m3/s00686 0.07366


⑤flowternofftrol

⑥Effect　1

④-⑤

3/s m3/s12064 0.00912


⑤flowternofftrol

⑥Effect　1

④-⑤

f Jakarta C

- 19 -

1/400


(%) (m3)91.5% 102

⑧StoragVolume

lity + Bypass

⑦Effect1(％)⑥/④*100

(%) (m3)7.0% 102

lity + Bypass

⑦Effect1(％)⑥/④*100

⑧StoragVolume

Comprehensiv

（W=1/2、1/0）

m3/s.0 0.11439

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

m3/s.0 0.04985

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

gee

ve Flood M

/5、Bypass fl

(%) m3/s94.3% 0.12125


D

⑩fect(％)

⑨/①*100

ss

(%) m3/s29.2% 0.17049

⑩fect(％)

⑨/①*100

Dss ①



flow Q=0.034

m3/s m3/s0.04759 0.073

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)


Downstream of RS

m3/s m3/s0.16137 0.009

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



46m3/s、

(%)366 60.7%

t⑪

SIF

⑬Total

Effect(％)

⑫/①*100

(%)912 5.3%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Figure 3

m3/s0.23835


m3/s0.24142


roject for C

ss flow Q=0.

3.2-4(2) C

m3/s m3/s0.03870 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

m3/s m3/s0.03870 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

Capacity Dev

0387 m3/s 、

Case-2: Resu

m3/s m33 0.19762 0.1

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

m3/s m33 0.20069 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/10

W=1/25

velopment of

、D250、I=

ult of runoffD2

3/s m3/s19762 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤

3/s m3/s20069 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤

f Jakarta C

- 20 -

1/400


(%) (m3)0.0% 102

lity + Bypass

⑦Effect1(％)⑥/④*100

⑧StoragVolume

(%) (m3)0.0% 102

lity + Bypass

⑦Effect1(％)⑥/④*100

⑧StoragVolume

Comprehensiv

（W=1/10、10）

m3/s.0 0.04073

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

gee

m3/s.0 0.04073

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

gee

ve Flood M

1/25、Bypass

(%) m3/s17.1% 0.23835

⑩fect(％)

⑨/①*100

Dss ①


(%) m3/s16.9% 0.24142

⑩fect(％)

⑨/①*100

Dss ①



s flow Q=0.0

m3/s m3/s0.23835 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)


m3/s m3/s0.24142 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



0346m3/s、

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

◆Bypas

Figure 3

m3/s0.30444


roject for C

ss flow Q=0.

3.2-4(3) C

m3/s m3/s0.03870 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

W

Capacity Dev

0387 m3/s 、

Case-2: Resu

m3/s m33 0.26371 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

=1/50

velopment of

、D250、I=

ult of runoff

3/s m3/s26371 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤

f Jakarta C

- 21 -

1/400

f analysis(3)I=1/400）

(%) (m3)0.0% 102

lity + Bypass

⑦Effect1(％)⑥/④*100

⑧StoragVolume

Comprehensiv

（W=1/50、B

m3/s.0 0.04073

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

gee

ve Flood M

Bypass flow Q

(%) m3/s13.4% 0.30444

⑩fect(％)

⑨/①*100

Dss ①



Q=0.0346m

m3/s m3/s0.30444 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



3/s、D250、

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

aol

The Pr

3.3 Cas

The reBypass f

The stoperiod is Table 3

(1) Cur(2) Bef(3) ΔQ(4) Eff(5) Sto

roject for C

se3： Contro

esult of Runoflow is showorage capacits about 247 m

3.3-1 The sto

rrent(f=0.8)fore(f=0.5)(Q(m3/s)fect(%)orage Volume

W

Capacity Dev

ol the future

off control anwn below. ty of which am3.

orage capac

Figure 3.

(m3/s)(m3/s)

e(m3)

W=1/5

W=1/2

velopment of

e increase di

nalysis after

are necessary

ity of which

3-1(1) Ca

1/20.121250.075780.04547

37.5%247.0

f Jakarta C

- 22 -

scharge (ΔQ

control the f

y to achieve Δ

h are necessaflow)

ase-3: Result

1/50.170490.106550.06394

37.5%332.7

Comprehensiv

＝Q 0) withou

future increas

ΔQ=0 policy

ary to achiev

t of runoff a

1/100.238350.148970.08938

37.5%373.6

ve Flood M

ut Bypass flo

se discharge

y under two (

ve ΔQ=0 pol

analysis(1)

1/250.241420.150890.09053

37.5%435.8


ow.

(ΔQ＝0) w

(2) years retu

licy(without

1/500.304440.190280.11416

37.5%487.7


without

urn

t bypass

(2)-(1)(3)/(1)

aol

The Pr

roject for C

W

Capacity Dev

Figure 3.

W=1/25

W=1/10

W=1/50

velopment of

3-1(2) Ca

f Jakarta C

- 23 -

ase-3: Result

Comprehensiv

t of runoff a

ve Flood M

analysis(3)



aol

The Pr

（Refere◆The by

The calyears ret

Fig

The calm3/s tha

m3/s0.12125


roject for C

ence） ypass flow olculation resuturn period is

gure 3.3-1(2)

lculation reat mentione

Diameter (mm) 200 250

m3/s m3/s0.03350 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

Capacity Dev

of which are ult of the byps 0.0335 m3/

) 3: Resul

esult of incled above is

Incline

1/11/5

m3/s m33 0.08572 0.0

④Inflow to

RSIF

⑤OutfAftRunCont

nfall Storage In

a

velopment of

necessary topass flow whs.

t of runoff a

line of bypas shown bel

of pape

162 541

3/s m3/s03907 0.04665

⑤flowternofftrol

⑥Effect　1

④-⑤


f Jakarta C

- 24 -

o achieve ΔQhich are nece

analysis(2)

ass pipe whlow.

Distance(m)8.28.2

(%) (m3)54.4% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehensiv

=0 policy unessary to ach

（W=1/2、by

hich are nec

of pipe)

v

m3/s.0 0.08218

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ve Flood M

nder two (2) yieve ΔQ=0 p

ypass flow Q

cessary to a

vertical inte(m

0.00.0

(%) m3/s67.8% 0.12125

⑩fect(％)

⑨/①*100

Dss ①



years return policy under

Q=0.0335m3

achieve Q=

erval of pipem) 051 015

m3/s m3/s0.07460 0.046

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



period. two (2)

3/s）

=0.0335

e

(%)665 38.5%

⑬Total

Effect(％)

⑫/①*100

SIF

t⑪

aol


- 25 -

Table 3.3-2 Pipe diameter, Velocity and Discharge (full bobbin):Case D=200

Table 3.3-3 Pipe diameter, Velocity and Discharge (full bobbin):Case D=250

The discharge in full bobbin that is calculated from condition of vertical slope and diameter and the vertical interval in this condition is shown below.

Manning roughness coefficient: n 0.01

Incline of pipe I=1/ 162

0.62%Pipe

diameterRadius ψ width of

watersurface

Dischargearea

Hydraulicradius

Currentvelocity

Discharge Froudenumber

D(mm) ｄ(mm) (rad) B(ｍ) A(m2) R（m）Ｖ(m/s) Ｑ(m3/s) Fｒ

200 100 3.14159 0.000 0.03142 0.05000 1.0663 0.0335 0.0000

V=(1/n)･AR2/3I1/2 Q=AV Fr=V/√(g･A/B)

Manning roughness coefficient: n 0.01

Incline of pipe I=1/ 531

0.19%Pipe

diameterRadius ψ width of

watersurface

Dischargearea

Hydraulicradius

Currentvelocity

Discharge Froudenumber

D(mm) ｄ(mm) (rad) B(ｍ) A(m2) R（m）Ｖ(m/s) Ｑ(m3/s) Fｒ

250 125 3.14159 0.000 0.04909 0.06250 0.6834 0.0335 0.0000

V=(1/n)･AR2/3I1/2 Q=AV Fr=V/√(g･A/B)

■The discharge in full bobbin

1/300 1/400 1/500 1/600 1/700 1/800 1/900 1/1000200 0.0246 0.0213 0.0191 0.0174 0.0161 0.0151 0.0142 0.0135250 0.0446 0.0387 0.0346 0.0316 0.0292 0.0273 0.0258 0.0244

Manning roughness coefficient：n=0.010（vinyl chloride pipe）

diameter:D(mm)

vertical slope

■vertical interval of bypass pipedistance(m) 8.2 8.2 8.2 8.2 8.2 8.2 8.2 8.2inclination 300 400 500 600 700 800 900 1000verticalinterval(m) 0.027 0.021 0.016 0.014 0.012 0.010 0.009 0.008


Annex- 4

Facilities Construction Conditions


- 1 -

Facilities construction conditions is shown below.

Before condition

Welding of permeable sheet

Removal asphalt

Figure 4-1(1) Condition of construction Facilities(1)


- 2 -

excavation

crushed stone setting

Setting Munhall

Figure 4-1(2) Condition of construction Facilities(1)


- 3 -

Install plastic material (07,Nov 2012)

Install plastic material (07,Nov 2012)

back-filling

Figure 4. 1(3) Condition of construction Facilities(3)


- 4 -

surface compaction

back-filling

temporary enclosure and condition of construction area



- 5 -

Turfing work

water channel work (Grating)

Setting the triangle notch (Inflow)



- 6 -

Setting the triangle notch (Outflow)

Setting pipe

Setting box



- 7 -

Setting box

Condition of existing drainage joint

Munhall of inflow



- 8 -

Inflow pipe setting

Munhall of outflow

Outflow pipe setting

Figure 4. 1 (8) Condition of construction Facilities(8)


Annex- 5

Sheet for Monitoring


- 1 -

1. Data sheet of Monitoring

Result of monitoring shall be written down to data sheet (form) of Monitoring. An Example of data sheet of Monitoring is shown below.

Table 1-1 Example of Rainfall hourly record sheet

D A

T E

12

34

56

78

910

1112

1314

1516

1718

1920

2122

2324

2526

2728

2930

31

0.00

1:00

2:00

3:00

4:00

5:00

6:00

7:00

8:00

9:00

10:0

0

11:0

0

12:0

0

13:0

0

14:0

0

15:0

0

16:0

0

17:0

0

18:0

0

19:0

0

20:0

0

21:0

0

22:0

0

23:0

0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.00

Mo

nth

ly T

ota

l

RA

INF

AL

L D

AT

A (

In B

BW

S )

PERI

OD

: JAN

UARY

201

3

TIM

E

Min

imu

m

Ma

xim

um

Da

ily

To

tal


- 2 -

Table 1-2 Example of Rainfall record sheet

D A T E1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

0.00

0:10

0:20

0:30

0:40

0:50

1.00

1:10

1:20

1:30

1:40

1:50

2:00

2:10

2:20

2:30

2:40

2:50

3:00

3:10

3:20

3:30

3:40

3:50

4:00

4:10

4:20

4:30

4:40

4:50

5:00

5:10

5:20

5:30

5:40

5:50

6:00

6:10

6:20

6:30

6:40

6:50

7:00

7:10

7:20

7:30

7:40

7:50

8:00

8:10

8:20

8:30

8:40

8:50

9:00

9:10

9:20

9:30

9:40

9:50

10:00

10:10

10:20

10:30

10:40

10:50

11:00

11:10

11:20

11:30

11:40

11:50

12:00

12:10

RAINFALL DATA ( In BBWS )PERIOD : JANUARY 2013

TIME


- 3 -

Table 1- 3 Example of Discharge observation record sheet

Survey point

Time Time Time Time

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

Remarks Column

Water

level(h)

(m)

Water

level(h)

(m)

Water

level(h)

(m)

Water

level(h)

(m)

　Form of triangular notch

The start time ：～The end time ： Examination time Total

observation

Facilities form

Facilities size(m) 　Ｈ＝

Data Sheet of Monitoring （Channel）

Date / / /　Weather： sketch map Check of photo

present situ

Adress

　Ｂ＝　Ｄ＝

ｈ

H

Ｂ


- 4 -

Survey point

Time Time Time Time

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

Facilities form

Water

level(h)

(m)

Water

level(h)

(m)

　Ｈ＝　Ｂ＝　Ｄ＝

Water

level(h)

(m)

Water

level(h)

(m)

～The end time

/ / /　Weather：

：

Facilities size(m)

The start time

Adress

Date

Remarks Column

： Examination time

Data Sheet of Monitoring （triangular　notch）

Check of photo


Total

sketch map

present situ

observation

ｈH

Ｄ

Ｂ


- 5 -

Survey point

Time Time

9:00 0.000 0.000 0 ：

9:10 0.001 0.000 0.001 ：

9:20 0.003 0.000 0.003 ：

9:30 0.007 0.000 0.007 ：

9:40 0.010 0.000 0.01 ：

9:50 0.013 0.000 0.013 ：

10:00 0.017 0.000 0.017 ：

10:10 0.025 0.000 0.025 ：

10:20 0.033 0.000 0.033 ：

10:30 0.040 0.001 0.039 ：

10:40 0.050 0.010 0.04 ：

10:50 0.075 0.075 0 ：

11:00 0.100 0.100 0 ：

11:10 0.075 0.075 0 ：

11:20 0.050 0.050 0 ：

11:30 0.040 0.040 0 ：

11:40 0.033 0.033 0 ：

11:50 0.025 0.025 0 ：

12:00 0.017 0.017 0 ：

12:10 0.013 0.013 0 ：

12:20 0.010 0.010 0 ：

12:30 0.007 0.007 0 ：

12:40 0.003 0.003 0 ：

12:50 0.001 0.001 0 ：

13:00 0.000 0.000 0 ：

：：

：：

：：

：：

：：

Remarks Column

Qout

(m3/s)

Qout

(m3/s)

Qin

(m3/s)

Effect

(m3/s)

Qin

(m3/s)

Effect

(m3/s)



Calculation Sheet of Monitoring （effect of decrease of peak discharge）


present situ

Adress observation

Facilities form

Facilities size(m) 　Ｈ＝　Ｂ＝　Ｄ＝

ｈH

Ｄ

Ｂ


- 6 -

Table 1-4 Example of Water Level Record Sheet

Survey point

Time Time Time Time

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

observation well

㎝

Remarks Column

Water

level(h)

(m)

Water

level(h)

(m)

Water

level(h)

(m)

Water

level(h)

(m)

　Digging depth of an observation well


Observation

Facilities form


Data Sheet of Monitoring （ observation well ）


present situ

Adress

ｈ

H


- 7 -

2. Calculation sheet of Effect of RSIF

An Example of calculation sheet of effect of RSIF is shown below.

Table 2-1 Example of Calculation sheet of Effect of decrease of peak discharge

① ② ③=①-②

InflowbeforeControl

aftercontrol

Effect

m3/s

0.12125 0.068142 0.053108 0.0531 m3/s Effect of decrease for peak discharge43.80 ％ Rate of decrease for peak discharge

0 0 0.0000 0.00010 0.00078 0.0008 0.00020 0.00082 0.0008 0.00030 0.00087 0.0009 0.00040 0.00092 0.0009 0.00050 0.00097 0.0010 0.00060 0.00103 0.0010 0.00070 0.0011 0.0011 0.00080 0.00117 0.0012 0.00090 0.00126 0.0013 0.000

100 0.00134 0.0013 0.000110 0.00144 0.0014 0.000120 0.00156 0.0016 0.000130 0.00168 0.0017 0.000140 0.00182 0.0018 0.000150 0.00198 0.0020 0.000160 0.00216 0.0022 0.000170 0.00236 0.0024 0.000180 0.0026 0.0026 0.000190 0.00287 0.0029 0.000200 0.00319 0.0032 0.000210 0.00357 0.0036 0.000220 0.00401 0.0040 0.000230 0.00454 0.0045 0.000240 0.00519 0.0052 0.000250 0.00599 0.0060 0.000260 0.00699 0.0070 0.000270 0.00825 0.0083 0.000280 0.0099 0.0099 0.000290 0.01209 0.0121 0.000300 0.0151 0.0151 0.000310 0.01939 0.0194 0.000320 0.02581 0.0258 0.000330 0.03604 0.0360 0.000340 0.05384 0.0366 0.017350 0.08903 0.0366 0.052360 0.12125 0.0366 0.085370 0.068142 0.0681 0.000380 0.04361 0.0436 0.000390 0.03029 0.0303 0.000400 0.02226 0.0223 0.000410 0.01704 0.0170 0.000420 0.01347 0.0135 0.000430 0.01091 0.0109 0.000440 0.00902 0.0090 0.000450 0.00758 0.0076 0.000460 0.00646 0.0065 0.000470 0.00557 0.0056 0.000480 0.00485 0.0049 0.000490 0.00426 0.0043 0.000500 0.00378 0.0038 0.000510 0.00337 0.0034 0.000520 0.00302 0.0030 0.000530 0.00273 0.0027 0.000540 0.00248 0.0025 0.000550 0.00226 0.0023 0.000560 0.00206 0.0021 0.000570 0.0019 0.0019 0.000580 0.00175 0.0018 0.000590 0.00162 0.0016 0.000600 0.0015 0.0015 0.000610 0.00139 0.0014 0.000620 0.0013 0.0013 0.000630 0.00121 0.0012 0.000640 0.00114 0.0011 0.000650 0.00107 0.0011 0.000660 0.001 0.0010 0.000670 0.00095 0.0010 0.000680 0.00089 0.0009 0.000690 0.00084 0.0008 0.000700 0.0008 0.0008 0.000710 0.00076 0.0008 0.000720 0.00074 0.0007 0.000

0

100

200

300

400

500

6000.00

0.02

0.04

0.06

0.08

0.10

0.12

0.14

0.16

0.18

0.20

0 60 120 180 240 300 360 420 480 540 600 660 720

mm/h

m3/s

min.

rainfallintensity(mm/h)

Inflow

Outflow


- 8 -

Table 2-2 Example of Calculation sheet of Effect of infiltration

Survey point

Time

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

present situ

Adress

Calculation Sheet of Monitoring （ Effect of Infitration ）


Observation

Facilities form


Water

level(h)

(m)

①Water

level(△V)

(m3)

③Qout

(m3/s)

infiltration

④-①(m3)



observation well

㎝

Water

level(△h)

(m)

②Qin

(m3/s)

④=(②-③)*Time(m3)

ｈ

H


- 9 -

3. RSIF Inventory

Table 3-1 Example of RSIF inspection sheet

Inspection date Day / Month / Year Name of inspector Seal of

responsible person

Inspection place First-aid measures Yes or No

General evaluation of inspection

Emergency measures are required. Follow-up check is required. No problems

Type Inspection result

RSIF Appearance Displaced cover, Damage, Depression of peripheral areas, Overflow, Others ( )

Gutter

Appearance Displaced cover, Damage, Depression of peripheral areas, Others ( )

Inside Dirt, Leaves, Sediment (Deposit height: cm), Others ( )

Anti-clogging device Fall, Loss, Damage, Clogging

Measures required and measures taken


- 10 -

Table 3-2 Example of RSIF Inventory

Date: February 19, 2013 Revised Date: Name of facility RSIF, BBWS Ciliwung- Cisadane Name of installing agencies BBWS Ciliwung-Cisadane Office and JICA Location Premises of BBWS Ciliwung-Cisadane Office Purpose of installation Identify an effect of flood controll and maintenanece of facility Construction Period October, 2012 – December, 2012 Name of builder BBWS and JICA Person responsible for maintenance

Fill this column by Office

Type and scale of infiltration facility

9m × 9m × 1.33 m (in depth) Function:Storage and Infiltration

Volume for Storage: 102 m3 with Plastic Rainwater Infiltration and Storage Method (PRISM)

Target rainwater and water collecting area

0.5 ha

Surface geology - Groundwater level - Permeability Test method By constant test permeability test

Permeability Coefficient (cm/sec)

K0 = 1.2 ×10 -3

Design infiltration rate

Peripheral land use status Parking space for construction machineries

General description of facility (facility layout, facility structure drawing)


Annex- 6

Monitoring and Maintenance Manual for Rainwater Storage Infiltration Facility (RSIF)

Directorate General of Water Resources, Ministry of Public Works Republic of Indonesia

THE PROJECT FOR

CAPACITY DEVELOPMENT OF

JAKARTA COMPREHENSIVE FLOOD MANAGEMENT

IN INDONESIA

MONITORING AND MAINTENANCE MANUAL

FOR RAINWATER STORAGE INFILTRATION

FACILITY (RSIF)

OCTOBER, 2013

JAPAN INTERNATIONAL COOPERATION AGENCY YACHIYO ENGINEERING CO., LTD.

The Project for Capacity Development of Jakarta Comprehensive Flood Management in Indonesia


i



Table of Contents CHAPTER 1 The Plan and the Construction of the RSIF ............................................................... 1-1

1.1 The Purpose of the RSIF ............................................................................................ 1-1 1.2 Select and Size of Runoff Control Facility ................................................................ 1-2

1.2.1 Category and Type of Runoff Control Facilities ........................................................ 1-2 1.2.2 Select of RSIF ............................................................................................................ 1-3 1.2.3 The Size of RSIF ....................................................................................................... 1-4

1.3 Design of Facility ...................................................................................................... 1-7 1.4 Estimation of Unit Design Infiltration Rate ............................................................. 1-10

1.4.1 Estimate of Unit Design Infiltration Rate of RSIF .................................................. 1-10 1.5 Evaluation of Runoff Control Effect ........................................................................ 1-12

1.5.1 Summary of the Effect of Facility ........................................................................... 1-12 1.6 Points of Concern for Design of Facilities ............................................................... 1-13

CHAPTER 2 Monitoring Manual for Rainwater Storage Infiltration Facility (RSIF) .................... 2-1 2.1 Monitoring Plan ......................................................................................................... 2-1

2.1.1 Purpose of Monitoring ............................................................................................... 2-1 2.1.2 Monitoring Items ....................................................................................................... 2-1 2.1.3 Method of Monitoring ............................................................................................... 2-2

2.2 Evaluation of Flood Control Effect ........................................................................... 2-7 2.2.1 Evaluation on Effect of Decrease for Peak Discharge ............................................... 2-7 2.2.2 Verification of the effectiveness for the storage and infiltration (the effectiveness for the total flow amount reduction) .................................................................................................. 2-7 2.2.3 Verification of the effectiveness for the infiltration (the groundwater recharge volume) 2-8 2.2.4 Verification for the runoff coefficient variation ......................................................... 2-8

2.3 Maintenance for the RSIF .......................................................................................... 2-9 2.3.1 Purpose ...................................................................................................................... 2-9 2.3.2 Items to be Considered for Maintenance ................................................................... 2-9

Annex-1 Evaluation of runoff control effect Attachment

1. Data sheet of Monitoring 2. Calculation sheet for Effect of RSIF 3. RSIF Inventory



ii

List of Figures and Tables List of Figures

Figure 1.2-1 Category and Type of Runoff Control Facilities ................................................... 1-2 Figure 1.2-2 Plastic Void Storage Facility ................................................................................. 1-3 Figure 1.2-3 Design of Rainwater Storage Infiltration Facility ................................................. 1-5 Figure 1.2-4 Rainwater Storage Infiltration Facility (Image) .................................................... 1-5 Figure 1.2-5 General idea of hydrology and hydraulics of runoff control ................................ 1-6 Figure 1.3-1 RSIF construction area (outline) ........................................................................... 1-7 Figure 1.3-2 Plan ....................................................................................................................... 1-8 Figure 1.3-3 Plan（Detail） ..................................................................................................... 1-9 Figure 1.3-4 Cross Section ........................................................................................................ 1-9 Figure 1.5-1 Result of runoff control analysis(1)（W=1/2, Bypass flow Q=0.0346m3/s, D250,

I=1/500） ........................................................................................................................... 1-12 Figure 2.1-1 General Monitoring Plan for RSIF ....................................................................... 2-1 Figure 2.1-2 Typical Section for Monitoring Items at RISF ..................................................... 2-2 Figure-2.1-3 Monitoring Water Level at the Channel (Q1) ....................................................... 2-2 Figure 2.1-4 Installation Condition of Channel ......................................................................... 2-3 Figure 2.1-5 Monitoring Water Level at the Notch Located in the Channel (Q2,Q3) ............... 2-3 Figure 2.1-6 Installation Condition of Triangle Notch (Right: Inflow, Left: Outflow) ............. 2-3 Figure 2.1-7 Schematic Figure for Explanation from Water level to Discharge Condition on

Channel ................................................................................................................................. 2-4 Figure 2.1-8 Schematic Figure for Explanation from Water level to Discharge Condition on

Triangle Notch (Angle: 45 Degrees) .................................................................................... 2-4 Figure 2.1-9 Measuring Instrument for Water level .................................................................. 2-5 Figure 2.1-10 Monitoring Water level in the Monitoring Well at RSIF .................................... 2-6 Figure 2.1-11 Location of Monitoring Well .............................................................................. 2-6 Figure 2.2-1 Effect of Decrease for Peak Discharge (Image by Simulation) ............................ 2-7 Figure 2.2-2 Image of Verification for the effectiveness ........................................................... 2-8

List of Tables

Table 1.2-1 Features of void storage infiltration with plastic material ...................................... 1-4 Table 1.4-1 Condition of Estimate ........................................................................................... 1-10 Table 1.4-2 Calculation Result of specific infiltration ............................................................ 1-10 Table 1.4-3 Calculation formulas for specific infiltration(1)................................................... 1-11 Table 1.5-1 Result of calculate ................................................................................................ 1-12 Table 2.3-1 Description of Functional Inspection and Safety Inspection ................................. 2-9 Table 2.3-2 Facility Cleaning for Function Recovery ............................................................. 2-10



1-1

CHAPTER 1 The Plan and the Construction of the RSIF

1.1 The Purpose of the RSIF

With the urbanization of the Ciliwung River basin, the retention/retarding function of the Ciliwung River basin has decreased, the discharge flow has increased and flooding damage has increased remarkably. Consequently, it is urgently required to implement flood prevention measures.

The purpose of this Pilot Project is to install Rainwater Storage Infiltration Facilities (herein after called as “ RSIF” ) and identity its effects for flood on a experimental basis, those are applied in Japan as a flood prevention measure, and to transfer of technology about the planning, design and evaluation method of the flood prevention facilities through monitoring effectiveness for flood prevention.

The construction of the RSIF began on September 10, 2012 and was completed on December 8, 2012. The monitoring of effectiveness is due to commence in this coming rainy season.

The rainwater percolates down through the soil and evaporate to the air or discharges it to rivers for many years. When the ground surface is covered with concrete or asphalt with urbanization, this causes flooding in urban areas owing to the detraction of rainwater infiltration in a localized downpour. RSIF have received attention recently to improve these serious situation. These facilities prevent the rainwater from overflowing on the ground by getting the rainwater to sink into the soil and by retaining the rainwater on the land surface or in the underground.

These facilities get people’s attention from the point of making efficient use of water resources in addition to the disaster damage prevention function.



1-2

1.2 Select and Size of Runoff Control Facility

1.2.1 Category and Type of Runoff Control Facilities

Flood Prevention Facility is divided into two (2) groups, Storage Facility and Infiltration Facility, and Storage Facility is classified by Onsite Storage Facility and Off-site Storage Facility by the difference in catchment area. Infiltration Facility as the onsite facility is classified by Water-spreading Method, this method spreads rainwater into the underground, and Well Method.

The purpose of the storage facility is to reduce discharge flow by time differential discharge to sewers /rivers through retaining of the rainwater on the land surface or in the underground. This facility includes Surface Storage type and Underground Storage type. The surface storage type temporarily retains the water using an open space such as a parking lot/a playground, and releases the water after rains. The underground storage type uses concrete or plastic storage tanks constructed below a building/a parking lot.

Infiltration Facility releases the water into the underground. There are two (2) ways to release the water into the underground, one of them from the land surface plane such as water-permeable paving, infiltration pond and gravel void infiltration, and the other from points/lines on the land surface such as infiltration box, infiltration trench, road infiltration box and infiltration side ditch. These facilities are useful for flood prevention and moreover, there are some facilities to solve the temperature rising on roads surface such as an urban heat island phenomenon in summer.

Flood Prevention Facilities are classified by the storage facilities and the infiltration facilities as shown in Figure 1.2-1,

Figure 1.2-1 Category and Type of Runoff Control Facilities

Rainfall Storage Infiltration Facility

Rainfall Storage

Rainfall Infiltration Facility

On-Site Storage

Off-Site Storage

Void storage infiltration

/Rainwater storage at public land use (Park, green belt, school ground, public space)

/Storage facility on land development area (Space between buildings, Parking lot)

Storage at garden in houses (Rainwater storage tank ,Underground pool

Water-spreading method

Well method

Infiltration box Infiltration trench Infiltration pavement Infiltration gutter Infiltration pond

Wet well Dry well

Flood Control Basin /Multi-purpose /Flood control green zone

storm-water reservoir for flood control Disaster prevention detention pond detention pond for large scale development

Rainwater facility on individual

River basin storage facility



1-3

1.2.2 Select of RSIF

Void Storage Infiltration Facility, which has both the water storage function and the infiltration function in addition to a relatively high flood prevention effectiveness, is selected as the pilot facility in this project. Void Storage Infiltration Facility leads the water into tanks below the ground and percolates the water into the soil through the side faces and the undersurface. There are some cases in which storage tanks constructed in the space utilize rainwaters effectively. Recently the tank built of plastic materials with high porosity (more than 90 percent) has increased. The underground void storage infiltration facility built of plastic materials has become widespread rapidly in Japan, and also the technical development on it has progressed. With due regard to this situation, the void storage infiltration built of plastic materials is selected as the flood prevention pilot facility in this project with the object of introducing Japanese up-to-date technology. The record performance of the underground void storage infiltration facility built of plastic materials in Japan reached to 160 million m2 (as of the 2007 fiscal year) and is increasing year by year. According to the classification by application on the execution ratio of this facility, the largest one is commercial facilities with one third of the total, and after that the housing, the school, the park and the road. This facility has spread over wide-ranging field as the others amount to one third of the total.

The storage infiltration facility to be constructed in this project has its own unique character, that is the utilization of recycling of plastics. As a result of this, it is possible to secure 90 percent or more void rate and to be expected to obtain a high degree of effectiveness with the small scale facility. This means that the new type facility can obtain the same effectiveness at one third scale of the old type in the past, which used gravel/glass block and have about 30 percent of void rate. And moreover, it is a distinguishing feature to make use of the upper part of the facility for a park or a parking lot. The features of plastic materials are shown below.

Figure 1.2-2 Plastic Void Storage Facility

Plastic Material(Void Ratio

is 95 %)

Plastic Void Storage Facility(Under Construction)

After completion（used as a park）



1-4

Table 1.2-1 Features of void storage infiltration with plastic material

Item Contentsa) High Void Ratio ・ High Void Ratio can be maintained by intersecting it.

・ Reduce the amount of digging. ・ Digging is small.

b) Time saving

・ Installation can be done only by hand.・ Compared to using concrete no need curing time. ・ No need heavy equipment

c) Heavy load capacity design ・ Load of 25 ton truck in vertical direction d) Easy installation ・ No fixing material is required.

・ Installation speed is quick. e) No pollution ・ Excellent chemical and water resistant, do not pollute the

water.d) Compact Storage ・ It can be easily stored and reduces storage space at the site. 1.2.3 The Size of RSIF

The size and form of RSIF is shown below.

The RSIF is to be constructed as a tentative facility with 9 m (B ) x 9 m (W) x 1.33 m (H), and it has a purpose of transferring of technology about the design and construction method for the storage infiltration facility, and monitoring effectiveness.

The earth covering of the upper of the facility is 60 cm or more in thickness to enable a 25ton truck/a heavy machine to pass on it.

The waterway and drainage will be constructed around the facility, the waterway leads floods to the facility and the drainage drains water to the lower from it.

Because that the depth of the drainage is 50 cm and that of facility bottom is 1.5 m, the water cannot be drained in free fall. The rainwater is to be discharged from the facility bottom.

In case of leading floods in their early stages, it cannot control floods effectively because of the facility being full of water before floods reaching the peak. Therefore, a side overflow weir is to be set up to bring in the floodwater upwards undeveloped rainwater and that not exceeding undeveloped rainwater is bypassed to the lower.

The required volume of the facility is 250 m3 on the assumption that this facility deals with 50 mm/hr. However this time, the facility volume is determined 100 m3, which treats 20 mm/hr.

M

Sa

The Project f

Fig

Fi

Qc

anhole

and or Gravel

for Capacity

Monitori

gure 1.2-3

igure 1.2-4

Developmen

ing and Maint

Design of R

Rainwater

Qp

V

nt of Jakarta

tenance Manu

1-5

Rainwater S

r Storage In

Comprehens

ual for Rainwa

torage Infilt

filtration Fa

Qin

ive Flood Ma

ater Storage In

tration Faci

acility (Imag

Manhole

Drainage Channel

Management in

Infiltration Fa

ility

ge)

Qf

Q =f・r・A

Drainag

l

n Indonesia

cility (RSIF)

ge pipe



1-6

Figure 1.2-5 General idea of hydrology and hydraulics of runoff control In consideration that the storage infiltration facilities are to be spread over the catchment area, it is required to design the facility, at the same time it is necessary to evaluate the flood control effect on a river engineering project.

The general idea for inflow, storage, infiltration and outflow in the catchment area are shown in.Figure1.2-5. Each facility conducts flood prevention in their assigned area.

Qp(infiltration）+Q

f

Q

t

V=Storage Volume

Inflow Hydrograph

Outflow Hydrograph

V

Qc（Peak Discharge of Outflow）



1-7

1.3 Design of Facility

Facilities scale is 9m (width) *9m (length) *1.33m (7 levels deep).

Figure 1.3-1 RSIF construction area (outline)

RSIF (Rainwater Storage and Infiltration Facility)

Catchment (0.5ha)



1-8

Figure 1.3-2 Plan

The Project ffor Capacity

Monitori

Developmen

ing and Maint

Figure 1.

Figure 1

nt of Jakarta

tenance Manu

1-9

.3-3 Plan

1.3-4 Cros

Comprehens

ual for Rainwa

（Detail）

s Section

ive Flood Ma

ater Storage In

Management in

Infiltration Fa

n Indonesia

cility (RSIF)



1-10

1.4 Estimation of Unit Design Infiltration Rate

1.4.1 Estimate of Unit Design Infiltration Rate of RSIF

(1) Condition of Estimate for Facility

Based on the In situ permeability test, saturated hydraulic conductivity of soil (k0) was set as below.

Table 1.4-1 Condition of Estimate

Item Value Remarks k0: Saturated hydraulic conductivity of soil

1.2×10-3cm/s ＝4.3×10-2m/hr

From result of In-situ Permeability test

H:Design head H=1.33m L:Facility length L=9.0m W:Facility width W=9.0m C: Various influence coefficient C=0.81

(2) Estimation of unit design infiltration rate of infiltration facilities(Q)

Unit design infiltration rate of infiltration facilities is estimated using the following formula: The result of estimate is as follows Q=C×Qf ：Q Unit design infiltration rate of infiltration facilities ：Qf Standard infiltration rate of infiltration facilities ：C Various influence coefficient (usually 0.81) Qf=k×kf ：Qf Standard infiltration rate of installed facilities (m3/hr per 1 m, 1 unit, or 1 m2 of infiltration facilities) ：k Saturated hydraulic conductivity of soil (m/hr) ：Kf Specific infiltration of installed facilities (m2)

Q (m3/hr) = C* Qf= C* K0 * Kf ＝0.81 * 4.3×10-2m/hr * 210.0 = 7.3 (m3/hr) Specific infiltration of installed facilities of pilot facility is calculated by a value of a W=5 m and W=10 m cases than the following formula, so a value of W=9 m case is calculated by distributing two values proportionally. （Cf. Table 1.4-3）

Table 1.4-2 Calculation Result of specific infiltration

Facility Width(m)

W=5m W=10m W=9m

Basic formula

Kf=(aH+b)*L

a a=8.83*X-0.461 X=L/W=9m/9m =1.0 a = 8.83

a=7.88*X-0.446 X=L/W=9m/9m =1.0 a = 7.88

b b = 7.03 b = 14.00 Kf (8.83*1.33+7.03)*9

= 169.0 (7.88*1.33+14.00)*9 =220.3

=169.0+(220.3-169.0)*(9-5)/(10-5) =210.0

Remarks Calculated by W= 5 and 10

：sourcefor Rainw

The Project f

T

Engineeringwater Storag

for Capacity

Monitori

Table 1.4-3

g Guideline fge and Infiltr

Developmen

ing and Maint

Calculation

for Rainwateation Techno

nt of Jakarta

tenance Manu

1-11

n formulas f

er Infiltrationology and In

Comprehens

ual for Rainwa

for specific i

n Facilities Sfrastructure D

ive Flood Ma

ater Storage In

infiltration(

urvey and PDevelopmen

Management in

Infiltration Fa

(1)

Planning / Asnt Institute - J

n Indonesia

cility (RSIF)

ssociation Japan

1.5

1.5.1

The calcula

1) R

Calcu Pilot of 2 yeaA reducOutflowdevelopIn addifacility

Retu

①In② Ocontr③Ef④Ef

Figure

m3/s0.12125


The Project f

Evalu

Summ

outline of cation is shown

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y become fill

urn period (ye

flow (m3/s) Outflow afterol(m3/s) ffect (m3/s) ①ffect (％) ③

e 1.5-1 Res

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

W

for Capacity

Monitori

uation of Ru

mary of the E

calculation ren in the anne

culation

t on effect offfective in red

rate is calculaoff control (=△Q=0 policy s no runoff cwith water b

ear)

er runoff

①-② ③/①*100

sult of runo

m3/s m33 0.08462 0.0

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/2

Developmen

ing and Maint

noff Contro

Effect of Fac

esult on effeex.

f facility is shducing peak

ated as 43,8=0,068(m3/s)is secured.

control effecbefore peak d

Table 1.5-

2

0.12125 0.06814

0.05311

43.8

ff control an

3/s m3/s03151 0.05311

⑥Effect　1

④-⑤


⑤flowternofftrol

nt of Jakarta

tenance Manu

1-12

ol Effect

cility

ect of the fa

hown Table flow in 0.06

8%. )) is less tha

ct for the raindischarge ou-1 Result o

5

0.170490.17049

0.00000

0.0

nalysis(1)（I=1/500）

(%) (m3)62.8% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

Comprehens

ual for Rainwa

acility is as

1.5-1 and Fig8(m3/s) from

an 0.076(m3/

n is higher thtbreak.

of calculate

10

0.238350.23835

0.00000

0.0

W=1/2, Byp

m3/s.0 0.08974

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

ive Flood Ma

ater Storage In

follows. Th

gure 1.5-1. m 0.121(m3/s)

s) of peak fl

han 5 year re

25

5 0.2415 0.241

0 0.000

0.0

pass flow Q=

(%) m3/s74.0% 0.12125


D

⑩fect(％)

⑨/①*100

ss

Management in

Infiltration Fa

he detail of

) for the retu

flow discharg

eturn period

5

42 0.3042 0.30

000 0.00

0

=0.0346m3/s,

m3/s m3/s0.06814 0.053

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)


Downstream of RS

n Indonesia

cility (RSIF)

result on

urn period

ge before

,because

50

0444 0444

0000

0.0

, D250,

(%)311 43.8%

t⑪

SIF

⑬Total

Effect(％)

⑫/①*100



1-13

1.6 Points of Concern for Design of Facilities

Based on the monitoring results, point of concern for design of facilities are shown in follows. (1) Selection for installation site of facility (2) Installation of screen (3) Measures for accumulated sediments and sediment inflow (4) Installation of permeable infiltration well (5) Measures for garbage inflow (6) Selection of backfilling materials

(1) Selection for installation site of facility

As results of monitoring, sediment inflow to channels, clogging by inflow of sediments, fallen leaves and garbage were remarkable at the screen. Therefore, it is necessary to check the situation on land use in upper basin or the nearby of facility when selecting of the site for facility. The important matters for selection of installation site are as follows. - Avoid the site where a lot of sediment flow in.

(For example, area which bare land spreads in the upper basin) - Avoid the site where many fallen leaves exist and no maintenance.

(2) Installation of screen

In order to maintain the facility function, it is important to install a screen in an inflow inlet so that neither sediments, nor fallen leaves, etc. may enter in facility. About the structure of screen, and the size of meshes of net, it is important to decide in consideration with fallen leaves flowing in. If the size of meshes of net is made fine too much, sediment flow into facility and inflow of fallen leaves can be prevented, and it is effective for maintenance of function, but it is assumed that clogging occurs frequently, and the number of times of cleaning increases, and the effect of facility does not operate at the time of a flood.

(3) Measures for accumulated sediment and sediment inflow

In order to reduce accumulated sediment and sediment inflow in channel, it is necessary to install small sand pocket in upstream of channel of facility. In addition, when examining small sand pocket, it is necessary to determine a size and an installation position so that it may be easy to carry out maintenance after installation.

(4) Installation of permeable infiltration well

Rainwater infiltration installed among channels linking to facility secures perviousness in the bottom.

It is for preventing becoming insanitary, such as water collecting and becoming a cause of generating of mosquitos by storing water after rainfall.

(5) Measures for garbage inflow

To prevent garbage flow into facility, inflow channel shall be covered by devises such as concrete lid or installing net in the under part of a grating lid etc. Moreover, it is also important to steer so that garbage may not be dumped around facility.

(6) Selection of backfilling materials

Decreasing of infiltration function was identified. It is possible to one of the causes of reduction that the backfilling material around facility was low permeability. Therefore, when using material for backfilling around facility, in case of low permeability materials, it will also examine using purchase materials with comparatively high permeability.



2-1

CHAPTER 2 Monitoring Manual for Rainwater Storage Infiltration Facility (RSIF)

2.1 Monitoring Plan

2.1.1 Purpose of Monitoring

The purpose of monitoring is to identify storage and infiltration effects on the rainwater storage infiltration facility called as “RSIF” constructed at the BBWS Ciliwung-Cisadane Office. This facility acts for flood control facility .

In this manual, an effect for the flood control of the RSIF shall be referred. 2.1.2 Monitoring Items

Monitoring items are shown as follows. a. Rainfall b. Discharge Inflow：Qin(Q1,Q2) c. Discharge Outflow：Qout(Q3) d. Storage Volume by measuring water level changes in the RSIF： V

General monitoring plan and typical section for RSIF are shown as follows.

Figure 2.1-1 General Monitoring Plan for RSIF

Qin=Q2 Qout=Q3

Water level

Qin=Q1



2-2

Figure 2.1-2 Typical Section for Monitoring Items at RISF

2.1.3 Method of Monitoring

(1) Rainfall

Rainfall shall be monitored at periodic intervals in the site of the BBWS Office. Taking into account the arrival time of the flood, rainfall data shall be monitored with time interval for 10 minutes or one hour. The example of rainfall record sheet is shown in the attachments.

(2) Discharge Inflow (Q1, Q2) and Discharge Outflow (Q3)

Discharge inflow (Q1,Q2) shall be monitored by measuring water level of scale and triangle notch located at the inflow channel as shown in Figure 2.1-3 - 2.1-6. Discharge outflow (Q3) shall be also monitored by measuring of water level at the triangle notch located drainage channel. Measuring water level shall be converted to discharge. Monitoring method for discharge is shown as follows. The example of discharge observation record sheet is shown in the attachments. a) Monitoring period：From start time of rainfall to decreasing water level at the drainage channel

after the end of rainfall or about 2 hours after the end of rainfall. b) Interval of Monitoring：10 minutes

c) Monitoring Method ：Visual monitoring d) Monitoring Procedure：Method of procedure in the case of visual monitoring is shown below.

1) If it rain, going to the point of the channel and triangle notch located at the inflow channel and drainage channel.

2) Monitoring of water level shall be started at the channel (scale) and the notches. (Refer to Figure 2.1-3～6)

3) Time for monitoring and water level with time interval 10 minutes at the channel and the both notches shall be indicated on the recording form.

4) Monitoring shall be continued until decreasing water level after the end of the rainfall.

Figure-2.1-3 Monitoring Water Level at the Channel (Q1)

Monitor this water level in cm at the channel

Fi

Fi

e) C

1) C C

The d A

B

The Project f

igure 2.1-5

igure 2.1-6

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2-4

h= Observation water level

The velocity (V (m/s)) is calculated by the following formula. V=1/n*R2/3*I1/2

n : Manning roughness coefficient=0.013 (Channel with lining/mortar) I : Incline=0.5％(1/200)（survey result） R : hydraulic radius = A /S (m)

A : Discharge area (m2)=B*h S ：wetted perimeter (m)=B+2*h

Figure 2.1-7 Schematic Figure for Explanation from Water level to Discharge Condition on Channel

2) Triangle Notch

Discharge Q = Qa + Qb Section ①

Qa=C*h5/2 C=1.350+0.004/h+(0.14+0.2/W1/2)*(h/B-0.09)2

Section ② Qb＝C*B*(h-W2)3/2 C=1.785+(0.0295/(h-W2) + 0.237*(h- W 2)/W)*(1+ε)

In addition, it is (W+W2) <1.0, ε=0

Figure 2.1-8 Schematic Figure for Explanation from Water level to Discharge Condition on Triangle Notch (Angle: 45 Degrees)

(3) Water Level changes in the RSIF

Water level changes within the RSIF shall be monitored at the monitoring well in the RSIF. a) Monitoring Period：During rainfall and period with stored water in the RSIF.

(24 hours later after the end of rainfall) b) Interval of Monitoring：

During rainfall: 10 minutes from the start of rainfall to about 2 hours after the end of rainfall

②

①W2



2-5

No rainfall : 1 hour, period with stored water in the RSIF. c) Monitoring method：Using monitoring instrument shown in Figure 2.1-9.

Figure 2.1-9 Measuring Instrument for Water level

d) Monitoring Procedures：Monitoring procedures are shown as below.

① Going to the point of the monitoring well ② Monitor water level before coming rainfall. (When there is storage of water in the RSIF,

monitor water level until the start time of rainfall with time interval one hour) ③ When rainfall is started, simultaneously with monitoring of water level in the RSIF,

monitoring of discharge inflow and outflow in channels shall be monitored. ④ Water level with interval 10 minutes and time of monitoring shall be recorded on the

recording form. ⑤ Monitoring shall be continued till water level decreases after the end of rainfall.

When there is no water in the drainage after rain, monitor water level with one hour interval.

Conversion method from water level to discharge flow: For converting water level to discharge, the following formula shall be used.

△V=△ｈ*(9*9*α)

V：Change of storage capacity（m3）ｈ：Change of water level(m)

α：Void rate（= 0,95）



2-6

Figure 2.1-10 Monitoring Water level in the Monitoring Well at RSIF

Figure 2.1-11 Location of Monitoring Well

Monitor this water level

ｈ

H

Record this water level

Monitoring Well



2-7

2.2 Evaluation of Flood Control Effect

2.2.1 Evaluation on Effect of Decrease for Peak Discharge

The effect of decrease for peak discharge and the rate of decrease for peak discharge shall be evaluated comparing hydrograph of discharge outflow after runoff control with hydrograph of discharge inflow showing below.

Discharge Inflow before runoff control (Qin) and Discharge Outflow after runoff control (Qout)

calculated by by the following formula . Qin=Q1 Qout=Q1-(Q2-Q3)

Effect of decrease for peak discharge = Qinp – Qoutp Qinp ：Peak Discharge Inflow before runoff control (m3/s) Qoutp：Peak Discharge Outflow after runoff control(m3/s)

Rate of decrease for peak discharge = (Qinp – Qoutp)/ Qinp The example of calculation sheet of effect of decrease for Peak discharge is shown in the

attachments.

Figure 2.2-1 Effect of Decrease for Peak Discharge (Image by Simulation)

2.2.2 Verification of the effectiveness for the storage and infiltration (the effectiveness for the total flow amount reduction)

The effectiveness for the storage and infiltration is estimated based on the inflow into the infiltration facility and the regulated outflow.

Effectiveness for the storage and infiltration (%) = Reduction amount of the total outflow / The inflow from upstream of the facility

= △V1 / △Va Reduction volume (m3) : △V1 = (ΣQin – ΣQout) where;

ΣQin：Total inflow volume (m3)

0

100

200

300

400

500

6000.00

0.02

0.04

0.06

0.08

0.10

0.12

0.14

0.16

0.18

0.20

0 60 120 180 240 300 360 420 480 540 600 660 720

mm/h

m3/s

min.

rainfallintensity(mm/h)Inflow

OutflowQinp

Qoutp

Effect of Decrease for Peak Discharge

2.2.3

The effedifferenc

Effe

whe

T

2.2.4

It canstrenuou(the runequation

runoff Whf QinP r A

The Project f

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2-2 Image

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2-8

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2-9

2.3 Maintenance for the RSIF

2.3.1 Purpose

The RSIF must be appropriately, efficiently, and economically maintained considering continuity and stability of permeability. At the RSIF, degraded infiltration function due to clogging can cause a facility to be submerged for a long time or cause an overflow outside the facility. When an overflow pipe is connected to the facility, it is difficult to evaluate degradation of function from appearance. To prevent this, facility structure and land use of the installation area must be well understood for maintaining the RSIF. In this way, degradation of permeability due to clogging must be prevented, and the function must be kept effective. The items to be considered for maintenance are as follows: 1) Maintenance of permeability

Measures to prevent clogging, cleaning method, frequency, and extending service life 2) Maintenance of infiltration facility

Inspection frequency, correcting displaced cover, repairing damage, repairing sunken ground, etc.

3) Economical maintenance Easy inspection, low cleaning frequency, easy cleaning, etc.

Considering the above, it is important to establish an appropriate control method and maintenance system.

2.3.2 Items to be Considered for Maintenance

(1) Functional Inspection and Safety Inspection

Two inspection methods which are functional inspection and safety inspection shall be considered in this manual. The purpose of the former is to check for conditions that might disturb the infiltration function, and the latter is performed to eliminate adverse influences on peripheral facilities as well as to keep the safety of users, walkers and traffic vehicles. In principle, periodic inspections should be performed once a year or more, before rainy season. If it is physically impossible to check all infiltration facilities, areas where sediment or water tends to gather are selected to reduce the frequency or the number of inspections. In this way, it is important to save manpower for inspections. Table 2.3-1 shows the classification of functional inspection and safety inspection.

Table 2.3-1 Description of Functional Inspection and Safety Inspection

Details Type Functional Inspection Safety Inspection

Inspection Items

•Depositing of sediment, dirt, fallen leaves •Clogging of dirt-removing filter •Submerging status •Sediment runoff status •Presence of intruding tree root

•Displacement of cover •Damage or deformation of facility•Sinking or depression of ground surface

Inspection Method

•Accumulation of sediment, dirt, etc. by visual check •Sediment deposition •Infiltration status

•By visual check

Period for Inspection

(Periodical inspection) •Inspection must be performed once a year or more before rainy season. •Inspection must be performed once for two weeks as rainy season. (Emergency inspection) •Period with heavy rainfall such as rainy season. •Warning issued of heavy rains and local flooding •After completion of earth work around the facility •Report from users is received.

Note: Arranged for this manual based on the Japanese Guideline for RISF (1997)



2-10

(2) Faclity Cleaning for Function Recovery

Periodical cleaning for RSIF shall be performed to recover the functions of the RSIF according to the inspection results. Details of cleaning are removal of sediment, dirt, fallen leaves, etc., removal of clogging substances from the anti-clogging device, and removal of tree roots. It is also important to clean peripheral areas of the facility. Attention shall be paid so that washing water does not enter the facility during cleaning. Table2.3-.2 shows cleaning method in facilities or parts of the RISF.

Table 2.3-2 Facility Cleaning for Function Recovery

Facility/Part Method in Details Period for cleanibg Explanation with Picture Channel & Box

Cleaning Digging out of sands and gravels, deposits and fallen leaves

Cleaning must be performed once a year before rainy season.

Cleaning must be performed when the sands sediment more than 3cm as rainy season.

Screen Remove deposits and fallen leaves by brushing


Cleaning must be performed once for two weeks when the inspection is performed at the same time as rainy season.

Grating and Cover

Cleaning Remove deposits and fallen leaves by brushing


Cleaning must be performed once for month as rainy season.



2-11

(3) Facility Repairing for RSIF

If the facility is damaged or depression or sinking of the ground occurs, it must be repaired. There are two cases requiring immediate repair to maintain safety and functions, and cases of later repair after monitoring conditions for a certain period. Items that cannot be repaired should be replaced or newly installed. If depression or sinking of the ground occurs, the cause and the affected area must be investigated, and appropriate countermeasures must be taken. Depression or sinking of the ground is often caused by incorrect backfilling or compaction after excavation, not by the infiltration facility itself. Attention must be paid so that identifying the cause is not limited only to the infiltration facility.

(4) Facility Inventory for RSIF

Facility inventory for RSIF shall be prepared by BBWS Ciliwung-Cisadane Office. Data on monitoring, drawings with design report for construction, pictures during construction and other information such as BQ and Cost estimate as well as unit price shall be arranged and filed. (Refer to Table-5 in Attachements)

(5) Maintenance Records

To correctly maintain the functions of the infiltration facility of the RSIF, it is important to continue the maintenance work. For this purpose, it is desirable to store inspection, cleaning, and repairing records as maintenance records.

The Project for Capacity Development of Jakarta Comprehensive Flood Management in Indonesia Monitoring and Maintenance Manual for Rainwater Storage Infiltration Facility (RSIF)

Annex


1

Annex-1

CHAPTER 1 Evaluation of runoff control effect

1.1 Evaluation of runoff control effect

1.1.1 Summary of the effect of facility

The storage infiltration facility is set up purposely to prevent the peak of a floodwater increases hand in hand with land-use change etc. Therefore an inspection of the flood prevention effectiveness of the pilot facility is as follows. 1) Evaluation method of an effect

The effectiveness of the facility can be inspected to compare the uncontrolled inflow (Qin:flow without facility) and the controlled outflow (Qout) at flooding time using below equation. The pilot facility in this project bypasses the flow not exceeding undeveloped floodwater to the lower. The inspection considers this bypass flow. Inflow(Qin) is calculate by rational formula. Out flow of after runoff control is calculated by following formula. Qout = Qout1 + Qout2 Qout2 = (Qin - Qout1) – Qi – Vi

：Qin Inflow(m3/s) ：Qout Outflow after runoff control(m3/s) ：Qout1 bypass flow(m3/s)

：Qout2 Outflow of at immediate down stream of Pilot facility(m3/s) ：Qi unit design infiltration rate(m3 ）/s ：Vi Storage(m3 ）/s ≦Vi Qi when Total of Storage Capacity is beyond facilities capacity. V is assumed V=0

Figure 1.1-1 Image of Evaluation method of an effect 2) condition of calculate

Condition of calculation is as follows. ・ Catchment Area： 0.5ha ・ Run- ：off Coefficient past 0.5(settlement) present 0.8(urban) ・ Flood Arrival Tim ：e tc=10minites (because catchment area is extremely small ）.

Pilot Facirity(RSIf) ・Qi: Effect of infiltration・Vi: Effect of Storage

Inflow

Bypass flow

Outflow after runoff control

Outflow of at immediate down

stream of Pilot facility

Inflow to Pilot facility

Qout

Qout1

Qin

Qout2 Qin- Qout1


2

・ Rainfall Curve: 12-hour middle concentration curve ・：、、、、Return Period 1/2 1/5 1/10 1/25 1/50 ・：Rainfall Intensity curve Pondok Betung Cileduk (Cf. Fifure 1.1-3）

Return Period 1/2 1/5 1/10 1/25 1/50 Rainfall Intensity curve

7122.2 t+55.264

4977.6 t0.9+24.497

2798.5 t0.8+6.736

3286.7 t0.8+8.817

2582.8 t3/4+3.803

Rainfall rate 109.1mm/hr 153.4 mm/hr 214.5 mm/hr 217.3 mm/hr 274.0 mm/hr ・：Strage capacity 102m2＝（9m×9m×1.33m ×0.95 Void ％）rate = 95 ・ Unit design infiltration rate： 0.00203m3/s ・ Method of Runoff Analysis： Rational method ・ Model of Infiltration ：Facility Fixed amount deduction model ・ Bypass flow： 0.038m3/2 (Maximum） The condition of bypass pipe is as follows. Pipe diameter: φ250(mm)

Pipe material : vinyl chloride pipe (Manning roughness coefficient=0.001) Gradient of pipe : 1/500

Discharge condition: full bobbin, maximum outflow =0.038m3/s (by Manning formula)

Figure 1.1-2 Basin Figure

RSIF (Rainwater Storage and Infiltration Facility)

Catchment (0.5ha)

The Project ffor Capacity Monitori

Developmening and Maint

Figure- 1.1

nt of Jakarta tenance Manu

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1-3 Rainfa

Comprehensual for Rainwa

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3) R

Resul Pilot for futuA reducOutflowdevelopIn addifacilityFacilitythe end

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①In② ocontr③eff④eff

Figure 1

m3/s0.12125


The Project f

esult of calc

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flow (m3/s) outflow afterol(m3/s)

ffect (m3/s) ①ffect (％) ③

1.1-4 Resu

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

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W

for Capacity Monitori

culation

tion of effectffective in redain fall. rate is 43,8%off control (=△Q=0 policy s no runoff cwith water b

lculated by ane.

er runoff

①-② ③/①*100

ult of runoff

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a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/2


t of facility isducing peak f

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control effectbefore peak dnother calcul

Table 1.1-

2

0.12125 0.06814

0.05311

43.8

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⑥Effect　1

④-⑤


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4

s shown Tablflow in 0,068

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-1 Result o

5

0.170490.17049

0.00000

0.0

alysis(1)（WI=1/500）

(%) (m3)62.8% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

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le 1.1-1 and8(m3/s) from

an 0.076(m3

n is higher thtbreak. n in this time

of calculate

10

0.238350.23835

0.00000

0.0

W=1/2、Byp

m3/s.0 0.08974

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⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas


Figure 1.1-4m 0.121(m3/s

/s) of peak

han 5 years re

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25

5 0.2415 0.241

0 0.000

0.0

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(%) m3/s74.0% 0.12125


D

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⑨/①*100

ss


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flow quantit

return period

alculation is

5

42 0.3042 0.30

000 0.00

0.0

=0.0346m3/s

m3/s m3/s0.06814 0.053

⑪Outflow

after

runoff

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ty before

d ,because

shown in

50

0444 0444

0000

、D250、

(%)311 43.8%

t⑪

SIF

⑬Total

Effect(％)

⑫/①*100

Figure 1

m3/s0.17049


m3/s0.23835


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1.1-5 Resu

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

W

W


ult of runoff

m3/s m33 0.13386 0.1

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

m3/s m33 0.20172 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/5

=1/10


control ana

3/s m3/s13386 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤

3/s m3/s20172 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤


5

alysis(2)（W=I=1/500）

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass


=1/5,1/10 By

m3/s.0 0.03663

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

m3/s.0 0.03663

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas


ypass flow Q

(%) m3/s21.5% 0.17049

⑩fect(％)

⑨/①*100

Dss ①


(%) m3/s15.4% 0.23835

⑩fect(％)

⑨/①*100

Dss ①



Q=0.0346m3/

m3/s m3/s0.17049 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)


m3/s m3/s0.23835 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



/s、D250、

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

Figure 1

m3/s0.24142


m3/s0.30444


The Project f

1.1-6 Resu

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

m3/s m3/s0.03460 0.0020

Rai

②Bypassflow

③Infiltra

tionVolume

W

W


ult of runoff

m3/s m33 0.20479 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

m3/s m33 0.26781 0.2

nfall Storage In

a ④Inflow to

RSIF

⑤OutfAftRunCont

W=1/25

=1/50


control ana

3/s m3/s20479 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤

3/s m3/s26781 0.00000


⑤flowternofftrol

⑥Effect　1

④-⑤


6

alysis(3)（W=I=1/500）

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass

(%) (m3)0.0% 102

⑦Effect1(％)⑥/④*100

⑧StoragVolume

lity + Bypass


=1/25,1/50 B

m3/s.0 0.03663

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas

m3/s.0 0.03663

gee

⑨Effect　2

①-⑤Ef2⑨*

RSIF+Bypas


Bypass flow Q

(%) m3/s15.2% 0.24142

⑩fect(％)

⑨/①*100

Dss ①


(%) m3/s12.0% 0.30444

⑩fect(％)

⑨/①*100

Dss ①



Q=0.0346m3

m3/s m3/s0.24142 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)


m3/s m3/s0.30444 0.000

Downstream of RS

⑪Outflow

after

runoff

control(R

SIF+Bypas

s)



3/s、D250、

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100

(%)000 0.0%

SIF

t⑪

⑬Total

Effect(％)

⑫/①*100


Attachments


1

1. Data sheet of Monitoring

Result of monitoring shall be written down to data sheet (form) of Monitoring. An Example of data sheet of Monitoring is shown below.

Table- 1 Example of Rainfall hourly record sheet

D A

T E

12

34

56

78

910

1112

1314

1516

1718

1920

2122

2324

2526

2728

2930

31

0.00

1:00

2:00

3:00

4:00

5:00

6:00

7:00

8:00

9:00

10:0

0

11:0

0

12:0

0

13:0

0

14:0

0

15:0

0

16:0

0

17:0

0

18:0

0

19:0

0

20:0

0

21:0

0

22:0

0

23:0

0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.0

0.00

Mo

nth

ly T

ota

l

RA

INF

AL

L D

AT

A (

In B

BW

S )

PERI

OD

: JAN

UARY

201

3

TIM

E

Min

imu

m

Ma

xim

um

Da

ily

To

tal


2

Table- 2 Example of Rainfall record sheet

D A T E1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

0.00

0:10

0:20

0:30

0:40

0:50

1.00

1:10

1:20

1:30

1:40

1:50

2:00

2:10

2:20

2:30

2:40

2:50

3:00

3:10

3:20

3:30

3:40

3:50

4:00

4:10

4:20

4:30

4:40

4:50

5:00

5:10

5:20

5:30

5:40

5:50

6:00

6:10

6:20

6:30

6:40

6:50

7:00

7:10

7:20

7:30

7:40

7:50

8:00

8:10

8:20

8:30

8:40

8:50

9:00

9:10

9:20

9:30

9:40

9:50

10:00

10:10

10:20

10:30

10:40

10:50

11:00

11:10

11:20

11:30

11:40

11:50

12:00

12:10

RAINFALL DATA ( In BBWS )PERIOD : JANUARY 2013

TIME


3

Table- 3 Example of Discharge observation record sheet

Survey point

Time Time Time Time

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

Remarks Column

Water

level(h)

(m)

Water

level(h)

(m)

Water

level(h)

(m)

Water

level(h)

(m)



observation

Facilities form


Data Sheet of Monitoring （Channel）


present situ

Adress

　Ｂ＝　Ｄ＝

ｈ

H

Ｂ


4

Survey point

Time Time Time Time

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

Facilities form

Water

level(h)

(m)

Water

level(h)

(m)

　Ｈ＝　Ｂ＝　Ｄ＝

Water

level(h)

(m)

Water

level(h)

(m)

～The end time

/ / /　Weather：

：

Facilities size(m)

The start time

Adress

Date

Remarks Column

： Examination time

Data Sheet of Monitoring （triangular　notch）

Check of photo


Total

sketch map

present situ

observation

ｈH

Ｄ

Ｂ


5

Survey point

Time Time

9:00 0.000 0.000 0 ：

9:10 0.001 0.000 0.001 ：

9:20 0.003 0.000 0.003 ：

9:30 0.007 0.000 0.007 ：

9:40 0.010 0.000 0.01 ：

9:50 0.013 0.000 0.013 ：

10:00 0.017 0.000 0.017 ：

10:10 0.025 0.000 0.025 ：

10:20 0.033 0.000 0.033 ：

10:30 0.040 0.001 0.039 ：

10:40 0.050 0.010 0.04 ：

10:50 0.075 0.075 0 ：

11:00 0.100 0.100 0 ：

11:10 0.075 0.075 0 ：

11:20 0.050 0.050 0 ：

11:30 0.040 0.040 0 ：

11:40 0.033 0.033 0 ：

11:50 0.025 0.025 0 ：

12:00 0.017 0.017 0 ：

12:10 0.013 0.013 0 ：

12:20 0.010 0.010 0 ：

12:30 0.007 0.007 0 ：

12:40 0.003 0.003 0 ：

12:50 0.001 0.001 0 ：

13:00 0.000 0.000 0 ：

：：

：：

：：

：：

：：

Remarks Column

Qout

(m3/s)

Qout

(m3/s)

Qin

(m3/s)

Effect

(m3/s)

Qin

(m3/s)

Effect

(m3/s)



Calculation Sheet of Monitoring （effect of decrease of peak discharge）


present situ

Adress observation

Facilities form

Facilities size(m) 　Ｈ＝　Ｂ＝　Ｄ＝

ｈH

Ｄ

Ｂ


6

Table -4 Example of Water Level Record Sheet

Survey point

Time Time Time Time

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

：：：：

observation well

㎝

Remarks Column

Water

level(h)

(m)

Water

level(h)

(m)

Water

level(h)

(m)

Water

level(h)

(m)



Observation

Facilities form


Data Sheet of Monitoring （ observation well ）


present situ

Adress

ｈ

H


7

2. Calculation sheet of Effect of RSIF

An Example of calculation sheet of effect of RSIF is shown below.

Table -5 Example of Calculation sheet of Effect of decrease of peak discharge

① ② ③=①-②

InflowbeforeControl

aftercontrol

Effect

m3/s

0.12125 0.068142 0.053108 0.0531 m3/s Effect of decrease for peak discharge43.80 ％ Rate of decrease for peak discharge

0 0 0.0000 0.00010 0.00078 0.0008 0.00020 0.00082 0.0008 0.00030 0.00087 0.0009 0.00040 0.00092 0.0009 0.00050 0.00097 0.0010 0.00060 0.00103 0.0010 0.00070 0.0011 0.0011 0.00080 0.00117 0.0012 0.00090 0.00126 0.0013 0.000

100 0.00134 0.0013 0.000110 0.00144 0.0014 0.000120 0.00156 0.0016 0.000130 0.00168 0.0017 0.000140 0.00182 0.0018 0.000150 0.00198 0.0020 0.000160 0.00216 0.0022 0.000170 0.00236 0.0024 0.000180 0.0026 0.0026 0.000190 0.00287 0.0029 0.000200 0.00319 0.0032 0.000210 0.00357 0.0036 0.000220 0.00401 0.0040 0.000230 0.00454 0.0045 0.000240 0.00519 0.0052 0.000250 0.00599 0.0060 0.000260 0.00699 0.0070 0.000270 0.00825 0.0083 0.000280 0.0099 0.0099 0.000290 0.01209 0.0121 0.000300 0.0151 0.0151 0.000310 0.01939 0.0194 0.000320 0.02581 0.0258 0.000330 0.03604 0.0360 0.000340 0.05384 0.0366 0.017350 0.08903 0.0366 0.052360 0.12125 0.0366 0.085370 0.068142 0.0681 0.000380 0.04361 0.0436 0.000390 0.03029 0.0303 0.000400 0.02226 0.0223 0.000410 0.01704 0.0170 0.000420 0.01347 0.0135 0.000430 0.01091 0.0109 0.000440 0.00902 0.0090 0.000450 0.00758 0.0076 0.000460 0.00646 0.0065 0.000470 0.00557 0.0056 0.000480 0.00485 0.0049 0.000490 0.00426 0.0043 0.000500 0.00378 0.0038 0.000510 0.00337 0.0034 0.000520 0.00302 0.0030 0.000530 0.00273 0.0027 0.000540 0.00248 0.0025 0.000550 0.00226 0.0023 0.000560 0.00206 0.0021 0.000570 0.0019 0.0019 0.000580 0.00175 0.0018 0.000590 0.00162 0.0016 0.000600 0.0015 0.0015 0.000610 0.00139 0.0014 0.000620 0.0013 0.0013 0.000630 0.00121 0.0012 0.000640 0.00114 0.0011 0.000650 0.00107 0.0011 0.000660 0.001 0.0010 0.000670 0.00095 0.0010 0.000680 0.00089 0.0009 0.000690 0.00084 0.0008 0.000700 0.0008 0.0008 0.000710 0.00076 0.0008 0.000720 0.00074 0.0007 0.000

0

100

200

300

400

500

6000.00

0.02

0.04

0.06

0.08

0.10

0.12

0.14

0.16

0.18

0.20

0 60 120 180 240 300 360 420 480 540 600 660 720

mm/h

m3/s

min.

rainfallintensity(mm/h)

Inflow

Outflow


8

Table -6 Example of Calculation sheet of Effect of infiltration

Survey point

Time

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

：

present situ

Adress

Calculation Sheet of Monitoring （ Effect of Infitration ）


Observation

Facilities form


Water

level(h)

(m)

①Water

level(△V)

(m3)

③Qout

(m3/s)

infiltrat

ion

④-①(m3)



observation well

㎝

Water

level(△h)

(m)

②Qin

(m3/s)

④=(②-③)*Time(m3)

ｈ

H


9

3. RSIF Inventory

Table -7 Example of RSIF inspection sheet

Inspection date Day / Month / Year Name of inspector Seal of

responsible person

Inspection place First-aid measures Yes or No

General evaluation of inspection

Emergency measures are required. Follow-up check is required. No problems

Type Inspection result

RFIF Appearance Displaced cover, Damage, Depression of peripheral areas, Overflow, Others ( )

Gutter

Appearance Displaced cover, Damage, Depression of peripheral areas, Others ( )

Inside Dirt, Leaves, Sediment (Deposit height: cm), Others ( )

Anti-clogging device Fall, Loss, Damage, Clogging

Measures required and measures taken


10

Table -8 Example of RSIF Inventory

Date: February 19, 2013 Revised Date: Name of facility RSIF, BBWS Ciliwung- Cisadane Name of installing agencies BBWS Ciliwung-Cisadane Office and JICA Location Premises of BBWS Ciliwung-Cisadane Office Purpose of installation Identify an effect of flood controll and maintenanece of facility Construction Period October, 2012 – December, 2012 Name of builder BBWS and JICA Person responsible for maintenance

Fill this column by Office

Type and scale of infiltration facility

9m × 9m × 1.33 m (in depth) Function:Storage and Infiltration

Volume for Storage: 102 m3 with Plastic Rainwater Infiltration and Storage Method (PRISM)

Target rainwater and water collecting area

0.5 ha

Surface geology - Groundwater level - Permeability Test method By constant test permeability test

Permeability Coefficient (cm/sec)

K0 = 1.2 ×10 -3

Design infiltration rate

Peripheral land use status Parking space for construction machineries

General description of facility (facility layout, facility structure drawing)


Annex- 7

Detailed Design and Cost Estimation on Situ Improvement

Design of Spillway of Situ Cilodong

(1) Basic Condition

a) River

Ｂ＝Ｉ＝

Ｑ＝ｎ＝

b) Ground

t/m3

t/m3

°

c) Design Load

・Dead Load

Unit weight of masonry : kgf/m3

・Seismic Condition

ｋh＝

where,

ｋh : design lateral seismic coefficient

d) Heads

Bed Level Difference (Ｄ1) ｍ

Effective Dam Height (Ｄ2) ｍ

Water Cushion Depth (Ｄ3) ｍ

Total Head (Ｄ) ｍ

30

2,200

1.05

Following value was applied based on a design standard for irrigation inIndonesia.

Width

Discharge

1.8

2.86

γbw＝

φ＝

RoughnessCoefficient

γ＝SoilFrictionFactor

cohesive soil

0.5

0.75

0.30

1/120

0.017

1.8

1.0

ｍ

m3/s

Slope

Constants

0.00

0.12

1

(2) Design of Main Body and Water Cushion

a) Length of Water Cushion

(a) Range of Falling Water

(ⅰ) Discharge Condition

Design discharge:

Discharge per unit width :

ｑ＝Ｑ/Ｂ＝ 2.86/1.8＝

Critical velocity :

ｖc＝ｇｈc　＝ 9.8×0.64　＝ m/s

Critical depth :

ｑ

ｖc

Downstream uniform flow depth :

ｑ

ｖ2

Overflow situation

∴ｈc＋Ｄ1＋Ｄ2＝ 0.64＋0＋0.75＝＞

(ⅱ) Range of Falling Water

Ｗ/Ｄ＝4.3×(ｈc/Ｄ)0.81 ………（RAND's equation）

Ｗ： Water Cushion Length

Ｄ：ｍ

ｈc：ｍ

Ｗ＝4.3×(ｈc/Ｄ)0.81×Ｄ＝ 4.3×(0.64/1.05)^0.81×1.05＝ ⇒ ｍ

∴ｈc＝ｑ

1.6

Total Head

Critical Depth

2.50

2.86 m3/s

＝1.6

9.8

m3/s

ｇ

ｈ2＝＝ｑ

1/ｎ・ｈ22/3・Ｉ1/2

ｈc＝ｑ

ｇｈc

＝＝

ｍ

1.39 0.48ｈ2＝

1/0.017×(1/120)^1/2

1.6＝

0.64 ｍ

4.00

Because the overflow situation is complete overflow, water cushion shall bedesigned using design discharge.

ｈ2＝ｑ

1/ｎ・Ｉ1/2＝ 0.48

1.05

0.64

3.02

2/3 2/3

3/5 3/5

2

(b) Piping

(ⅰ) Discharge Condition

(ⅱ) Water Level

- Water level at just upstream of the spillway

Critical depth (ｈc) was applied.

- Water depth at the drop position

ｖc2

2g

ｖ1a＝ｑ/ｈ1a

ｖc2

1

2g 2g

ｖc2

ｑ2

2g 2g

ｈ1a3－ｈ1a

2＋＝0

ｈ1a＝ｍ

- Maximum water level difference in the upstream

ΔＨ＝ｈc＋Ｄ－ｈ1a＝ 0.64＋1.05－0.27＝ｍ

(ⅲ) Sealing Work

Because the overflow situation is complete overflow, water cushion shall bedesigned using design discharge.

ｑ2

ｈ1a2

1.6^2

2×9.8＝0

2.01 0.13

∴ ・

ｖ1a2

2g

＋ｈ1a3

ｈ1a3－＋ ΔＺ＋ｈc　ｈ1a

2＋＝0

＋

ｈ1a3－

2.5^2

2×9.8＋

＋ ΔＺ＋ｈc＝

ΔＺ＋ｈc＝

＋ｈ1a

ｈ1a2＋1.05 ＋ 0.64

0.27

1.42

h2

hc

⊿h

l4

l3l2l1

3

Ｃ≦(Ｌ/3＋Σl)/⊿h （Lane 's method）

Ｃ：creep ratio

Ｌ：Length of Body and Water Cushion (m)

Σl： Verticalcreep Length (m)（l1+l2+l3+l4）

⊿h： Maximum Water Level Difference (m)

Ｃ×⊿h≦Ｌ/3＋Σl

× ≦ /3＋Σl

∴Σl≧

- Required lining length

- Designed lining length

Upstream lc1＝ｍ

Downstream lc2＝ｍ

………

Classification

Fine gravel

5.0

Classification

Very fine sand or silt

Fine sand

5.90

10.1

C

4.0

3.5

3.0

2.5Coarse sand

C

8.5

7.0

6.0

Creep Ratio

Σl－(Ｄ1＋Ｄ3＋2×ｄ）

2l＝

Medium gravel

Coarse gravel with cobble

Gravel and cobble

Medium sand

8.5 1.42

4.0 ｍ＝10.1－(0＋0.3＋2×1)

2＝

2.2

2.2

3.9 ⇒

4

b) Stability Analysis

(a) External Force

Bed Level Difference (Ｄ1) ｍ

Effective Dam Height (Ｄ2) ｍ

Water Cushion Depth (Ｄ3) ｍ

Total Head　(Ｄ) ｍ

Water Cushion Thickness (ｄ) ｍ

Crest Width (Ｗ) ｍ

ｍ

Body + Water Cushion＝(Ｌ) ｍ

Downstream Side Slope (Ｉ)

Critical Depth (ｈc) ｍ

Water depth at drop position (ｈ1a) ｍ

Lining Length

Upstream (ｌc1) ｍ

Downstream (ｌc2) ｍ

Unit Weight of Structure (γ c) t/m3

Unit Weight of Water (Ｗ0) t/m3

Internal Friction Angle of Soil

Normal Time Ｋa1＝

Earthquake Time Ｋea＝

Water Cushion Length (includes slope)

2.2

1.05

5.90

0.382

4.00

1：1.00

0.64

0.27

2.2

0.30

0.297

0.00

1.00

1.90

2.2

1.00

0.75

PW1

pw1

pw2水圧土圧

hc

W

D2

D1+D3D

I

d

h1a

PW2

pw1

pw2水圧

Ub

Ua

L

lc2

lc1

5

(ⅰ) Dead Load and Inertia Force

①

②

①

②

③

ｘ＝Σ(Ｗi・ｘi)/ΣＷ＝ 45.18/18.58＝

ｙ＝Σ(Ｈi・ｙi)/ΣＨ＝ 1.79/2.24＝

(ⅱ) Earth Pressure

Normal Time

intensity of earth pressure

ｐ1＝Ｋa1×γbw×(Ｄ1＋Ｄ3＋ｄ)＝ 0.297×1×(0＋0.3＋1)＝

earth pressure

Ｐ1＝1/2×ｐ1×(Ｄ1＋Ｄ3＋ｄ)＝ 1/2×0.39×(0＋0.3＋1)＝

horizontal force

Ｐ1H＝Ｐ1×cos(2φ/3)＝ 0.25×cos(2/3×30°)＝

vertical force

Ｐ1V＝Ｐ1×sin(2φ/3)＝ 0.25×sin(2/3×30°)＝

arm length

ｙ＝(Ｄ1＋Ｄ3＋ｄ)/3＝ (0＋0.3＋1)/3＝

Earthquake Time

intensity of earth pressure

ｐ1e＝Ｋea×γbw×(Ｄ1＋Ｄ3＋ｄ)＝ 0.3821×(0＋0.3＋1)＝

earth pressure

Ｐ1e＝1/2×ｐ1e×(Ｄ1＋Ｄ3＋ｄ)＝ 1/2×0.5×(0＋0.3＋1)＝

horizontal force

Ｐ1He＝Ｐ1e×cos(φ/2)＝ 0.33×cos(1/2×30°)＝

③

4.39

1.21

ｘi

0.95

2.25

Arm Length

ｙi

1.53

EquationＷi

Ｗ×Ｄ×γc

1/2×Ｉ×Ｄ2×γc

Ｌ×ｄ×γc

Total

0.43

2.24

0.15

0.80

12.98

18.58

2.95

2.43

Moment

2.72

38.29

0.20

0.78

1.35

0.50

HiyiMy

0.81

1.79

WixiMx

4.17

1.56

0.50

0.33

0.32

0.39

0.25

0.23

0.09

InertiaForce

(coseismic)

0.53

45.18

6

vertical force

Ｐ1Ve＝Ｐ1e×sin(φ/2)＝ 0.33×sin(1/2×30°)＝

arm length

ｙ＝(Ｄ1＋Ｄ3＋ｄ)/3＝ (0＋0.3＋1)/3＝

(ⅲ) Water Pressure

Normal Time

Back side ｐw1b＝ρw×ｈc＝ 1.0×0.64＝

ｐw2b＝ρw×(ｈc＋Ｄ＋ｄ)＝1.0×(0.64＋1.05＋1)＝

ＰＷ1b＝1/2×(ｐw1＋ｐw2)×(Ｄ＋ｄ)

＝1/2×(0.64＋2.69)×(1.05＋1)＝

ｙ＝(Ｄ＋ｄ)/3×(2×ｐw1＋ｐw2)/(ｐw1＋ｐw2)

＝(1.05＋1)/3×(2×0.64＋2.69)/(0.64＋2.69)＝

Front side ｐw1f＝ρw×ｈ1a＝1.0×0.27＝

ｐw2f＝ρw×(ｈ1a＋ｄ)＝ 1.0×(0.27＋1)＝

ＰＷ2f＝1/2×(ｐw1＋ｐw2)×ｄ＝1/2×(0.27＋1.27)×1＝

ｙf＝ｄ/3×(2×ｐw1＋ｐw2)/(ｐw1＋ｐw2)

＝1/3×(2×0.27＋1.27)/(0.27＋1.27)＝

Earthquake Time

Back side ＰＷ1eb＝1/2×ρw×(Ｄ＋ｄ)＝ 1/2×1.0×(1.05＋1)＝

ｙeb＝(Ｄ＋ｄ)/3＝ (1.05＋1)/3＝

Front side ＰＷ2eb＝1/2×ρw×ｄ＝ 1/2×1.0×1＝

ｙeb＝ｄ/3＝ 1/3＝

(ⅳ) uplift force

Normal Time

Σl＝Ｄ＋ｄ＋2×lc1＋Ｌ＋2×lc2＋ｄ＝ 1.05＋1＋2×2.2＋5.9＋2×2.2＋1＝ｍ

Ｕa＝(ｄ＋⊿Ｈ×(Σl－la)/Σl)×Ｗ0

＝ (1＋1.42×(17.75－(1.05＋1＋2×2.2))/17.75)×1.0＝ tf/m2

Ｕb＝(ｄ＋⊿Ｈ×(Σl－lb)/Σl)×Ｗ0

＝ (1＋1.42×(17.75－(1.05＋1＋2×2.2＋5.9))/17.75)×1.0＝ tf/m2

Ｕ＝ 1/2×(1.9＋1.43)×5.9＝ tf/m2

ｘ＝ 5.9/3×(2×1.43＋1.9)/(1.43＋1.9)＝ｍ

0.33

1.27

0.77

1.03

0.68

0.50

3.41

0.81

0.27

0.39

2.69

0.09

0.43

0.64

1.9

1.43

9.82

2.81

17.75

7

Earthquake Time

Σl＝Ｄ＋ｄ＋2×lc1＋Ｌ＋2×lc2＋ｄ＝ 1.05＋1＋2×2.2＋5.9＋2×2.2＋1＝ｍ

Ｕa＝(ｄ＋⊿Ｈ×(Σl－la)/Σl)×Ｗ0

＝ (1＋1.05×(17.75－(1.05＋1＋2×2.2))/17.75)×1.0＝ tf/m2

Ｕb＝(ｄ＋⊿Ｈ×(Σl－lb)/Σl)×Ｗ0

＝ (1＋1.05×(17.75－(1.05＋1＋2×2.2＋5.9))/17.75)×1.0＝ tf/m2

Ｕ＝ 1/2×(1.67＋1.32)×5.9＝ tf/m2

ｘ＝ 5.9/3×(2×1.32＋1.67)/(1.32＋1.67)＝ｍ

(b) Stability Analysis (Normal Time)

(ⅰ) Overturning

ｘ＝(Ｎ・ｘ＋Ｈ・ｙ)/Ｎ＝(17.56＋2.56)/8.85＝

ｅ＝Ｌ/2－ｘ＝ 5.9/2－2.27＝＜Ｌ/6＝ OK

(ⅱ) Sliding

Ｎ・ｆ/Ｈ＝ 8.85×0.5/2.87＝＞ OK

(ⅲ) Pearing Power of Ground

Ｐ＝Ｎ/Ｌ×(1＋(6×ｅ)/Ｌ)

＝ 8.85/5.9×(1＋(6×0.68)/5.9)＝＜ OK

Case without uplife

ｘ＝(Ｎ・ｘ＋Ｈ・ｙ)/Ｎ＝(45.15＋2.56)/18.67＝

ｅ＝Ｌ/2－ｘ＝ 5.9/2－2.56＝

Ｐ＝Ｎ/Ｌ×(1＋(6×ｅ)/Ｌ)

＝ 18.67/5.9×(1＋(6×0.39)/5.9)＝＜ OK

Σ

Dead Load

Soil Pressure

Water Pressure (ＰＷ1)

Water Pressure(ＰＷ2)

Uplift

0.39

4.42 20 ………

18.67 45.15 2.56

2.56

1.54 1.50 ………

2.54 20 ………

8.85

2.81

0.77

-2.87

Ｎ(tf)

18.58

0.09

Ｈ(tf)

-0.23

-3.41

-9.82

0.81

0.39

ｘ(ｍ)

2.43

0.00

2.76

-0.30

2.5617.56

H・y(tf・m)

0.10

N・x(tf・m)

45.15

0.00

ｙ(ｍ)

0.43

0.68 0.98 ………

17.75

2.27

2.87

1.67

1.32

8.82

2.83

-27.59

8

(c) Stability Analysis (Earthquake Time)

(ⅰ) Overturning

ｘ＝(Ｎ・ｘ＋Ｈ・ｙ)/Ｎ＝(20.19＋2.46)/9.85＝

ｅ＝Ｌ/2－ｘ＝ 5.9/2－2.3＝＜Ｌ/3＝ OK

(ⅱ) Sliding

Ｎ・ｆ/Ｈ＝ 9.85×0.5/3.09＝＞ OK

(ⅲ) Pearing Power of Ground

Ｐ＝Ｎ/Ｌ×(1＋(6×ｅ)/Ｌ)

＝ 9.85/5.9×(1＋(6×0.65)/5.9)＝＜ OK

Case without uplife

ｘ＝(Ｎ・ｘ＋Ｈ・ｙ)/Ｎ＝(45.15＋2.46)/18.67＝

ｅ＝Ｌ/2－ｘ＝ 5.9/2－2.55＝

Ｐ＝Ｎ/Ｌ×(1＋(6×ｅ)/Ｌ)

＝ 18.67/5.9×(1＋(6×0.4)/5.9)＝＜ OK30

Water Pressure (ＰＷ2)

Uplift

Σ 20.19

0.33

1.20 ………

Dead Load/EQintertia force

Soil Pressure (Ｐ1) 0.43 0.00 0.14

H・y(tf・m)

18.58 -2.24 2.43

2.77 30 ………

1.79

………

2.30

0.65 1.97 ………

0.68Water Pressure (Ｐ

Ｗ1)

2.55

0.40

4.45

1.59

2.46

18.67 3.09 45.15 2.46

9.85 -3.09

-0.17

-8.82 2.83 -24.96

0.50

0.70

0.09 -0.32 0.00

-1.03

0.80 45.15

Ｎ(tf) Ｈ(tf) ｘ(ｍ) ｙ(ｍ) N・x(tf・m)

9


THE PROJECT FOR



IN INDONESIA

TECHNICAL COOPERATION REPORT

COMPREHENSIVE FLOOD MANAGEMENT PLAN

ANNEX-4 COORDINATION OF RIVER BASIN

ORGANIZATION

OCTOBER, 2013


GEJR

13-198


THE PROJECT FOR



IN INDONESIA



ANNEX-4 COORDINATION OF RIVER BASIN

ORGANIZATION

OCTOBER, 2013


Exchange Rate applied in this Report As of September, 2013

USD 1.00 = IDR 10,929.766

USD 1.00 = JPY 98.04

The Project for Capacity Development of Jakarta Comprehensive Flood Management in Indonesia Annex-4 Coordination of River Basin Organization

i

The Project for Capacity Development of Jakarta Comprehensive Flood Management

in Indonesia

Technical Cooperation Report Comprehensive Flood Management Plan

Annex-4 Coordination of River Basin Organization

Table of Contents CHAPTER 1 ORGANIZATIONS RELATED TO

COMPREHENSIEVE FLOOD MANAGEMENT ........................................................ 1-1 1.1 Outline of Organizations related to Comprehensive Flood Management ....................... 1-1

1.1.1 Directorate General of Water Resources ....................................................................... 1-1 1.1.2 Ciliwung-Cisadane River Basin Management Main Office

(BBWS Ciliwung-Cisadane) ......................................................................................... 1-4 1.1.3 Directorate General of Spatial Planning ........................................................................ 1-5 1.1.4 Directorate General of Human Settlements ................................................................... 1-6 1.1.5 Development Cooperation Agency of JABODETABEKJUR

(DCA JABODETABEKJUR) ........................................................................................ 1-7 1.1.6 Government of Jakarta Special Province (DKI Jakarta) .............................................. 1-10 1.1.7 Government of West Java Province ............................................................................. 1-15 1.1.8 Government of Bogor Regency ................................................................................... 1-18 1.1.9 Government of Bogor City .......................................................................................... 1-21 1.1.10 Government of Depok City ......................................................................................... 1-23

1.2 Role Allocation of Organizations related to Comprehensive Flood Management ....... 1-25 CHAPTER 2 RELATED LEGISLATIVES ON COORDINATION INSTITUTION ........................ 2-1

2.1 Outline of Legislatives related to Establishment of Coordination Institution ................ 2-1 2.2 Law No. 7/2004 on Water Resources ................................................................................ 2-1 2.3 Government Regulation No. 42/2008 on Water Resources Management ...................... 2-2 2.4 Presidential Regulation No. 12/2008 on Water Resources Council ................................ 2-3 2.5 Minister of Public Works Regulation No. 4/PRT/M/2008 on

Guideline for Establishment of Water Resources Council ............................................... 2-3 CHAPTER 3 EXISTING COORDINATION INSTITUTION RELATED TO

COMPREHENSIVE FLOOD MANAGEMENT ....................................................... 3-1 3.1 National Water Resources Council .................................................................................... 3-1 3.2 TKPSDA WS Bengawan Solo ........................................................................................... 3-2 3.3 TKPSDA WS Brantas ......................................................................................................... 3-3 3.4 TKPSDA WS 6Ci ............................................................................................................... 3-3 3.5 Current Movement regarding Division of TKPSDA WS 6Ci .......................................... 3-5 3.6 Issues on the Existing Coordination Institution ................................................................ 3-6 3.7 Necessity of Comprehensive Flood Management Committee for Ciliwung River Basin

(CFMC) ............................................................................................................................... 3-6 CHAPTER 4 EXAMINATION OF EXTABLISHMENT OF

COMPREHENSIVE FLOOD MANAGEMENT COMMITTEE FOR CILIWUNG RIVER BASIN (CFMC) ........................................................................... 4-1

4.1 Framework of CFMC ......................................................................................................... 4-1 4.1.1 Functions of CFMC ....................................................................................................... 4-1 4.1.2 Framework of CFMC .................................................................................................... 4-1 4.1.3 Roles of Members of CFMC ......................................................................................... 4-2

CHAPTER 5 ESTABLISHMENT OF MECHANISM FOR MONITORING, EVALUATION AND FEEDBACK FOR CFMP/CFMAP ........................................... 5-1

5.1 Outline of Legislatives related to Monitoring, Evaluation and Feedback ...................... 5-1


ii

5.1.1 Law No. 25/2004 on National Development Planning .................................................. 5-2 5.1.2 Government Regulation No. 39/2006 on Monitoring and Evaluation Procedure for

Implementation of Development Plan ........................................................................... 5-2 5.1.3 Government Regulation No. 8/2008 on Formulation, Monitoring and Evaluation of

Regional Development Plan .......................................................................................... 5-3 5.2 Current Monitoring Activity .............................................................................................. 5-4

5.2.1 Ministry of Public Works ............................................................................................... 5-4 5.2.2 Government of DKI Jakarta .......................................................................................... 5-5

5.3 Identified Issues for the Monitoring and Evaluation for CFMP/CFMAP....................... 5-6 5.4 Establishment of the Monitoring, Evaluation and Feedback Mechanism in CFMC ...... 5-6 5.5 Minister of Public Works Regulation on Preparation of

Water Resources Management Plan (Rencana) ................................................................ 5-8 CHAPTER 6 TKPSDA WS CILIWUNG-CISADANE ....................................................................... 6-1

6.1 Establishment of TKPSDA WS Ciliwung-Cisadane ........................................................ 6-1 6.2 Outline of Minister of Public Works Regulation No. 242/KPTS/M/2013 ...................... 6-1 6.3 Draft of Commission Structure and Internal Regulation of

TKPSDA WS Ciliwung-Cisadane ..................................................................................... 6-2 6.3.1 Draft of Commission Structure of TKPSDA WS Ciliwung-Cisadane .......................... 6-2 6.3.2 Draft of Internal Regulation of TKPSDA WS Ciliwung-Cisadane ............................... 6-3

6.4 Recommendation on the Operation of TKPSDA WS Ciliwung-Cisadane ..................... 6-4 6.4.1 Monitoring Mechanism of CFMP/CFMAP ................................................................... 6-5 6.4.2 Enhancement of Secretariat Function ............................................................................ 6-6 6.4.3 Monitoring Mechanism of CFMP/CFMAP ................................................................... 6-7


iii


Figure 1.1-1 Organization Chart of Ministry of Public Works ............................................... 1-1 Figure 1.1-2 Organization Chart of Directorate General of Water Resources ........................ 1-2 Figure 1.1-3 Organization Chart of BBWS Ciliwung-Cisadane............................................. 1-5 Figure 1.1-4 Organization Chart of Directorate General of Spatial Planning ........................ 1-6 Figure 1.1-5 Organization Chart of Directorate General of Human Settlement ..................... 1-7 Figure 1.1-6 Organization Chart of DCA JABODETABEKJUR ........................................... 1-8 Figure 1.1-7 Organization Chart of BAPPEDA, DKI Jakarta .............................................. 1-11 Figure 1.1-8 Organization Chart of Public Works Agency, DKI Jakarta .............................. 1-12 Figure 1.1-9 Organization Chart of Spatial Planning Agency, DKI Jakarta ......................... 1-12 Figure 1.1-10 Organization Chart of Industry and Energy Agency, DKI Jakarta ................... 1-13 Figure 1.1-11 Organization Chart of Regional Environmental Management Agency,

DKI Jakarta ...................................................................................................... 1-14 Figure 1.1-12 Organization Chart of Building Supervision and Controlling Agency,

DKI Jakarta ...................................................................................................... 1-15 Figure 1.1-13 Organization Chart of Regional Development Planning Agency,

West Java Province .......................................................................................... 1-16 Figure 1.1-14 Organization Chart of Water Resources Management Agency,

West Java Province .......................................................................................... 1-17 Figure 1.1-15 Organization Chart of Housing and Settlement Agency, West Java Province . 1-18 Figure 1.1-16 Organization Chart of Regional Development Planning Agency,

Bogor Regency ................................................................................................. 1-19 Figure 1.1-17 Organization Chart of Highways and Water Resources Agency,

Bogor Regency ................................................................................................. 1-20 Figure 1.1-18 Organization Chart of Building and Settlement Agency, Bogor Regency ....... 1-21 Figure 1.1-19 Organization Chart of Regional Development Planning Agency, Bogor City . 1-22 Figure 1.1-20 Organization Chart of Highways and Water Resources Agency, Bogor City .. 1-23 Figure 1.1-21 Organization Chart of Regional Development Planning Agency, Depok City 1-24 Figure 1.1-22 Organization Chart of Highways and Water Resources Agency, Depok City .. 1-24 Figure 1.1-23 Organization Chart of Building Management and Settlement Agency,

Depok City ....................................................................................................... 1-25 Figure 2.5-1 Relation of Water Resources Council and TKPSDA WS .................................. 2-3 Figure 3.1-1 Structure of Secretariat of National Water Resources Council .......................... 3-2 Figure 3.2-1 Structure of TKPSDA WS Bengawan Solo ....................................................... 3-2 Figure 3.4-1 Structure of Secretariat of TKPSDA WS 6Ci .................................................... 3-4 Figure 3.4-2 Structure of TKPSDA WS 6Ci ........................................................................... 3-5 Figure 3.7-1 Relation of POLA and CFMC ............................................................................ 3-7 Figure 4.1-1 Framework of CFMC ......................................................................................... 4-1 Figure 5.1-1 Existing Scheme for Planning, Budgeting, Implementation and Monitoring .... 5-1 Figure 5.1-2 Reporting of Monitoring Result ......................................................................... 5-2 Figure 5.2-1 e-Monitoring System (Ministry of Public Works) ............................................. 5-5 Figure 5.2-2 e-Monitoring System (BBWS Ciliwung-Cisadane) ........................................... 5-5 Figure 5.2-3 e-MONEV System (Public Works Office in DKI Jakarta) ................................ 5-6 Figure 5.4-1 Correlation with Legalization of CFMP/CFMAP and Monitoring/Evaluation .. 5-7 Figure 5.4-2 Draft Monitoring and Evaluation Mechanism in CFMC ................................... 5-8 Figure 5.5-1 Flow Chart for Preparation of Rencana ............................................................. 5-9 Figure 5.5-2 Establishment Process of Rencana for Cross-Province River Basin District ... 5-10 Figure 5.5-3 Flow Chart for Monitoring, Evaluation and Revision of Rencana (Draft) ...... 5-11 Figure 6.3-1 Draft Commission Structure of TKPSDA WS Ciliwung-Cisadane ................... 6-2 Figure 6.4-1 Member of TKPSDA WS Ciliwung-Cisadane and Organization

related to CFM ................................................................................................... 6-6 Figure 6.4-2 Monitoring Mechanism in TKPSDA WS Ciliwung-Cisadane ........................... 6-7


iv

List of Tables Table 1.1-1 Main Function of Two Directorates ................................................................... 1-2 Table 1.1-2 Demarcation of Situ Management ..................................................................... 1-3 Table 1.1-3 Functions and Target Sectors of DCA JABODETABEKJUR ........................... 1-8 Table 1.1-4 Priority Sector Program ..................................................................................... 1-8 Table 1.1-5 Priority Development Program .......................................................................... 1-9 Table 1.1-6 Financial Support Program by DKI Jakarta (2011) ......................................... 1-10 Table 1.2-1 Role Allocation of Organizations related to CFM ........................................... 1-26 Table 2.1-1 Related Legislatives on Coordination Institution ............................................... 2-1 Table 2.2-1 Composition of Law No. 7/2004 ........................................................................ 2-1 Table 2.3-1 Composition of Government Regulation No. 42/2008 ...................................... 2-2 Table 3.1-1 Membership of National Water Resources Council ........................................... 3-1 Table 3.2-1 Membership of TKPSDA WS Bengawan Solo .................................................. 3-3 Table 3.3-1 Membership of TKPSDA WS Brantas ............................................................... 3-3 Table 3.4-1 Membership of TKPSDA WS 6Ci ..................................................................... 3-4 Table 3.4-2 Agenda of TKPSDA WS 6Ci Meeting ............................................................... 3-5 Table 6.2-1 Member of TKPSDA WS Ciliwung-Cisadane ................................................... 6-2


1-1

CHAPTER 1 ORGANIZATIONS RELATED TO COMPREHENSIEVE FLOOD MANAGEMENT

1.1 Outline of Organizations related to Comprehensive Flood Management

The Ministry of Public Works, as a central government agency, has responsibility for formulating the national policy and guidance for the public investment and improving the social welfare by executing the public works. The Ministry consists of the following four (4) directorate generals (see in Figure 1.1-1). Directorate General of Water Resources Directorate General of Spatial Planning Directorate General of Human Settlements Directorate General of Highways

Construction Development Board Research and Development Board Secretary General Inspectorate General

Minister of Pubic Works

Vice Minister of Public Works

Advisor of MinisterStaf Ahli Menteri

Badan Pembinaan Konstruksi Badan Penelitian dan Pengembangan Sekretaris Jenderal Inspektorat Jenderal

Directorate General ofWater Resources

Directorate General ofSpatial Planning

Directorate General ofHuman Settlement

Directorate General ofHighway

Direktrat Jenderal Sumber Daya Air Direktorat Jenderal Penataan Ruang Direktorat Jenderal Cipta Karya Direktorat Jenderal Bina Marga

Secretary of Dir. Gen. ofSpatial Planning

Secretary of Dir. Gen. ofHighway

Secretary of Dir. Gen. ofWater Resoruces

Secretary of Dir. Gen. ofHuman Settlement

Sekretaris Dit. Jen. Penataan Ruang Sekretaris Dit. Jen. Bina MargaSekretaris Dit. Jen. Sumber Daya Air

Directorate of Programming andPartnership

Directorate of ProgrammingDirectorate of Programming Directorate of Programming

Sekretaris Dit. Jen. Cipta Karya

Direktorat Bina Program dan Kemitraan Direktorat Bina ProgramDirektorat Bina Program

Directorate of National Spatial Planning Directorate of Technical GuidanceDirectorate of Water Resources

ManagementDirectorate of Settlement Development

Drektorat Bina Program

Direktorat Penataan Ruang WilayahNasional

Direktorat Bina TeknikDirektorat Bina Penatagunaan Sumber

Daya Air

Directorate of Urban AreaDirectorate of Implementation Guidance

Region IDirectorate of River and Coast

Direktorat Pengembangan Permukiman

Direktorat Bina Pelaksana Wilayah I(Sematera)

Direktorat Sungai dan Pantai

Directorate of Spatial PlanningRegion I

Directorate of Implementation GuidanceRegion II

Directorate of Irrigation and Swamp

Direktorat Pembinaan Penataan RuranDaerah Wilayah II

Direktorat Bina Pelaksana Wilayah III(Kalimantan, Sulawesi & Indonesia Timur)

Direktorat Bina Operasi danPemeliharaan

Direktorat Penataan Bangunan danLingkungan

Directorate of Building and EnvironmentalManagement

Direktorat Pengembangan PenyehatanLingkungan Permukiman

Directorate of Environmental SanitationDevelopment

Direktorat Pengembangan Air Minum

Directorate of Drinking WaterDevelopment

Direktorat Pembinaan Penataan RuranDaerah Wilayah I

Direktorat Bina Pelaksana Wilayah II(Java, Bali & Nusa Tenggara)

Direktorat Irigasi dan Rawa

Directorate of Spatial PlanningRegion II

Directorate of Implementation GuidanceRegion III

Directorate of Operation and Maintenance

Direktorat Perkotaan

Figure 1.1-1 Organization Chart of Ministry of Public Works Moreover, in the provincial level, the governments of Jakarta Special Province and West Java have conducted the policy formulation, project implementation and management for the flood control and run-off control measures. Furthermore, the other local governments consisting of the governments of Bogor Regency, Bogor City and Depok City also carry out their own mandates. The outline of each organization will be described below. 1.1.1 Directorate General of Water Resources

The Directorate General of Water Resources (DGWR), Ministry of Public Works is a responsible


1-2

agency to formulate and implement the policy and technical guidance/standards regarding the water resources. The main tasks of the DGWR are summarized as follows. In accordance with the national laws, to formulate the policy on the water resources conservation

and utilization of the river, lakes, reservoir, dam, irrigation, groundwater and surface water and on the protection from flood

To conduct the policy formulation, budget management and policy evaluation, and to implement the policy on the rehabilitation and reconstruction of damaged water resources infrastructure by the flood

To formulate the technical standards, specifications, required procedures and evaluation criteria for the water resources management

To collect and manage the hydrological data, and to formulate the technical guidance for the river basin management, water resources infrastructure, water resources development, operation and maintenance of water resources, utilization of water resources, institutional development and community involvement

The organization chart of DGWR is shown in Figure 1.1-2, consisting of four (4) administrative sections and five (5) technical directorates.

Administration Administration Administration Administration Administration

Subbag TU Subbag TU Subbag TU Subbag TU Subbag TU

Office Functional GroupBalai Kelompok Jabatan Fungsional

Director General ofWater Resources

Direktur Jenderal Sumber Daya Air

Personnel and Organization Section Financial and General Section Legal and Legislative Section State-owned Property Management Section

Bagian Kepegawaian dan Ortala Bagian Keuangan dan Umum Bagian Hukum dan Perundang-undangan Bagian Pengelolaan BMN

Directorate of Programming Directorate of Water Resources Management Directorate of River and Coast Directorate of Irrigation and Swamp

Direktorat Bina ProgramDirektorat Bina Penatagunaan Sumber

Daya AirDirektorat Sungai dan Pantai Direktorat Irigasi dan Rawa

Subdirectorate of Policy and StrategySubdirectorate of Hydrology and

Water QualitySubdirectorate of Technical Planning Subdirectorate of Technical Planning

Subdirektorat Kebijakan dan Strategi Subdirektorat Hidrologi dan Kualitas Air Subdirektorat Perencanaan Teknis Subdirektorat Perencanaan Teknis

Subdirectorate of Region I Subdirectorate of Region I

Subdirektorat Program dan Anggaran Subdirektorat Perencanaan Wilayah Sungai Subdirektorat Wilayah I Subdirektorat Wilayah I

Subdirectorate of Data and Information ofWater Resources

Subdirectorate of Institution Subdirectorate of Region III Subdirectorate of Region III

Secretary of Dir. Gen. ofWater Resoruces

Sekretaris Dit. Jen. Sumber Daya Air

Subdirektorat Kerja Sama Luar Negeri Subdirektorat Pengaturan

Subdirectorate of Foreign Cooperation Subdirectorate of Regulation Subdirectorate of Region II Subdirectorate of Region II

Subdirektorat Wilayah II Subdirektorat Wilayah II

Subdirectorate of Program and Budgeting Subdirectorate of River Basin Planning

Subdirektorat Evaluasi KinerjaSubdirektorat Pengendalian Pemanfaatan

Sumber Daya AirSubdirektorat Prasarana Konservasi dan

SedimenSubdirektorat Air Baku dan Air Tanah

Subdirektorat Data dan Informasi SumberDaya Air

Subdirektorat Kelembagaan Subdirektorat Wilayah III Subdirektorat Wilayah III

Subdirectorate of Performance EvaluationSubdirectorate of Water Resources Utilization

ControlSubdirectorate of Conservation and Sediment

InfrastructureSubdirectorate of Raw Water Supply and

Ground Water

Subdirektorat OP PenanggulanganBencana

Directorate of Operation and Maintenance

Direktorat Bina Operasi dan Pemeliharaan

Subdirectorate of Technical O&M

Subdirektorat Perencanaan OP

Subdirectorate of O&M for River and Coast

Subdirektorat OP Sungai dan Pantai

Subdirectorate of O&M for Dam

Subdirektorat OP Bendungan

Subdirectorate of O&M for Irrigation andSwamp

Subdirektorat OP Irigasi dan Rawa

Subdirectorate of O&M for DisasterManagement

Figure 1.1-2 Organization Chart of Directorate General of Water Resources The Directorate of Water Resources Management and the Directorate of River and Coast in DGWR will play a main role for the formulation and implementation of CFMP with the following tasks.

Table 1.1-1 Main Function of Two Directorates

Directorate Sub-directorate Task

Water Resources Management

Hydrology and Water Quality

To formulate the technical standards/guidance on hydrological and water quality management

River Basin Planning To formulate the technical standards/guidance on the water resources management planning in a river basin

Regulation To formulate and disseminate the legal basis on water resources management


1-3

Directorate Sub-directorate Task

Institution To formulate the guidance for the establishment and development of water resources management institution

Water Resources Utilization Control

To formulate the technical standards/guidance on the water resources utilization

River and Coast Technical Planning To formulate and disseminate the technical standards/specifications on river, lake and coast

Region I To formulate and disseminate the technical standards/specifications on river, lake and coast and to supervise the water resources works in Sumatra Island

Region II To formulate and disseminate the technical standards/specifications on river, lake and coast and to supervise the water resources works in Java and Kalimantan Islands

Region III To formulate and disseminate the technical standards/specifications on river, lake and coast and to supervise the water resources works in Eastern Indonesian regions (Sulawesi, Bali, Nusa Tenggara, Maluku and Papua)

Conservation and Sediment

To formulate and disseminate the technical standards/specifications on sedimentation and development and conservation of water resources

Moreover, the responsibility for the management of pond (Situ) will be transferred to the local governments by concluding the Minutes of Understandings (MoU) between the central and local governments. In accordance with the present draft of MoU, the demarcation of Situ management is shown in Table 1.1-2 below.

Table 1.1-2 Demarcation of Situ Management

No. Name of Situ Location Scale

Capacity (m3) Original (ha.)

Measured (ha. in 2008)

Managed by Central Government Agency (BBWS Ciliwung-Cisadane)

1. Cikaret Bogor Regency 29.50 29.50 885,000

2. Dongkelan Depok City 8.40 6.25 187,000

No. Name of Situ Responsible GovernmentScale



Managed by Local Government Agencies

1. Kemuning Bogor Regency 21.00 12.65 279,500

2. Kebantenan Bogor Regency 5.77 4.50 135,000

3. Cimanggis Bogor Regency 2.83 2.83 84,900

4. Cibeureum Bogor Regency 2.50 2.50 75,000

5. Nanggerang Bogor Regency 2.00 2.00 60,000

6. Cijantung/Kibing Bogor Regency 2.00 2.00 60,000

7. Kandang Babi Bogor Regency 1.50 1.50 45,000

8. Telagawarna/ Telagasaat Bogor Regency 1.50 1.50 45,000

9. Sela Bogor Regency 1.50 1.50 45,000

10. Ciburial Bogor Regency 0.75 0.75 22,500

11. Salam Bogor City 1.00 1.00 30,000

12. Cilodong Depok City 10.00 9.50 285,000

13. Sidomukti/Baru Depok City 7.50 7.50 225,000

14. Citayam Depok City 8.15 7.20 216,000

15. Dongkelan Depok City 8.40 6.25 187,500

16. Pondok Cina Depok City 4.50 4.00 120,000

17. Pangarengan/Telaga RRI Depok City 2.00 2.00 60,000

18. Ciming Depok City 1.50 1.30 39,000

19. Bahar Depok City 1.00 0.95 28,500

20. Taman Ria Jakarta DKI Jakarta 6.00 6.00 180,000


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No. Name of Situ Responsible GovernmentScale



21. Rawa Gelam/Badung DKI Jakarta 2.80 3.80 114,000

22. Jambore Cibubur (new) DKI Jakarta 2.00 3.00 90,000

23. Rawa Dongkal DKI Jakarta 12.02 - -

24. Kelapa Dua Wetan DKI Jakarta 8.40 - -

25. Rawa Rorotan DKI Jakarta 50.00 - -

26. Rawa Penggilingan DKI Jakarta 5.00 - -

27. TMP Kalibata DKI Jakarta 6.00 - -

28. TMII DKI Jakarta - - -

29. Mangga Bolong DKI Jakarta 16.00 - -

30. Babakan DKI Jakarta 32.00 - -

31. Pancoran DKI Jakarta - - -

32. Ragunan DKI Jakarta - - -

33. Rawa Ulujami DKI Jakarta 10.00 - -

34. Rawa Kendal DKI Jakarta 20.00 - -

35. Lembang DKI Jakarta - - - Source: BBWS Ciliwung-Cisadane

By transferring the responsibility and authority for the management of Situ to the local government, the local government agencies in charge of Situ management will be key actors for the implementation of run-off control measures. 1.1.2 Ciliwung-Cisadane River Basin Management Main Office (BBWS

Ciliwung-Cisadane)

Ciliwung-Cisadane River Basin Management Main Office (BBWS Ciliwung-Cisadane) under the DGWR was established in accordance with the Minister of Public Works Regulation No. 13/2006. The covering area of the Office is both Ciliwung river basin and Cisadane river basin. The main tasks of the Office are as follows. To formulate the water resources management policy (POLA) and plan (Rencana) To execute the conservation and utilization of water resources and flood management measures To recommend the licensing the permission on water resources utilization To achieve the proper management of water resources To establish and manage the hydrological database To support the activities of TKPSDA WS 6Ci To accelerate the improvement of public awareness on water resources management BBWS Ciliwung-Cisadane has an authority on the execution of the projects and operation and maintenance of Ciliwung river and on the planning, management and implementation of the required project activities. The structure of the Office is shown in Figure 1.1-3.


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Kelompok Jabatan Fungsional

Functional Group

Kepala BBWS Cil-Cis

Head of BBWS Cil-Cis

O&M Planning Section

Seksi Perencanaan OP

O&M Implementation Section

Seksi Pelaksanaan OP

Administrative Department

Bagian Tata Usaha

Seksi Program

General Planning Section

Seksi Perencanaan Umum

Water Network Implementation Section

Seksi Pelaksanaan Jaringan Sumber Air

O&M of Water Resources Unit East Banjir Canal Unit

PPK OP Sumber Daya Air PPK Banjir Kanal Timur

Planning and Program Unit Raw Water Unit River and Coast Unit

PPK Perencanaan dan Program PPK Air Baku PPK Sungai dan Pantai

Management Unit Irrigation UnitInfrastructure and Conservation of

Water Resources Unit

PPK Ketatalaksanaan PPK IrigasiPPK Prasarana Konservasi

Sumber Daya Air

Program and General Planning Division Implementation Division Operation and Maintenance Division

Satker BBWS Cil-CisSatker Pelaksanaan Jaringan Pemanfaatan

AirSatker Pelaksana Jaringan Sumber Air

Bidang Program dan Perencanaan Umum Bidang Pelaksanaan Bidang Operasi dan Pemeliharaan

Office Management Group Water Network and Utilization Group Water Resources Network Group

Water Utlization Implementation Section

Seksi Pelaksanaan Pemanfaatan Air

Programming Section

Figure 1.1-3 Organization Chart of BBWS Ciliwung-Cisadane The Water Resources Network Group deals with the planning, implementation and management of flood management and run-off control measures, and the Infrastructure and Conservation of Water Resources Unit in the Group maintains and rehabilitates the pond (Situ), retarding pond and inland water drainage facility (pumping station). Moreover, the operation and maintenance of East Banjir Canal and river works of Ciliwung river and its tributaries are conducted by the River and Coast Unit. The rainfall and water level observation stations at four (4) locations were set up and hydrological data are collected and analyzed by the Office. 1.1.3 Directorate General of Spatial Planning

The Directorate General of Spatial Planning (DGSP) is in charge of formulating national spatial plan in accordance with Law No. 26/2007 on Spatial Planning and Management. Based on the Minister of Public Works Regulation No. 15/2009, No. 16/2009 and No. 17/2009, the provincial, regent and city governments have obligation to formulate their own spatial plans in line with national plan. Thus, the Directorate General of Spatial Planning provides technical supports to the local governments for the formulation of the plans by preparing technical standards and guidance. The main tasks are as follows. To formulate the National Spatial Plan To coordinate the National Spatial Plan and local spatial plans To formulate the technical standards, specifications, necessary procedures and evaluation criteria

for the spatial planning To formulate and disseminate the technical guidance for the spatial planning


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Administration Administration Administration Administration Administration

Subbag TU Subbag TU Subbag TU Subbag TU Subbag TU

Kelompok Jabatan FungsionalFunctional Group

BalaiOffice

Subdirectorate of Partnership DevelopmentSubdirectorate of Inter-Sectoral and Regional

CoodinationSubdirectorate of Management Subdirectorate of Management Subdirectorate of Management

Subdirektorat Bina KemitraanSubdirektorat Koordinasi Lintas Sektor dan

WilayahSubdirektorat Pengendalian Subdirektorat Pengendalian Subdirektorat Pengendalian

Subdirectorate of Data, Information andCommunication

Subdirectorate of Region II Subdirectorate of Urban DevelopmentSubdirectorate of Technical Guidance for

Region I BSubdirectorate of Technical Guidance for

Region I B

Subdirektorat Data, Informasi danKomunikasii

Subdirektorat Wilayah II Subdirektorat Pengembangan PerkotaanSubdirektorat Bimbingan Teknis

Wilayah I BSubdirektorat Bimbingan Teknis

Wilayah I B

Subdirectorate of Performance Evaluation Subdirectorate of Region I Subdirectorate of City DevelopmentSubdirectorate of Technical Guidance for

Region I ASubdirectorate of Technical Guidance for

Region I A

Subdirektorat Evaluasi Kinerja Subdirektorat Wilayah I Subdirektorat Pembinaan KotaSubdirektorat Bimbingan Teknis

Wilayah I ASubdirektorat Bimbingan Teknis

Wilayah I A

Subdirectorate of Program and Budgeting Subdirectorate of Arrangement Subdirectorate of Arrangement Subdirectorate of Arrangement Subdirectorate of Arrangement

Subdirektorat Program dan Anggaran Subdirektorat Pengaturan Subdirektorat Pengaturan Subdirektorat Pengaturan Subdirektorat Pengaturan

Subdirectorate of General Planning Subdirectorate of National Strategic Policy Subdirectorate of Urban Strategic Policy Subdirectorate of Policy Subdirectorate of Policy

Subdirektorat Perencanaan Umum Subdirektorat JAKSTRA Nasional Subdirektorat JASTRA Perkotaan Subdirektorat Kebijakan Subdirektorat Kebijakan

Directorate of Spatial PlanningRegion II

Direktorat Bina Program dan KemitraanDirektorat Penataan Ruang Wilayah

NasionalDirektorat Perkotaan

Direktorat Pembinaan Penataan RuranDaerah Wilayah I

Direktorat Pembinaan Penataan RuranDaerah Wilayah II

Bagian Kepegawaian dan Ortala Bagian Keuangan Bagian Hukum dan Perundang-undangan Bagian Umum

Directorate of Programming and Partnership Directorate of National Spatial Planning Directorate of Urban AreaDirectorate of Spatial Planning

Region I

Director General ofSpatial Planning

Direktur Jenderal Penataan Ruang

Secretary of Dir. Gen. ofSpatial Planning

Sekretaris Dit. Jen. Penataan Ruang

Personnel and Organization Section Financial Section Legal and Legislative Section General Affairs Section

Figure 1.1-4 Organization Chart of Directorate General of Spatial Planning The spatial plan in the targeted river basin of JICA Project is managed by the Sub-directorate of Region I (Sumatra and Java islands) under the Directorate of National Spatial Planning. 1.1.4 Directorate General of Human Settlements

The Directorate General of Human Settlements (DGHS) has mandates on the settlement area development, solid waste management, water supply and sewerage management and drainage management, and executes the following tasks for the improvement of the human settlement environment. To formulate the policy on the settlement area development, building development, urban

environmental improvement, water supply and sewerage management and drainage system improvement in urban and regional area

To formulate the technical standards, specifications, necessary procedures and evaluation criteria for the above works

To formulate and disseminate the technical guidance for the above works Same as other directorate generals, Directorate General of Human Settlement consists of four (4) administrative sections and five (5) technical directorates as shown in Figure 1.1-5.


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Administration Administration Administration Administration AdministrationSubbag TU Subbag TU Subbag TU Subbag TU Subbag TU

Balai Kelompok Jabatan Fungsional

Personnel and Organization Section Financial Section Legal and Legislative SectionGeneral Affairs and State-owned Property

Management Section

Office Functional Group

Director General ofHuman Settlement

Direktur Jenderal Cipta Karya

Secretary of Dir. Gen. ofHuman Settlement

Sekretaris Dit. Jen. Cipta Karya

Bagian Kepegawaian dan Ortala Bagian Keuangan Bagian Hukum dan Perundang-undangan Bagian Umun dan Pengelolaan BMN

Directorate of Programming Directorate of Settlement DevelopmentDirectorate of Building and Environmental

ManagementDirectorate of Drinking Water Development


Direktorat Bina Program Direktorat Pengembangan PermukimanDirektorat Penataan Bangunan dan

LingkunganDirektorat Pengembangan Air Minum Direktorat Pengembangan PLP

Drektorat Bina Program Direktorat Pengembangan PermukimanDirektorat Penataan Bangunan dan

LingkunganDirektorat Pengembangan Air Minum

Direktorat Pengembangan PenyehatanLingkungan Permukiman

Directorate of Programming Directorate of Settlement DevelopmentDirectorate of Building and Environmental

ManagementDirectorate of Drinking Water Development


Subdirektorat Kebijakan dan Strategi Subdirektorat Perencanaan Teknis Subdirektorat Perencanaan Teknis Subdirektorat Perencanaan Teknis Subdirektorat Perencanaan Teknis

Subdirectorate of Policy and Strategy Subdirectorate of Technical Planning Subdirectorate of Technical Planning Subdirectorate of Technical Planning Subdirectorate of Technical Planning

Subdirektorat Program dan AnggaranSubdirektorat Pengembangan Permukiman

BaruSubdirektorat Pembinaan Pengelolaan

Gedung dan Rumah NegaraSubdirektorat Investasi Subdirektorat Air Limbah

Subdirectorate of Program and BudgetingSubdirectorate of New Settlement

DevelopmentSubdirectorate of Building Management and

State Estate DevelopmentSubdirectorate of Investment Subdirectorate of Wastewater

Subdirektorat Kerja Sama Luar NegeriSubdirektorat Peningkatan Permukiman

Wilayah ISubdirektorat Wilayah I Subdirektorat Wilayah I Subdirektorat Drainase

Subdirectorate of Foreign CooperationSubdirectorate of Settlement Improvement for

Region ISubdirectorate of Region I Subdirectorate of Region I Subdirectorate of Drainage

Subdirectorate of Region II Subdirectorate of Region II Subdirectorate of Solid Waste

Subdirektorat Data dan InformasiSubdirektorat Peningkatan Permukiman

Wilayah IISubdirektorat Wilayah II Subdirektorat Wilayah II Subdirektorat Persampahan

Subdirectorate of Regulation and InstitutionalDevelopment

Subdirektorat Pengaturan dan PembinaanKelembagaan

Subdirectorate of Performance Evaluation

Subdirektorat Evaluasi Kinerja

Subdirectorate of Data and InformationSubdirectorate of Settlement Improvement for

Region II

Subdirectorate of Institutional Developmentand Management






Figure 1.1-5 Organization Chart of Directorate General of Human Settlement Since this directorate general does not have implementation office, the local governments have authority for the implementation of the settlement area development, solid waste management, water supply and sewerage management and drainage management. 1.1.5 Development Cooperation Agency of JABODETABEKJUR (DCA

JABODETABEKJUR)

The Development Cooperation Agency of JABODETABEKJUR (DCA) was established in accordance with Minister of Home Affairs Regulation No. 6/2006. DCA consists of representatives of local governments as committee members and its secretariat, who are governors of three (3) provincial governments (DKI Jakarta, West Java and Banten provinces), four (4) regents (Bogor, Tangerang, Bekasi and Cianjur regency governments), and four (4) mayors (Bogor, Depok, Tangerang and Bekasi city governments). MoU on the compositions and functions of DCA is renewed annually. The main functions and target sectors of DCA is summarized in Table 1.1-3.


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Table 1.1-3 Functions and Target Sectors of DCA JABODETABEKJUR

Function Target Sector

1. To Formulate JABODETABEKJUR joint development policy

2. To Coordinate JABODETABEKJUR joint development policy formulation

3. To formulate JABODETABEKJUR joint development program

4. To implement JABODETABEKJUR joint development program

5. To monitor JABODETABEKJUR joint development program

6. To evaluate JABODETABEKJUR joint development program

Development: 1. Spatial Plan, Land Use 2. Settlement, Facility,

Infrastructure 3. Water Resources, Sanitation,

Environment Economy: 4. Transportation,

Communication 5. Agri-business, Small-medium

Enterprise 6. Industry, Trading, Mining,

Investment

Social Welfare: 7. Population, Tranquillity,

Discipline 8. Health, Education 9. Social, Labor General Affairs: 10. Program, Finance 11. Household 12. Administration, Employment

The secretariat of DCA is set up with the main tasks for supporting the operation of committee. The structure of the secretariat is shown in Figure 1.1-6.

Sub-division of Water Resources, Sanitationand Environment

Sub-division of Industry, Trading, Miningand Investment

Sub-division of Social and LaborSub-division of Administration and Human

Resources

Kasubag Sumber Daya Air, Kebersihan danLingkungan Hidup

Kasubag Industri, Perdagangan,Pertambangan dan Investasi

Kasubag Sosial dan Tenaga Kerja Kasubag Tata Usaha dan Kepegawaian

Sub-division of Settlement, Facility andInfrastructure

Sub-division of Agribusiness, Cooperationand Small-scale Business

Sub-division of Health and Education Sub-division of Household and Equipment

Kasubag Permukiman, Sarana danPrasarana

Kasubag Agribisnis, Koperasi dan UKM Kasubag Kesehatan dan Pendidikan Kasubag Rumah Tangga dan Perlengkapan

Sub-division of Spatial Planning and LandAffairs

Sub-division of Transportation andCommunication

Sub-division of Population, Tranquility andDiscipline

Sub-division of Program and Finance

Kasubag Tata Ruang dan Pertanahan Kasubag Transportasi dan PerhubunganKasubag Kependudukan, Ketentraman dan

KetertibanKasubag Program dan Keuangan

Secretary of DCA JABODETBEKJUR

Secretairs BKSP JABODETABEKJUR

Division of General Affairs

Kabag Pembangunan Kabag Perekonomian Kabag Per. Dan Kesra Kabag Umum

Division of Development Division of Economy Division of Government and Social Welfare

Committee of DCA JABODETABEKJUR

Panitia BKSP JABODETABEKJUR

Figure 1.1-6 Organization Chart of DCA JABODETABEKJUR According the Joint Decision on Priority Joint Development Cooperation Program in 2009, the following priority sector programs in the Ciliwung river basin is described in Table 1.1-4.

Table 1.1-4 Priority Sector Program

Government Priority Sector

Bogor Regency Education, Health, Agri-business, Water Resources, Spatial Plan

Bogor City Spatial Plan, Water Resources, Education, Transportation, Health

Depok City Health, Transportation, Education, Water Resources, Spatial Plan

DCA also formulated the 5-year joint development plan in the sector shown in Table 1.1-4 above. The priority programs regarding water resources and spatial planning in Ciliwung river basin are shown in Table 1.1-5.


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Table 1.1-5 Priority Development Program Water Resources Management

2009 2010 2011 2012 2013

1. to prepare draft rule for cooperation of water resourcesmanagement between central and provincial government

submit recommendations to the Ministry of Public Works immediately toset the legal umbrella of sharing water resources management between thecentral government with the provincial/regency/city governments inJABODETABEKJUR area

2. to prepare policy (POLA) for water resources management ininter-provincial river basin

compilation of policy (POLA) of water resources management in inter-provincial/regency/city river basin

3. to optimize operation and maintenance of ponds (situ), swamps,lakes and rivers

O&M of ponds and rivers is assigned to local governments (province,regency, city)

4. to plan construction of Ciawi reservoir in Bogor regency

5. to plan construction of dam across the Depok city

6. to accelerate process of ratification of instruction on handlingpost-flood in JABODETABEKJUR area

accelerate the process of ratification and implementation of the physicalrealization of flood mitigation in JABODETABEKJUR area

7. to handle revitalization/rehabilitation of ponds programmed as forthe post-flood instruction in 2007

implement revitalization/rehabilitation of ponds programmed as for thepost-flood instruction in 2007

8. to draft joint decision among governers, regents and majors ofJABODETABEKJUR regarding the water permission ofgroundwater and surface water use in inter-provincial/regency/cityriver basin

compilation of draft decision together with governors, regents/mayorsregarding the water resources management in JABODETABEKJUR area

9. to formulate Inter-Provincial/Regency/City Water ResourcesCouncil

compilation of draft Inter-Provincial/Regency/City Water ResourcesCouncil

DescriptionSchedule

ActivityNo.

the central government immediately to realize the budget of landacquisition and physical development of Ciawi reservoirs in Bogorregency and dams in Depok city

Spatial Planning

2009 2010 2011 2012 2013

1. to accelerate the adjustment of regional spatial plans inprovince/regency/city in JABODETABEKJUR area in accordancewith Presidential Decree No. 54/2008.

a. regional spatial plan in DKI Jakarta province

b. regional spatial plan in West Java province

c. regional spatial plan in Bogor regency

d. regional spatial plan in Bogor city

e. regional spatial plan in Depok city

2. to formulate the policy (POLA) with incentive and disincentive(upstream-downstream)

DKI Jakarta provides assistance for the conservation of upstream area.

3. to prepare/formulate joint format for inter-sector/regionalcooperation in JABODETABEKJUR area

guideline for stakeholder in the implementation of development inJABODETABEKJUR area

4. to prepare/formulate map with same scale and nomenclature compilation of map with same scale and nomenclature for planning inJABODETABEKJUR area

5. to formulate mid-term development plan 2010-2014 inJABODETABEKJUR area

6. to prepare environmental management strategy and nationalstrategy for spacial regions in JABODETABEKJUR area

compilation of environmental management strategy inJABODETABEKJUR area

7. to prepare geological role in spatial planning inJABODETABEKJUR area

compilation of geological role in spatial planning inJABODETABEKJUR area

- regional spatial plan in accordance with Presidential Decreen No.54/2008 as stipulated need to be adjusted in April, 2009- regional spatial plans in regency/city shall be in April, 2010- adjustment is intended to be harmonized, synchronized and coordinated.

No. ActivitySchedule

Description

The plenary meeting of the committee is held once a year to formulate and evaluate the joint development policy. Also, in the assembly meeting held twice a year, the head of Regional Development Planning Agency (BAPPEDA) of provincial, regency and city governments discuss the joint development program, budget allocation and human resources usage. Moreover, based on the necessity, the technical meeting will be held among the head of implementation agencies in province, regency and city levels and they will discuss and coordinate the monitoring, management and evaluation of the joint development program and specific issues. However, since the members of committee are composed of the several administrative organizations across the provinces, the coordination and implementation of the joint development program have not been well organized. DKI Jakarta provincial government has a financial support mechanism to the surrounding local governments for the improvement of social welfare and living environment. The financial support program in 2011 is summarized in Table 1.1-6.


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Table 1.1-6 Financial Support Program by DKI Jakarta (2011)

Government Program Amount

Bogor Regency development of chilling rooms of small-scale poultry slaughter houses in Cibinong and Ciseeng

construction of retaining wall of Katulampa Gate

Rp. 5 billion

Bogor City normalization of Anggalena Situ in Ciparigi village rehabilitation of retaining wall in Ciliwung river rehabilitation of retaining wall near Jambu market

Rp. 5.5 billion

Depok City upgrading of Limo Raya road in Limo village and Meruyung village upgrading of Putri Tunggal road in Harjamukti village rehabilitation of Gadog Sit in Cisalak village rehabilitation of Pedongkelan Situ in Tugu village rehabilitation of Tipar Situ in Mekarsari village creation of green open space in Lembah Gurame village

Rp. 6.5 billion

As shown above, the financially supported program includes the normalization and rehabilitation of pond (Situ) and rehabilitation of retaining wall in Ciliwung river. 1.1.6 Government of Jakarta Special Province (DKI Jakarta)

(1) Regional Development Planning Agency (BAPPEDA)

According to Governor Regulation of DKI Jakarta No. 70/2009, the roles and functions of Regional Development Planning Agency (BAPPEDA) of DKI Jakarta are stipulated as follows. To formulate the government policy on development planning and study, and regional statistics in

DKI Jakarta To coordinate for the formulation of spatial plan (RTRW), long-term regional development plan

(RPJMD), mid-term regional development plan (RPJMD), and annual regional development plan (RKPD)

To coordinate with regional budgeting committee (BPKD) for the annual budget allocation To coordinate with regional budgeting committee (BPKD) for the annual budget ceiling plan To formulate government policies on economic development, infrastructure development, welfare

improvement, governance, and institutional and financial development and improvement To coordinate for the synchronization of inter-institutional and inter-regional development plans To evaluate the implementation of development plans To provide technical supports to local government agencies for the formulation of development

plans For the implementation of the above roles and functions, the BAPPEDA has the following organization structure.


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Division of Community'sWelfare

Bidang KesejahteraanMasyarakat

Sub-Division of Education,Sports and Youth, Culture and

Empowerment Library

Sub-Bidang Pendidikan,Olahraga dan Pemuda,

Kebudayaan Perpustakaandan Pemberdayaan

Sub-Division of Family Planning,Social, Mental and Spiritual

Sub-Bidang KeluargaBerencana Sosial, dan Mental

Spiritual

Functional GroupDevelopment Planning Unit

Information CenterOffice for City/RegencyDevelopment Planning

Kelompok Jajaran FungsionalUPT Pusat Informasi

Perencanaan Pembangunan

Kantor PerencanaanPembangunan

Kotamadya/Kabupaten

Sub-Bidang Pekerjaan Umum,Perumahan dan Pertanahan

Sub-Bidang KetahananPangan Perdagangan

Sub-Bidang Aparatur Sub-Bidang Pembiayaan Sub-Bidang Statistik DaerahSub-Bidang Pengetahuan dan

Keahlian

Sub-Division of Public Works,Housing and Land

Sub-Division of Food Securityand Trade

Sub-Division of Reform (insideof BAPPEDA)

Sub-Division of FinancingSub-Division of Regional

StatisticsSub-Division of Knowledge and

Expertise

Sub-Bidang Tata Ruang,Lingkungan Hidup, Energi

Sumber Daya

Sub-Bidang PengembanganPotensi Ekonomi Daerah, dan

Komunikasi dan InformasiSub-Bidang Tata Praja Sub-Bidang Program

Sub-Bidang Penelitian danPengembangan Kebijakan

Sub-Bidang Standar danPembinaan Perencanaan

Sub-Division of SpatialPlanning, Environment and

Energy Resources

Sub-Division of EconomicPotential of Regional

Development andCommunications and

Information

Sub-Division of Reform (outsideof BAPPEDA)

Sub-Division of ProgramSub-Division of Research and

Development PolicySub-Division of Planning and

Development Standards

Bidang Prasarana, SaranaKota dan Lingkungan Hidup

Bidang Perekonomian Bidang PemerintahanBidang Program Pembiayaan

dan PembangunanBidang Penelitian dan Statistik

Bidang PembinaanPerencanaan

Subbagian Keuangan

Division of City Infrastructureand Environment

Division of Economic Affairs Division of GovernmentDivision of DevelopmentProgram and Financing

Division of Research andStatistics

Division of Planning Guidance

Secretary Subbagian Kepegawaian

SecretariatSub-division of Program and Budgeting

Subbagian Proram dan Anggaran

Sub-division of Finance

Sub-division of General Affairs

Subbagian Umum

Sub-division of Human ResourcesVice Head of Agency

Head of Agency

Figure 1.1-7 Organization Chart of BAPPEDA, DKI Jakarta BAPPEDA, as mentioned above, is in charge to coordinate the preparation of spatial plan and regional development plans with the central government and local implementation agencies, and to evaluate the project implementation in the administration area. (2) Public Works Agency

The government of Jakarta Special Province consist of eight (8) boards/divisions and twenty (20) agencies. The Public Works Agency of DKI Jakarta deals with the public investment projects in the province, such as planning, management and supervision of road, bridge and water resources with the following tasks. To formulate the policy on the development, management, utilization and operation and

maintenance of road, bridge and water resources To prepare technical standards and guidance on the development, management, utilization and

operation and maintenance of road, bridge and water resources To research the road, bridge and water resources To provide public services and equipment for the road, bridge and water resources To develop and conserve the coastal area To accelerate the community participation to the development and management of the road,

bridge and water resources To enforce the legal basis for the development and management of the road, bridge and water

resources The organization structure of the agency is shown in Figure 1.1-8.


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Technical Implementation Unit

Unit Pelaksana Teknis

Municipality Public Works Office of Road

Suku Dinas Pekerjaan Umum JalanKota Administrasi

Municipality Public Works Office of WaterResources

Suku Dinas Pekerjaan Umum Tata Air KotaAdministrasi

Regency Public Works Office

Suku Dinas Pekerjaan UmumKab. Administrasi



Subbagian Keuangan

Sub-division of Program and BudgetingSecretariat

Secretary

Subbagian Umum

Sub-division of General Affairs

Sub-division of Human ResourcesSubbagian Kepegawaian

Implementation and Control of BridgeMaintenance

Seksi Pelaksanaan dan PengendalianPemeliharaan Jembatan

Infrastructure and Utility NetworkManagement Division

Bidang Bina Prasarana dan SaranaJaringan Utilitas

Public Service and Permit Section

Seksi Pelayanan Masyarakat dan Perizinan

Implementation and Control of Permit Section

Seksi Pelaksanaan dan PengendalianPerizinan

Procurement and Security of Land for PublicWorks Infrastructure Section

Seksi Pengadaan dan Pengamanan LahanPrasarana Pekerjaan Umum

Seksi Pelansanaan dan PengendalianPeningkatan Jalan

Seksi Pelansanaan dan PengendalianPeningkatan Jembatan

Seksi Pelaksanaan dan Pengendalian Prasaranadan Sarana Pengendalian Banjir

Seksi Pemeliharaan Prasarana dan SaranaPengendalian Banjir

Road and Bridge Maintenance Division

Bidang Pemeliharaan Jalan dan Jembatan

Planning of Road and Bridge MaintenanceSection

Seksi Perencanaan Pemeliharaan Jalan danJembatan

Implementation and Control of RoadMaintenance

Seksi Pelaksanaan dan PengendalianPemeliharaan Jalan

Seksi Pelaksanaan dan PengendalianPembangunan Jalan

Seksi Pelaksanaan dan PengendalianPembangunan Jembatan

Seksi Pelaksanaan dan Pengendalian Konservasidan Pendayagunaan Sumber Daya Air

Seksi Pemeliharaan Prasarana dan SaranaKonservasi dan Pendayagunaan Sumber Daya Air

Implementation and Control of RoadDevelopment Section

Implementation and Control of IntersectionSection

Implementation and Control of Flood ControlFacility/Infrastructure Section

Management of Flood ControlFacility/Infrastructure Section

Seksi Perencanaan Jalan Seksi Perencanaan JembatanSeksi Perencanaan Pengelolaan Sumber

Daya AirSeksi Perencanaan Pemeliharaan Sumber

Daya Air

Implementation and Control of RoadConstruction Section

Implementation and Control of Bridge SectionImplementation and Control of Conservation and

Utilization of Water Resources SectionManagement of Infrastructure, Conservation

and Water Utilization Section

Bidang Jalan Bidang Jembatan Bidang Pengelolaan Sumber Daya Air Bidang Pemeliharaan

Road Planning Section Bridge Planning SectionPlanning of Water Resouces Development

SectionPlanning of Water Resouces Management

Section

Road Division Bridge Division Water Resources Development Division Water Resouorces Management Division

Head of Agency

Vice Head of Agency

Figure 1.1-8 Organization Chart of Public Works Agency, DKI Jakarta The number of officials is 1,259 personnel, and Water Resources Development Division and Water Resources Management Division consists of 40 and 184 officials respectively. Those divisions deal with the development, management and maintenance of river facilities, pond (Situ) and inland water drainage facilities in the province. (3) Spatial Planning Agency

Spatial Planning Agency has responsibility to formulate and disseminate the provincial spatial plan of DKI Jakarta with the following tasks. The organization structure of the agency is shown in Figure 1.1-9. To formulate, implement and coordinate the provincial spatial plan To mediate the dispute on the land use To accelerate the land use contributing to the public interest To establish the information system on the spatial plan To enforce the legal basis on the spatial plan To provide the technical supports on the spatial plan

Municipality Spatial Planning Office

Suku Dinas Tata Ruang Kota Administrasi

Regency Spatial Planning Office

Suku Dinas Tata Ruang Kab. Administrasi

Seksi Perencaan MikroRuang KotaSeksi Pengkajian Arsitektur dan Kualitas

Runag KotaSeksi Perencanaan Utilitas Kota

Seksi Pemantauan dan Penerapan RencanaKota

Seksi Kebijakan dan Hukum Pertanahan Seksi Evaluasi Rencana Kota

Micro City Planning SectionAssessment of Architecture and City Quality

SectionCity Utility Planning Section

Monitoring and Implementation of CityPlanning Section

Land Policy and Law Section

Macro City Planning Section

City Planning Evaluation Section

Seksi Perencanaan Pengembangan RuangKota dan Pemugaran

Seksi Pengkajian dan LegalisasiRancangan Ruang Kota dan Bangunan

Seksi Perencanaan Sarana Kota danMitigasi

Seksi Geoinformasi dan Jaringan DataSpatial

Seksi Penanganan Masalah Pertanahan Seksi Peran Serta Masyarakat

Public Participation Section

Seksi Perencanaan Makro Ruang Kota Seksi Pengkajian Pemanfaatan Ruang KotaSeksi Perencanaan Trnsportasi, Tata Air

dan Tata HijauSeksi Pengukuran Seksi Tatalaksana Pertanahan Seksi Penyuluhan

Planning of City Development and RestoratinSection

Assessment and Legalization of City andBuilding Design Section

Planning of City Infrastructure and MitigationSection

Geoinformation and Spatial Data NetworkSection

Land Issue Control Section

City Planning Division City Land Use DivisionPlanning of City Infrastructure and Facility

DivisionMeasurment and Mapping Division Land Affairs Division

Bidang Perenganaan Ruang Kota Bidang Pemanfaatan Ruang KotaBidang Perencanaan Prasarana dan

Sarana KotaBidang Pengukuran dan Pemetaan Bidang Tata Pertanahan

Land Use Assessment SectionPlanning of Transportation, Water System

and Planting Design Section



Sub-division of FinanceSubbagian Keuangan

Public Participation and Evaluation of CityPlan Division

Bidang Peran Serta Masyarakat danEvaluasi Rencana Kota

Measurement Section Land Administration Section Counselling Section

Head of AgencySub-division of General Affairs

Subbagian Umum

Sub-division of Human ResourcesSecretary Subbagian Kepegawaian

Figure 1.1-9 Organization Chart of Spatial Planning Agency, DKI Jakarta


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51 out of 443 government officials belong to the Planning of Infrastructure and Facility Division, which conducts the planning and implementation of urban infrastructure development. (4) Industry and Energy Agency

In order to enhance the international competitiveness of regional industries and to secure the sustainable energy supply, Industry and Energy Agency of DKI Jakarta has the following roles with organization structure as shown in Figure 1.1-10. To develop, supervise and regulate the industrial development and energy industries To formulate and disseminate the standards on industrial and energy development To develop, supervise and regulate the natural resources including oil, gas and others To provide technical guidance for the industrial and energy development including renewable

energy To collect and analyze data on utilization of oil, gas and electricity To set street lamps To formulate annual budget plan To implement dissemination activity on industrial and energy development

Industry and Energy Sub-Division for CityAdministration


Suku Dinas Perindustrian dan Energi KotaAdministrasi

Unit Pelaksanaan Teknis

Head of Agency

Functional Group


Seksi Pengawasan dan Pengendalian Seksi Pengawasan dan PengendalianSeksi Pengawasan dan Pengendalian

MineralSeksi Pengawasan dan Pengendalian

EnergiSeksi Pengawasan dan Pengendalian

Pencahayaan

Monitoring and Control Section Monitoring and Control Section Mineral Monitoring and Control Section Energy Monitoring and Control Section Lighting Monitoring and Control Section

Seksi Industri Agro dan Kimia Seksi Industri Kecil dan Menengah Seksi Pelayanan Mineral Seksi Pelayanan Energi Listrik dan Migas Seksi Logistik

Agriculture and Chemical Industry Section Small and Medium Industry Section Mineral Services Section Electricity and Gas Services Section Logistric Section

Seksi Industri Logam, Mesin, Tekstil danAneka

Seksi Industri Alat Transportasi danTelematika

Seksi Pengembangan MineralSeksi Pengembangan Energi Listrik dan

MigasSeksi Penerangan Jalan dan Sarana Umum

Metal, Machinery, Textile and MiscellaneousSection

Transport and Telecommunication IndustrySection

Mineral Development Section Electricity, Oil and Gas Development Section Street Lighting and Public Facility Section

City Lighting Division

Bidang Industri Logam, Mesin, Tekstil,Aneka dan Industri Agro Kimia

Bidang Industrian Alat Transportasi,Telematika, Kecil dan Menengah

Bidang Pengelolaan MineralBidang Pengelolaan Energi Listrik dan

MigasBidang Pencahayaan Kota



Sub-division of FinanceSubbagian Keuangan

Metal, Machinery, Textile, AssortedChemicals and Agro Industry Division

Transport, Telecommunication, Small andMedium Industry Division

Mineral Management Division Electricity and Gas Management Division

Sub-division of General AffairsSubbagian Umum

Sub-division of Human Resources

Secretary Subbagian Kepegawaian

Figure 1.1-10 Organization Chart of Industry and Energy Agency, DKI Jakarta Industry and Energy Agency formulates the policies, carries out activities for the sustainable industrial development, as well as aims at mitigating the trade-off between the environmental degradation and economic growth and realizing the harmonized industrial growth with natural environment. Therefore, it has focused on the sustainable urban environment including groundwater conservation and the cooperation and collaboration with other agencies for the installation of infiltration wells (Sumur Resapan) in DKI Jakarta. (5) Regional Environmental Management Agency

Based on the organization structure shown in Figure 1.1-11, the Regional Environmental Management Agency of DKI Jakarta has carried out the following tasks. To formulate the government policy for the environmental management To implement the monitoring on environmental management facilities To manage the waste water


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To manage hazardous waste To manage and evaluate the raw water quality To coordinate for the reduction of water pollution and recovery of polluted environment To improve institutional capacity on environmental management To assist, manage and supervise the implementation of environmental impact assessment

(AMDAL) To regulate the waste water management including industrial waste water To provide technical assistance to environment analysis laboratory To implement the test and analysis for the environmental management To enhance the legal regulation on natural environment and groundwater

Kelompok Jajaran Fungsional Unit Pelaksanaan Teknis Kantor Lingkungan Hidup Kabupaten/Kota

Sub-Divisi Mitigasi dan AdaptasiPerubahan Iklim

Sub-Divisi Manajemen Sumber DayaPerkotaan

Sub-Divisi Manajemen Sumber DayaSampah dan Limbah B3

Sub-Divisi Pendidikan Lingkungan

Functional Group Technical Implementation Unit Regency/City Environment Office

Sub-Divisi Manajemen PerencanaanLingkungan

Sub-Divisi PerijinanSub-Divisi Pengendalian Habitat dan

Sanitasi LingkunganSub-Divisi Penegakan Hukum

Sub-Division of Mitigation and Adaptation ofClimate Change

Sub-Division of Urban ResourceManagement

Sub-Division of Solid Waste and B3Wastewater Resource Management

Sub-Division of Environmental Education

Sub-Divisi Konservasi dan RestorasiLingkungan

Sub-Divisi Penilaian Dampak Lingkungan(AMDAL)

Sub-Divisi Sumber Kegiatan PengendalianPencemaran

Sub-Divisi Fasilitas PerselisihanLingkungan

Sub-Division of Environmental ManagementPlanning

Sub-Division of LicensingSub-Division of Habitat Control and

Environmental SanitationSub-Division of Environmental Law

Enforcement

Divisi Konservasi dan ManajemenLingkungan

Divisi Pencegahan Dampak Lingkungandan Manajemen Sumber Daya Perkotaan

Divisi Pengendalian Pencemaran danSanitasi Lingkungan

Divisi Penegakan Hukum Lingkungan

Sub-Division of environmental Conservationand Restoration

Sub-Division of Environmental ImpactAssessment (AMDAL)

Sub-Division of Pollution Source ControlSub-Division of Environmental Dispute

Facility


Sub-Divisi Proram dan Anggaran


Sub-Divisi Keuangan

Division of Environmental Conservation andManagement

Division of Environmental Impact Preservationand Urban Resource Management

Division of Pollution Control andEnvironmental Sanitation

Division of Environmental Law Enforcement

Head of AgencySub-division of General Affairs

Sub-Divisi Umum

Sub-division of EmploymentSecretary Sub-Divisi Pekerjaan

Figure 1.1-11 Organization Chart of Regional Environmental Management Agency, DKI Jakarta

In cooperation with Industry and Energy Agency, Regional Environmental Management Agency plays a key role to accelerate the installation of infiltration wells. As of 2012, more than 120 thousand of infiltration wells and 25 locations of infiltration ponds have been installed in the public facilities. Those infiltration facilities mainly target to contribute for the groundwater preservation, but it can be expected to function as runoff control facility to regulate the rainwater discharge into the river. (6) Building Supervision and Controlling Agency

Building Supervision and Controlling Agency is in charge for the application of building development by private sectors and the issuance of building permits. The main tasks of this agency are as follows. To formulate and disseminate the technical guidelines and standards on building supervision and

controlling To assess the application of building development To supervise and regulate the building development including preserved buildings


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To formulate and disseminate the technical guidelines and standards for building demolishment To provide, utilize and maintain the equipment for building demolishment The organization structure of this agency is as follows.

Seksi Perizinan Pemafaatan

Section for Building Permit in Kecamatan

Seksi Dinas Perizinan BangunanKecamatan

Sub-Division of Administration

Sub-Bidang Tata Usaha

Section for Building Supervision & Control

Seksi Pengawasan & Penertiban Bangunan

Section for Building Permit

Seksi Perizinan Bangunan

Seksi Pengawasan Bangunan

Section for Building Management

Seksi Penertiban Bangunan

Section for Building Control in Kecamatan

Seksi Dinas Pengawasan PenertibanBangunan Kecamatan



Section for Development Permit

Seksi Perizinan Pembangunan

Section for Exploitation Permit

Suku Dinas Pengawasan & PenertibanBangunan Kota Administrasi

Suku Dinas Perizinan Bangunan KotaAdministrasi

Suku Dinas Pengawasan & PenertibanBangunan Kab. Administrasi



Section for Building Supervision

Seksi Perancangan & PelaksanaanInstalasi

Seksi Kelaikan Isntalasi Seksi Kepemilikan Bangunan Seksi Pengaduan & Sanksi

Sub-Agency for Supervisioin and BuildingManagement in City Administration

Sub-Agency for Building Permit in CityAdministration

Sub-Agency for Supervisioin and BuildingManagement in Regency Administration

Seksi Perancangan & PelaksanaanStruktur

Seksi Kelaikan Struktur Seksi Perizinan Pemanfaatan Seksi Penertiban Pemanfaatan

Section for Planning and Implementation ofInstallation

Section for Feasibility of Installation Section for Building Ownership Section for Compliant & Sanction

Seksi Perancangan & PelaksanaanArsitektur

Seksi Kelaikan Arsitektur Seksi Perizinan Pembangunan Seksi Penertiban Pembangunan

Section for Planning and Implementation ofStructure

Section for Feasibility of Structure Section for Exploitation Permit Section for Exploitation Control

Bidang Pengawasan Pembangunan Bidang Pengawasan Kelaikan Bidang Perizinan Bidang Penertiban

Section for Planning and Implementation ofArchitecture

Section for Feasibility of Architecture Section for Development Permit Section for Building Control

SecretariatSub-Division of Program and Budgeting

Sub-Bagian Proram dan Anggaran

Sub-Division of Finance

Sub-Bagian Keuangan

Building Supervision Division Building Feasibility Division Permit Division Controlling Division

Head of AgencySub-Division of General Affairs

Sub-Bagian Umum

Sub-Division of Human Resources

Secretary Sub-Bagian Kepegawaian

Figure 1.1-12 Organization Chart of Building Supervision and Controlling Agency, DKI Jakarta

According to Governor Regulation No. 20/2013 on Infiltration Well (Sumur Resapan), it is required for the private development to install runoff control facilities depending on the development area in the process of building permits. Therefore, since it is practical to supervise the installation of runoff control facilities in the process of building permits, the agency has a key role as a responsible agency for building permission. 1.1.7 Government of West Java Province

(1) Regional Development Planning Agency

Regional Development Planning Agency of West Java Province has the following tasks including the formulation and implementation of provincial development plans.


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To coordinate for the formulation of spatial plan (RTRW), long-term regional development plan (RPJMD), mid-term regional development plan (RPJMD), and annual regional development plan (RKPD)

To implement the supervision, monitoring and evaluation of project activities contributing to the economic, social and cultural development in the province

To coordinate with national, regency and city development plans The organization structure of the agency is shown in Figure 1.1-13.

Komite Perencanaan Kelompok Jajaran Fungsional Unit Pelaksana Teknis Badan (UPTB)

Planning Committee Functional Group Technical Implementation Unit Agency

Bidang Pendanaan PembangunanBidang Penelitian, Pengendalian dan

EvaluasiBidang Pemerintahan

Bidang Fisik Bidang Ekonomi Bidang Sosial dan Budaya

Division of Development Funding Division of Research, Control and Evaluation Division of Government

Secretaris Subbagian Keuangan

Sub-Division of Human Resources

Subbagian Kepegawaian

Division of Physical Division of Economy Division of Social Affairs and Culture

Head of Agency

Kepala DinasSub-Division of PlanningSubbagian Perencanaan

Secretary Sub-Division of Finance

Figure 1.1-13 Organization Chart of Regional Development Planning Agency, West Java Province

(2) Water Resources Management Agency

The Water Resources Management Agency in West Java province is in charge of policy formulation and management of water resources in the province, including Bogor regency, Bogor city and Depok city. The Agency has the following tasks. To formulate the policy and technical guidance on the water resources management To provide the technical supports on the water resources management and utilization to the

regency and city governments To implement the supervision, regulation and evaluation on the water resources management The organization structure of the Agency is shown in Figure 1.1-14.


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Balai Data dan Informasi Sumber Daya Air Balai PSDA WS Ciliwung-Cisadane

Survey Section Irrigation Construction Section

Bidang Pekayasa Teknis Bidang Kontruksi

Seksi Survey Seksi Konstruksi Irigasi

Water Resources Data and Information OfficeWater Resources Utilization Office in

Ciliwung-Cisadane River Basin

Seksi Desain Irigasi Seksi Konstruksi SUNDAWAPAN

Irrigation Design SectionRiver, Lake, Reservior and Coastal

Construction Section

Seksi Desain SUNDAWAPAN Seksi Tata Teknik

Water Resources Utilization Office inCimanuk-Cisanggarung River Basin

Balai PSDA WS Cimanuk-Cisanggarung

Water Resources Utilization Office inCitanduy River Basin

Balai PSDA WS Citanduy

Water Resources Utilization Office inCiwulan-Cilaki River Basin

Balai PSDA WS Ciwulan-Cilaki

Balai PSDA WS Cisadea-Cibareno

Water Resources Utilization Office in CitarumRiver Basin

Balai PSDA WS Citarum

Seksi Kerjasama

Cooperation Section

Sub-Division of Human Resources and General Affairs

Subbagian Kepegawaian dan Umum

Water Resources Utilization Office inCisadea-Cibareno River Basin

Seksi Pengawasan dan Pengendalian

Supervision and Control Section

Seksi Operasi Seksi Saran Teknik

Operation Section Technical Recommendation Section

Utilization Management Division

Bidang Operasi dan Pemeliharaan

Seksi Pemeliharaan

Maintenance Section

Seksi Bencana Alam SDA

River, Lake, Reservior and Coastal DesignSection

Engineering Section Water-related Disaster Section

Sub-Division of Planning and Program

Subbagian Perencanaan dan Program

Bidang Bina Manfaat


Subbagian Keuangan

Technical Engineering Division Construction Divisoin Operation and Maintenance Division

Head of Agency

Kepala Dinas

Secretary

Secretaris

Figure 1.1-14 Organization Chart of Water Resources Management Agency, West Java Province

Under the Water Resources Management Agency, the regional offices in the river basins are set up to implement the water resources management policy. One of the regional offices is Water Resources Utilization Office in Ciliwung-Cisadane river basin which mainly conducts the operation and maintenance of Katulampa Gate. (3) Housing and Settlement Agency

The Housing and Settlement Agency executes the policy formulation, instruction and evaluation on provincial spatial plan, land use, settlement area development in the province. The main tasks of the Agency are listed below. To formulate the policy on provincial spatial plan, land use and settlement area development To formulate the technical standards, specifications, necessary procedures and evaluation criteria

for the above works To formulate and disseminate the technical guidance for the above works To coordinate the regency and city governments on the above works The organization structure of the Agency is shown in Figure 1.1-15.


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Soil, Building Material and ConstructionSection

Seksi UJI Tanah Bahan Bangunan danKonstruksi

Water and Environment Section

Seksi UJI Air dan Lingkungan

Planning and Evaluation Section

Seksi Perencanaan dan Evaluasi

Operational Waste Process and WasteDespose Section

Seski Operasional Tempat Pengolorahandan Pemrosesan Akhir Sampah


Technical Implementation Unit of Agency forResearch of Construction and Environmental

Quality

Technical Implementation Unit of Agency forRegional Waste Management of West Java

Sub-Department of Administration


UPTD Balai Pengujian Mutu Konstruksidan Lingkungan

UPTD Balai Pengelolaan Sampah RegionalJawa Barat

Sub-Department of Administration

Seksi Pengendalian dan Pengawasan Seksi Tata Bangunan dan Lingkungan Seksi Pengembangan Kawasan Seksi Pengaturan dan Pengawasan

Seksi Kawasan Strategis Seksi Penyehatan Lingkungan Permukiman Seksi Perumahan Perdesaan Seksi Pemberdayaan

Controlling and Supervision Section Building and Environment Section Area Development Section Arrangement and Supervision Section

Seksi Tata Perkotaan dan Perdesaan Seksi Air Minum Seksi Perumahan Perkotaan Seksi Bina Teknik dan Gedung Negara

Strategic Area Section Settlement Section Rural Housing Section Utilization Section

Bidang Tata Ruang Kawasan Bidang Permukiman Bidang Perumahan Bidang Jasa Konstruksi

Urban and Rural Spatial Planning Section Drinking Water Section Urban Housing Section Technical and Management Section

Sub-Division of Human Resources and General Affairs

Subbagian Kepegawaian dan Umum

Regional Spatial Planning Division Settlement Division Housing Division Construction Service Division

Secretary Sub-Division of FinanceJabatan Fungsional

Functional Group

Head of Agency

Kepala DinasSub-Division of Planning and Program

Subbagian Perencanaan dan Program

Secretariat Subbagian Keuangan

Figure 1.1-15 Organization Chart of Housing and Settlement Agency, West Java Province 1.1.8 Government of Bogor Regency


Regional Development Planning Agency of Bogor Regency is mandated to coordinate among related agencies for the formulation and implementation of regional development plans, and to monitor and evaluate the projects in the development plans. The organization structure of this agency is shown as follows.


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UPT


Sub Bidang Pendanaan Pembangunan Sub Bidang Industri dan Dunia Usaha Sub Bidang SosialSub Bidang Tata Ruang dan Lingkungan

HidupSub Bidang Monitoring dan Evaluasi

Sub Bidang Pemerintahan Sub Bidang Pertanian dan Pariwisata Sub Bidang Pendidikan dan Kesehatan Sub Bidang Sarana Prasarana Sub Bidang Penelitian dan Statistik

Sub-Division of Development Funding Sub-Division of Industry and Trade Sub-Division of Social AffairsSub-Division of Spatial Planning and

EnvironmentSub-Division of Monitoring and Evaluation

Bidang Pemerintahan dan PendanaanPembangunan

Bidang Ekonomi Bidang Kesejahteraan Rakyat dan SosialBidang Sarpras, Tata Ruang Lingkungan

HidupBidang Penelitian dan Evaluasi

Sub-Division of Governance Sub-Division of Agricutlure and Tourism Sub-Division of Education and Health Sub-Division of Facilities and Infrastructure Sub-Division of Research and Statistics

SecretariatSub-Division of Finance

Subbagian Keuangan

Division of Governance and DevelopmentFunding

Division of Economy Division of Social and WelfareDivision of Facilities and Infrastructure,

Spatial Planning and EnvironmentDivision of Research and Evaluation

Head of AgencySub-Division of Program and Reporting

Sub Bagian Program dan Pelaporan

Sub-Division of General Affairs

Secretary Sub Bagian Umum dan Kepegawaian

Figure 1.1-16 Organization Chart of Regional Development Planning Agency, Bogor Regency

(2) Highways and Irrigation Agency

Highways and Irrigation Agency of Bogor Regency deals with the maintenance of the road, bridge and irrigation facilities in the regency. Regarding the water resources management, the Control of Irrigation and Water Resources Section under the Control and Supervision Division has responsibility for implement the following tasks. To manage the irrigation and water resources infrastructure To provide the public services on the supply, allocation and utilization of water resources To provide the public service on the development, utilization, repair and demolishment of

irrigation facilities To implement the rehabilitation and reconstruction of damaged irrigation facilities by the flood

disaster As shown above, the Agency provides the public services for the maintenance of irrigation facilities and utilization of agricultural water. The organization chart of the Agency is shown in Figure 1.1-17.


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Functional Group

UPT


Seksi Pengawasan Seksi Jasa KonstruksiSeksi Pembangunan dan Rehabilitasi

Irigasi dan Sumber Daya AirSeksi Pemeliharaan Irigasi dan Sumber

Daya Air

Seksi Pengendalian Irigasi dan SumberDaya Air

Seksi Perencanaan Teknik Irigasi danSumber Daya Air

Seksi Pembangunan dan RehabilitasiJembatan

Seksi Pemeliharaan Jalan dan Jembatan

Supervision Section Construction Service SectionConstruction and Rehabilitation of Irrigation

and Water Resources SectionMaintenance of Irrigation and Water

Resources Section

Seksi Pengendalian Jalan dan JembatanSeksi Perencanaan Teknik Jalan dan

JembatanSeksi Pembangunan dan Rehabilitasi Jalan Seksi Pengelolaan

Control of Irrigation and Water ResourcesSection

Technical Planning of Irrigation SectionConstruction and Rehabilitation of Bridge

SectionMaintenance of Road and Bridge Section

Bidang Pengendalian dan PengawasanBidang Perencanaan Teknik dan Jasa

KonstruksiBidang Pembangunan dan Rehabilitasi Bidang Pengelolaan dan Pemeliharaan

Control of Road and Bridge SectionTechnical Planning of Road and Bridge

SectionConstruction and Rehabilitation of Road

SectionManagement Section

Secretaris Subbagian Umum dan Kepegawaian

Sub-Division of FinanceSubbagian Keuangan

Control and Supervision DivisionTechnical Planning and Construction

Services DivisionConstruction and Rehabilitation Division Management and Maintenance Division

Secretary Sub-Division of General Affairs and Human Resources

Head of Agency

Kepala DinasSub-Division of Program and ReportSubbagian Program dan Pelaporan

Figure 1.1-17 Organization Chart of Highways and Water Resources Agency, Bogor Regency

(3) Building and Settlement Agency

The Building and Settlement Agency is authorized to issue the permission on settlement area development and drainage facilities in the settlement area. The following tasks are carried out by the Agency with the structure of organization (see in Figure 1.1-18). To formulate and guide the technical standards on the settlement area development To manage licensing and building permission for the settlement area development To manage the infrastructure and facilities in the settlement area To manage licensing and building permission for non-housing development


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Ka Sub-Bag. TU UPT Tata BangunangWilayah Ciawi

TIU of Building Management of Ciawi AreaTIU of Building Management of Cibinong

AreaTIU of Building Management of Leuwiliang

Area

UPT Tata Bangunan Wilayah Ciawi UPT Tata Bangunan Wilayah Cibinong UPT Tata Bangunan Wilayah Leuwiliang

Sub-Bag. TU UPT Tata Bangunang WilayahCibinong

Sub-Bag. TU UPT Tata Bangunang WilayahLeuwiliang

Ka UPT Tata Bangunan Wilayah Ciawi UPT Tata Bangunan Wilayah Cibinong UPT Tata Bangunan Wilayah Bangunan

Head of Sub-dept. Administration TIU ofBuilding Management of Ciawi Area

Head of Sub-dept. Administration TIU ofBuilding Management of Cibinong Area

Head of Sub-dept. Administration TIU ofBuilding Management of Leuwiliang Area

Head of TIU of Building Management ofCiawi Area

Head of TIU of Building Management ofCibinong Area

Head of TIU of Building Management ofLeuwiliang Area

Seksi Sarana PrasaranaSeksi Pengendalian Bangunan Non

PerumahanSeksi Kemitraan dan SDM

Section of Construction Section of Housing Supervision Section of Construction Service

Seksi Pembangunan Seksi Pengawasan Perumahan Seksi Jasa Konstruksi

Technical Implementer Unit (TIU)

UPT

Bidang Perumahan dan Pemukiman Bidang Tata Bangunan Bidang Jasa Konstruksi

Section of Facility and InfrastructureSection of Controlling of Non-housing

BuildingSection of Partnership and Human Resources

Secretariat Subbagian Umum dan Kepegawaian


Subbagian Keuangan

Division of Housing and Settlement Division of Building Management Division of Construction Service

Secretary Sub-Division of General Affairs and Human Resources

Head of Agency

Kepala DinasSub-Division of Programming and Reporting

Subbagian Program dan Pelaporan

Figure 1.1-18 Organization Chart of Building and Settlement Agency, Bogor Regency 1.1.9 Government of Bogor City


Regional Development Planning Agency of Bogor City has carried out the coordination for the formulation of regional development plans and the monitoring and evaluation of the projects in those plans. The organization structure is shown in Figure 1.1-19.


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Functional Group

Sub-Bidang Sarana dan Prasarana Kota Sub-Bidang Pemerintahan Sub-Bidang Statistik dan Pelaporan Sub-Bidang Penelitian dan Pengembangan

Sub-Bidang Tata Ruang dan LingkunganHidup

Sub-Bidang Sosial dan Budaya Sub-Bidang Pendanaan Pembangunan Sub-Bidang Ekonomi

Sub-Division of City Infrastructure Sub-Division of Governance Sub-Division of Statistics and Reporting Sub-Division of Research and Development

Bidang Fisik dan Prasarana Bidang Sosial Budaya dan PemerintahanBidang Statistik , Pelaporan dan Pendanaan

PembangunanBidang Ekonomi, Penelitian dan

Pengembangan

Sub-Division of Spatial Planning andEnvironment

Sub-Division of Society and Culture Sub-Division of Development Funding Sub-Division of Economy


Sub-Division of Program and Report


Division of Physical and Infrastructure Division of Society, Culture and GovernanceDivision of Statistics, Reporting and

Development FundingDivision of Economy, Research and

Development

Head of Agency

Kepala DinasSub-Division of General Affairs and Human Resources

Subbagian Umum dan Kepegawaian


Figure 1.1-19 Organization Chart of Regional Development Planning Agency, Bogor City (2) Highways and Water Resources Agency

The development and management of regency road, bridge and irrigation facilities and utilization of irrigation water is conducted by the Highways and Water Resources Agency. The main tasks of the Agency are shown below. To formulate the technical guidance on the road and irrigation facilities To develop, instruct and maintain the road and irrigation facilities To provide the public services on the road and irrigation facilities Figure 1.1-20 shows the organization structure of the Agency.


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Seksi Pembangunan Drainase Seksi Pemeliharaan Drainase

Functional Group

Seksi Pembangunan Jembatan Seksi Pemeliharaan Jembatan Seksi Pengairan

Drainage Construction Section Drainage Maintenance Section

Seksi Pembangunan Jalan Seksi Pemeliharaan Jalan Seksi Sumber Daya Air

Bridge Construction Section Bridge Maintenance Section Irrigation Section

Bidang Pembangunan Jalan, Jembatan danDrainase

Bidang Pemeliharaan Jalan, Jembatan danDrainase

Bidang Pengelolaan Sumber Daya Air danPengairan

Road Construction Section Road Maintenance Section Water Resources Section


Sub-Division of Program and Report


Construction of Road, Bridge and DrainageDivision

Maintenance of Road, Bridge and DrainageDivision

Water Resources and Irrigation Division


Head of Agency

Kepala DinasSub-Division of General Affairs and Human Resources


Figure 1.1-20 Organization Chart of Highways and Water Resources Agency, Bogor City 1.1.10 Government of Depok City


The main tasks of Regional Development Planning Agency of Depok City are as follows. To coordinate for the formulation of spatial plan (RTRW), long-term regional development plan

(RPJMD), mid-term regional development plan (RPJMD), and annual regional development plan (RKPD)

To formulate the technical guidance for the formulation of the above plans To strengthen the capacity to formulate the above plans The organization structure of the agency is shown below.


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Functional Group



UPT

Sub Bidang Pengendalian Program Sub Bidang Sosial Budaya Sub Bidang Penanaman Modal Sub Bidang Infrastruktur

Sub Bidang Perencanaan Program danData

Sub Bidang Pemerintahan Sub Bidang Umkm Sub Bidang Pengembangan Perkotaan

Sub-Division of Programming Control Sub-Division of Socio-Culture Sub-Division of Investment Sub-Division of Infrastructure

Bidang Perencanaan dan PengendalianProgram

Bidang Perencanaan Sosial Bidang Perencanaan Ekonomi Bidang Perencanaan Fisik Prasarana

Sub-Division of Program Planning andData

Sub-Division of Governance Sub-Division of General Economy Sub-Division of Urban Development


Division of Planning and ProgrammingControl

Division of Social Planning Division of Economic PlanningDivision of Physical Infrastructure

Planning

Head of Agency

Kepala Dinas


Sub-Division of General Affairs, Planning,Evaluation and Reporting


Figure 1.1-21 Organization Chart of Regional Development Planning Agency, Depok City (2) Highways and Water Resources Agency

Highways and Water Resources Agency of Depok city government carries out the development, management and guide the road, irrigation facility, pond (Situ), small river channel in the city. The tasks of the Agency are: To formulate the technical guidance on the development and management of road, irrigation

facility and its surrounding areas To develop, instruct and maintain the road and irrigation facilities To provide the public services on the road, irrigation facilities and surrounding environment The organization structure of the Agency is shown in Figure 1.1-22.


UPT

Technical Development and Control of WaterResources Section

Seksi Bina Teknik dan PengendalianJSumber Daya Air

Functional Group


Seksi Bina Teknik dan Pengendalian Jalandan Jembatan

Seksi Bina Teknik dan Pengendalian JalanLingkungan

Seksi Pemeliharaan Jalan dan Jembatan Seksi Pemeliharaan Jalan Lingkungan Seksi Pemeliharaan Sumber Daya Air

Technical Development and Control of Roadand Bridge Section

Technical Development and Control of RoadEnvironment Section

Seksi Pembangunan Jalan dan Jembatan Seksi Pembangunan Jalan Lingkungan Seksi Pembangunan Sumber Daya Air

Road and Bridge Maintenance Section Road Maintenance Environment Section Water Resources Management Section

Bidang Jalan dan Jembatan Bidang Jalan Lingkungan Bidang Sumber Daya Air

Road and Bridge Development Section Road Development Environment Section Water Resources Development Section


Road and Bridge Division Road Environment Division Water Resources Division


Head of Agency

Kepala DinasSub-Division of General Affairs, Planning, Evaluation and Report

Subbagian Umum, Perencanaan, Evaluasi dan Pelaporan

Figure 1.1-22 Organization Chart of Highways and Water Resources Agency, Depok City


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(3) Building Management and Settlement Agency

The Building Management and Settlement Agency deals with formulation and implementation of city spatial plan, and manage and supervise the building permission for the settlement area development. The tasks to be conducted by the Agency are listed below. To formulate and implement the city spatial plan To manage and coordinate the land use and development in accordance with city spatial plan To provide the technical guidance for the settlement area development The following chart shown in Figure 1.1-23 is the organization structure of the Agency.

Head of Agency

Kepala Dinas

Secretary


Secretaris

Subbagian Keuangan

Settlement and Building ManagementDivision

Spatial Planning Division Supervision and Control Division

Spatial Planning Section Building Control Section

Bidang Permukiman dan Tata Bangunan Bidang Tata Runag Bidang Pengawasan dan Pengendalian

Building Management Section Land Utilization Section Building Inventory Section

Sub-unit for UPTD Office

Kasubag Tata Usaha UPTD Rusunawa

Sub-unit for UPTD Administration

Sub-division of Genaral Affairs, Planning,Evaluation and Report

Subbagian Umum Perenc., Evaluasi danPelaporan

Kelompok Jabatan FungsionalFunctional Group

UPTD

Regional Technical Implementation Unit

Sekis Perumahan dan Permukiman Seksi Perencanaan Ruang Seksi Penertiban Bangunan

Seksi Tata Bangunan Seksi Pemanfaatan Ruang Seksi Pendataan Bangunan

Housing and Settlement Section

Sub-unit for Clean Water Sub-unit for Clean Water Administration

Kasubag UPTD Air Bersih Kasubag Tata Usaha UPTD Air Bersih

Kasubag UPTD Rusunawa

Figure 1.1-23 Organization Chart of Building Management and Settlement Agency, Depok City

1.2 Role Allocation of Organizations related to Comprehensive Flood Management

In order to implement and disseminate the Comprehensive Flood Management Plan (CFMP) in the targeted river basin, the structural measures (flood control measures and runoff control measures) non-structural measures (land use regulation and disaster mitigation measures) are required to be conducted. For the implementation of those measures, many government agencies in central, provincial, regency and city levels have their own mandates on the flood management, spatial planning, regional development, and so on. Based on examination of the tasks and functions of the above organizations and a series of discussions with related organizations and counterpart agencies, the roles allocated to the related organizations for the CFM implementation are summarized in Table 1.2-1.


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Table 1.2-1 Role Allocation of Organizations related to CFM

Measure Related Organization Role Flood Control Measure

River Improvement (dredging, embankment, widening)

DGWR, PU Policy, regulation, guidance and supervision BBWS Ciliwung-Cisadane, DGWR, PU Planning, implementation, O&M (Ciliwung main

river, WBC, main river/tributary outside of DKI JKT)

Public Works Agency, DKI JKT Planning, implementation, O&M (tributary in DKI JKT)

Weir DGWR, PU Policy, regulation, guidance and supervision BBWS Ciliwung-Cisadane, DGWR, PU Planning, implementation, O&M (Ciliwung main


Gate DGWR, PU Policy, regulation, guidance and supervision BBWS Ciliwung-Cisadane, DGWR, PU Planning, implementation, O&M (Ciliwung main


Public Works Agency, DKI JKT Planning, implementation, O&M (tributary in DKI JKT)

Diversion Channel DGWR, PU Policy, regulation, guidance and supervision BBWS Ciliwung-Cisadane, DGWR, PU Planning, implementation, O&M (Ciliwung main


Short Cut Channel DGWR, PU Policy, regulation, guidance and supervision BBWS Ciliwung-Cisadane, DGWR, PU Planning, implementation, O&M (Ciliwung main


Dam DGWR, PU Policy, regulation, guidance and supervision BBWS Ciliwung-Cisadane, DGWR, PU Planning, implementation, O&M (Ciliwung main


Retarding/ Regulating Pond

- -

Runoff Control Measure

Inland Water Drainage (pump, etc.)

DGWR, PU Policy, regulation, guidance and supervision DGHS, PU Policy, regulation, guidance and supervision BBWS Ciliwung-Cisadane, DGWR, PU Planning, implementation, O&M in DKI JKT

(based on MoU) Public Works Agency, DKI JKT Planning, implementation, O&M in DKI JKT

(based on MoU) Storage/Infiltration

Facility DGWR, PU Policy, regulation, guidance and supervision

DGHS, PU Policy, regulation, guidance and supervision BBWS Ciliwung-Cisadane, DGWR, PU Planning, implementation, O&M Public Works Agency, DKI JKT Planning, implementation, O&M Industry and Energy Agency, DKI JKT Planning, implementation, O&M Regional Environmental Management

Agency, DKI JKT Coordination, supervision

Water Resources Management Agency, West Java Province

Planning, implementation, O&M

Highways and Irrigation Agency, Bogor Regency


Building and Settlement Agency, Bogor Regency

Dissemination

Highways and Water Resources Agency, Bogor City


Building and Settlement Agency, Bogor City

Dissemination

Highways and Water Resources Agency, Depok City


Building and Settlement Agency, Depok City

Dissemination

Pond (Situ) DGWR, PU Policy, regulation, guidance and supervision BBWS Ciliwung-Cisadane, DGWR, PU Planning, implementation, O&M (based on MoU) Public Works Agency, DKI JKT Planning, implementation, O&M (based on MoU) Water Resources Management Agency,

West Java Province O&M (only small agricultural pond)


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Measure Related Organization Role

Watershed Management

Forestry Agency, West Java Province Policy, regulation, guidance

Land Use Regulation

Land Development Control

DGSP, PU Policy, regulation, guidance, planning, supervision Spatial Planning Agency, DKI JKT Policy, regulation, guidance, planning, supervision

Building Supervision and Controlling Agency, DKI JKT

Permission, supervision

Housing and Settlement Agency, West Java Province

Policy, regulation, guidance, planning, supervision

Building and Settlement Agency, Bogor Regency


Building and Settlement Agency, Bogor City


Building and Settlement Agency, Depok City


Disaster Mitigation Measure

Rainfall/Water Level Observation

BBWS Ciliwung-Cisadane, DGWR, PU O&M (observation, record), report

Flood Forecasting & Warning

DGWR, PU Observation BBWS Ciliwung-Cisadane, DGWR, PU Observation, report Flood Hazard Map DGWR, PU Preparation, dissemination Coordination Coordinating Ministry of Economic

Affairs Inter-organizational and inter-regional coordination on runoff control measures

BAPPENAS Inter-organizational and inter-regional coordination on preparation of development plans

TKPSDA WS Ciliwung-Cisadane Preparation of POLA and Rencana, report ot minister, monitoring and evaluation of activity implementation based on POLA and Rencana

DCA JABODETABEKJUR Subsidy to local governments surrounding DKI JKT


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CHAPTER 2 RELATED LEGISLATIVES ON COORDINATION INSTITUTION

2.1 Outline of Legislatives related to Establishment of Coordination Institution

In Indonesia, based on Law No. 7/2004 on Water Resources, several legislatives such as Government Regulation, Presidential Regulation and Minister Regulation have been formulated regarding the establishment of water resources council and coordination team of water resources and river basin management (TKPSDA WS) as coordination institutions for the water resources management. The related legislatives are shown in Table 2.1-1.

Table 2.1-1 Related Legislatives on Coordination Institution

Legislative Purpose

Law No. 7/2004 Management and Conservation of Water Resources

Government Regulation No. 42/2008 Water Resources Management

Presidential Regulation No. 12/2008 Establishment of National/Provincial/Regency/City Water Resources Council

Minister of Public Works Regulation No. 4/PRT/M/2008

Guideline on Establishment of National/Provincial/Regency/City Water Resources Council and TKPSDA WS

In accordance with the above legislatives, the National Water Resources Council was established in May, 2010. Moreover, in DKI Jakarta province and West Java province, the targeted river basin of JICA Project, the Provincial Water Resources Councils were set up in October 2010 and August 2010 respectively for the discussion and coordination on the water resources management and flood management among the related organizations. Furthermore, in the Solo river basin and Brantas river basin, TKPSDA WS were formulated in February 2009 in accordance with Minister of Public Works Regulations. In the 6 river basins in Jakarta metropolitan area, based on the Minister of Public Works Regulation No. 594/KPTS/M/2010 on Establishment of Coordination Team of Water Resources and River Basin Management in Cidanau-Ciujung-Cidurian-Cisadane-Ciliwung-Citarum River Basins, TKPSDA WS 6Ci was established. 2.2 Law No. 7/2004 on Water Resources

Law No. 7/2004 is a fundamental legislative for water resources management consisting of 18 chapters and 100 articles regarding the conservation and utilization of water resources including surface water, storm water and sea water. Table 2.2-1 shows the composition of the Law.

Table 2.2-1 Composition of Law No. 7/2004

Chap. 1: General Provisions (Art. 1-12) Chap. 10: Financing (Art. 77-81)

Chap. 2: Authorities and Responsibilities (Art. 13-19) Chap. 11: Rights, Obligations and Roles of the People (Art. 82-84)

Chap. 3: Water Resources Conservation (Art. 20-25) Chap. 12: Coordination (Art. 85-87)

Chap. 4: Water Resources Utilization (Art. 26-50) Chap. 13: Dispute Settlement (Art. 88-89)

Chap. 5: Control of Water Damaging Potential (Art. 51-58) Chap. 14: Public and Organizational Claim (Art. 90-92)

Chap. 6: Planning (Art. 59-62) Chap. 15: Investigation (Art. 93)

Chap. 7: Implementation of Construction, Operation and Maintenance (Art. 63-64)

Chap. 16: Penalty Provisions (Art. 94-96)

Chap. 8: Water Resources Information System (Art. 65-69) Chap. 17: Transfer Provisions (Art. 97-98)

Chap. 9: Empowerment and Supervision (Art. 70-76) Chap. 18: Closing Provisions (Art. 99-100)

According to the Law, the water resources management policy (POLA) shall be formulated in the unit of river basin (Chapter 1, Article 11), and POLA shall be discussed in TKPSDA WS (Chapter 12, Article 87). Also, Chapter 12 of the Law stipulates the establishment of coordination institution for the water


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resources management as follows. The main function of coordination institution is to formulate the water resources management

policy (POLA) and plan (Rencana). In accordance with the administrative boundary, the water resources council shall be established. For the water resources management in the river basin unit, TKPSDA WS shall be established. The guideline for the establishment of water resources council and TKPSDA WS shall be defined

by the minister regulation dealing with the water resources management. 2.3 Government Regulation No. 42/2008 on Water Resources Management

The Government Regulation No. 42/2008 is a legal basis for the water resources management based on the Law No. 7/2004. The composition of the regulation is shown in Table 2.3-1.

Table 2.3-1 Composition of Government Regulation No. 42/2008

Chap. 1: General Provisions (Art. 1-3) Chap. 8: Permission on Water Resources Management (Art.95-105)

Chap. 2: Water Resources Management Basis (Art. 4-23) Chap. 9: Water Resources Information System (Art. 106-114)

Chap. 3: Planning of Water Resources Management (Art. 24-41)

Chap. 10: Financing (Art. 115-119)

Chap. 4: Construction, Operation and Maintenance (Art. 42-48)

Chap. 11: Supervision (Art. 120)

Chap. 5: Water Resources Conservation (Art. 49-64) Chap. 12: Penalty Provisions (Art. 121-123)

Chap. 6: Water Resources Utilization (Art. 65-84) Chap. 13: Transfer Provisions (Art. 124-128)

Chap. 7: Control of Water Damaging Potential (Art. 85-94) Chap. 14: Closing Provisions (Art. 129-130)

In Chapter 2 of the Regulation, inter-provincial river basin and water resources management is stipulated as follows. Formulation of Water Resources Management Policy (POLA) (Article 14-23)

POLA is a fundamental framework regarding the harmonization of management, development and conservation of water resources including surface water and groundwater

Objectives, management framework, current river conditions and management strategy of water resources shall be included.

POLA shall be discussed and formulated by TKPSDA WS and approved by the Minister of Public Works.

POLA is a 20-year plan and shall be reviewed every 5 years. Formulation of Water Resources Management Plan (Rencana) (Article 35-39)

Rencana shall be prepared as a detail plan based on POLA. Rencana shall be discussed and formulated by TKPSDA WS and approved by the Minister of

Public Works. Rencana is a 20-year plan and shall be reviewed every 5 years by public consultations.

Formulation of Water Resources Management Program (Article 40-41) Within 5 years after the formulation of Rencana, Program shall be formulated by the related

implementation agencies based on the results of feasibility study. Program is a 5-year plan.

Formulation of Water Resources Management Action Plan (Article 40-41) Action Plan shall be formulated by the related implementation agencies for the

implementation of the Program. Action Plan shall be a detail plan including development and O&M of water resources

infrastructure. Action Plan is a 1-year plan.


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2.4 Presidential Regulation No. 12/2008 on Water Resources Council

Presidential Regulation No. 12/2008 on Water Resources Council stipulates the establishment of provincial/regency/city water resources council, but mainly defines the establishment of national water resources council. 2.5 Minister of Public Works Regulation No. 4/PRT/M/2008 on Guideline for

Establishment of Water Resources Council

Minister of Public Works Regulation No. 4/PRT/M/2008 on the Guideline for Establishment of Water Resources Council in the Level of Province, Regency/City and River Basin is a guideline for the establishment of water resources council in the provincial, regency and city levels and TKPSDA WS in accordance with the Law No. 7/2004. The relations between the Council and TKPSDA WS are described in Figure 2.5-1.

Figure 2.5-1 Relation of Water Resources Council and TKPSDA WS TKPSDA WS in Solo river basin, Brantas river basin and 6 river basins in Jakarta metropolitan area were established as TKPSDA in inter-provincial river basin. As a coordination institution, TKPSDA WS has the following functions. To achieve the inter-regional, inter-sectoral and inter-stakeholder cooperation for the

implementation of integrated water resources management To coordinate the inter-regional, inter-sectoral and inter-stakeholder interests and concerns for the

water resources management To monitor and evaluate the implementation of water resources management For the operation of TKPSDA WS, the head of Provincial Regional Development Planning Agency and the head of Provincial Public Works Agency will be appointed as chairman and vice chairman respectively. Moreover, as sub-organization of TKPSDA WS, the commissions will be established. All the members are required to belong to one commission; however, one member organization can belong to only one commission. The membership of TKPSDA WS shall consist of government and non-government organizations with equal number. The selection criteria of membership are shown below. Government Member:

Representative of central, provincial, regency and city governments from the technical organization for water resources


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Maximum 5 representative organizations shall be selected from the provincial government organizations for water resources management, and maximum 5 officials will be nominated from one organization.

In case of the absence of provincial water resources council, the representative shall be selected from the water resources committee.

In case of the absence of water resources committee, the representative shall be selected from the organization for regional development, water resources management, agriculture, environment and/or forestry.

The member of regency and city governments shall be determined by the secretariat of TKPSDA WS by considering the member of provincial water resources council.

Non-Government Member: The non-government members shall be selected from the following organizations:

- Traditional community organization - Agricultural water user organization - Water supply organization - Industrial water user organization - Fishery organization - Water resources conservation organization - Hydro-power organization - Transportation organization - Tourism and lecture organization - Mining organization - Water-related disaster management organization

The selection procedures shall be fair and transparent. One year is divided into two (2) sessions, and TKPSDA WS is required to hold meetings at least two (82) times/session and four (4) times/year, to report the agenda and results of two (2) meetings (one meeting/session) to the Minister of Public Works. Moreover, regarding the operation of TKPSDA WS, the operation procedure and work procedure of TKPSDA WS shall be prepared.


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CHAPTER 3 EXISTING COORDINATION INSTITUTION RELATED TO COMPREHENSIVE FLOOD MANAGEMENT

3.1 National Water Resources Council

The National Water Resources Council was established in March 2009 in accordance with Presidential Regulation No. 6/2009 on Establishment of National Water Resources Council which is in line with Law No. 7/2004 and Presidential Regulation No. 12/2008. The Council consists of forty-four (44) members (22 members from government and 22 members from non-government) as shown in Table 3.1-1, and has plenary meetings four (4) times a year.

Table 3.1-1 Membership of National Water Resources Council

Government Member Non-Government Member

1. Coordination Minister of Economic Affairs (Chairman) 2. Minister of Public Works (Executive Chairman) 3. Minister of National Development Planning/National

Development Planning Agency (BAPPENAS) 4. Minister of Home Affairs 5. State Minister of Environment 6. Minister of Agriculture 7. Minister of Health 8. Minister of Forestry 9. Minister of Transportation 10. Minister of Industry 11. Minister of Energy and Natural Resources 12. Minister of Marine and Fishery Affairs 13. State Minister of Research and Technology 14. Minister of National Education 15. Head of Agency for Meteorology, Climatology and

Geophysics (BMKG) 16. Head of Science Institute, Indonesia 17. Governor of South Sumatra Province (representative of

western Indonesia) 18. Governor of East Java Province (representative of

western Indonesia) 19. Governor of West Kalimantan Province (representative

of central Indonesia) 20. Governor of South Sulawesi Province (representative of

central Indonesia) 21. Governor of Maluku Province (representative of eastern

Indonesia) 22. Governor of East Nusa Tenggara Province

(representative of eastern Indonesia)

1. Kelompok Kontak Tani Nelayan Andalan Nasional (KTNA)

2. Rinjani Trek Managemen Board (RTMB) 3. Persatuan Perusahaan Air Minum Seluruh Indonesia

(Perpamsi) 4. Himpunan Kerukunan Tani Indonesia (HKTI) 5. Masyarakat Peduli Air (MPA) 6. Asosiasi Perusahaan Pengeboran Air Tanah Indonesia

(Apatindo) 7. Asosiasi Pengusaha Hutan Indonesia (APHI) 8. Jaringan Informasi Komunikasi Pengelolaan SDA

(JIK-PA) 9. Pengelolaan SDA Watch 10. Yayasan Air Adhi Eka 11. Indonesia Mining Association (IMA) 12. Yayasan Garuda Nusantara 13. Masyarakat Energi Terbarukan Indonesia (METI) 14. Komite Nasional Indonesia untuk Bendungan Besar 15. Gabungan Pengusaha Nasional Angkutan Sungai, Danau

dan Penyeberangan (GAPASDAP) 16. TELAPAK 17. Kemitraan Air Indonesia (KAI) 18. Asosiasi Perusahaan Air Minum Dalam Kemasan

Indonesia (ASPADIN) 19. Asosiasi Bunga Indonesia (ASBINDO) 20. Jaringan Kerjasama Pelestarian Hutan Indonesia

(SKEPHI) 21. Lembaga Penelitian Pendidikan dan Penerangan

Ekonomi dan Sosial (LP3ES) 22. Gabungan Perusahaan Karet Indonesia (GAPKINDO)

The Secretariat of the Council was also set up in the Directorate General of Water Resources, Ministry of Public Works based on the Minister of Public Works Regulation No. 11/PRT/M/2008 on Organization and Tasks of Secretariat of National Water Resources Council with the following tasks. To provide technical support for the preparation of council operational plan To provide administrative services as a Secretariat To arrange and invite the resource person(s), if required To conduct administration for the selection of the non-government members To arrange and operate the council meetings To analyze the water related issues and report the results of analysis


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To collect, manage and provide the information/data regarding the council operation To conduct the public relates activities To enhance the cooperation relations among related agencies To carry out the administrative works on human resources and financial management Figure 3.1-1 shows the structure of the Secretariat of the Council.


Panitia Kusus

Ad Hoc Committee

Public Relations Sub-Division

Subbagian Umum dan Keuangan Subbagian Kebijakan dan Evaluasi Subbagian Hubungan Masyarakat

Functional Group

Information Service Division

Bagian Pelayanan Informasi

Data and Information Sub-Division

Subbagian Data dan Informasi

Secretariat

Secretariat

General and Financial Affairs Sub-Divisoin Policy and Evaluation Sub-Division

Meeting Sub-Division Planning and Programming Sub-Division

Subbagian Persidangan Subbagian Perencanaan dan Program

Administrative Division Programming Division

Bagian Tata Usaha Bagian Penyusunan Program

Dewan SDA Nasional

National Water Resources Council

Figure 3.1-1 Structure of Secretariat of National Water Resources Council For the operation of the Council, the Special Committee (Ad Hoc Committee) will be established for the discussion and coordination related to the specific issues related to water resources, which is different from the sector-based Commissions of TKPSDA WS. 3.2 TKPSDA WS Bengawan Solo

The Minister of Public Works Regulation No. 247/KPTS/M/2009 on Establishment of Coordination Team of Water Resources and River Basin Management in Solo River Basin was issued on 9 February 2009, and TKPSDA WS Bengawan Solo was established based on the above regulation. The organization structure and membership of TKPSDA WS Bengawan Solo are shown in Figure 3.2-1 and Table 3.2-1 respectively.

Figure 3.2-1 Structure of TKPSDA WS Bengawan Solo


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Table 3.2-1 Membership of TKPSDA WS Bengawan Solo

Member No. of Member

Central Government BBWS Bengawan Solo 1

Provincial Government Central Java, East Java 11

Regency Government Boyolali, Sragen, Surakarta, Klaten, Sukoharjo, Wonogiri, Blora, Karanganyar,Rembang, Madiun, Ponorogo, Ngawi, Magetan, Pacitan, Bojonegoro, Tuban, Lamongan, Gresik

18

City Government Madiun, Surabaya 2

Non-Government 32

Total 64

According to the annual report in 2009, the agenda discussed on flood management in TKPSDA WS Bengawan Solo are as follows. Flood management guideline from 2009 to 2010 was discussed. Also, this guideline shall be

reviewed by the provincial government. The public awareness rising activities shall be conducted to disseminate the guideline. The coordination among the related organizations for the flood management shall be improved. Provision of information regarding flood to the public shall be effectively conducted. 3.3 TKPSDA WS Brantas

Same as TKPSDA WS Bengawan Solo, TKPSDA WS Brantas in Brantas river basin was established in accordance with the Minister of Public Works Regulation No. 247/KPTS/M/2009 on Establishment of Coordination Team of Water Resources and River Basin Management in Brantas River Basin. The membership of this TKPSDA WS is shown in Table 3.3-1.

Table 3.3-1 Membership of TKPSDA WS Brantas


Central Government BBWS Brantas 1

Provincial Government East Java 6

Regency Government Malang, Blitar, Trenggalek, Kediri, Nganjuk, Jombang, Mojokerto, Sidoarjo 9

City Government Batu, Malang, Blitar, Kediri, Mojokerto, Surabaya 6

Non-Government 22

Total 44

According to the annual report in 2009, the following regulations/decisions were prepared for the operation of TKPSDA WS Brantas. Regulation of TKPSDA WS Brantas No. 01/PRT/TKPSDA/2009 on Operation Procedure Regulation of TKPSDA WS Brantas No. 02/PRT/TKPSDA/2009 on Work Procedure Decision of TKPSDA WS Brantas No. 01/KPTS/TKPSDA/2009 on Meeting Schedule in 2009 Decision of TKPSDA WS Brantas No. 02/KPTS/TKPSDA/2009 on Structure and Administrative

Procedure 3.4 TKPSDA WS 6Ci

Regarding the six (6) river basins in JABODETABEK area, TKPSDA WS 6Ci was set up based on the Minister of Public Works Regulation No. 594/KPTS/M/2010 on Establishment of Coordination Team of Water Resources and River Basin Management in Cidanau-Ciujung-Cidurian-Cisadane- Ciliwung-Citarum River Basins dated 16 February 2010 for the coordination among the organizations related to river basin management in the basins. The membership of TKPSDA WS 6Ci is shown in Table 3.4-1.


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Table 3.4-1 Membership of TKPSDA WS 6Ci


Central Government

- BBWS Ciujung-Cidanau-Cidurian 1

- BBWS Ciliwung-Cisadane 1

- BBWS Citarum 1

Provincial Government

- DKI JKT: BAPPEDA, Public Works Agency, Maritime and Fishery Agency, Environmental Management Agency, Spatial Planning Agency

5

- West Java: BAPPEDA, Water Resources Management Agency, Water Resources Utilization Office in Ciliwung-Cisadane River Basin, Environmental Management Agency, Agriculture Agency, Forestry Agency, Jasa Tirta II (state-owned company)

7

- Banten 5

Regency Government

- Bogor: Regional Secretary 1

- Lebak, Tangerang, Serang, Pandeglang, Bandung, West Bandung, Indramayu, Subang, Purwakarta, Bekasi, Cianjur

12

City Government - North/South/Central/East/West Jakarta: Secretary 5

- Bogor: Human Settlement and Spatial Planning Agency 1

- Depok: Highway and Water Resources Agency 1

- Cilegon, Serang, Bekasi, Tangerang, South Tangerang, Bandung, Cimahi 7

Non-Government 49

Total 96

The Minister Regulation stipulates the followings. TKPSDA WS 6Ci is established under the responsibility and authority of the Minister The chairman and vice chairman shall be rotated annually among the following members:

year Chairman Vice Chairman

1st year Head of BAPPEDA DKI JKT Head of Public Works Agency DKI JKT

2nd year Head of BAPPEDA West Java Province Head of Water Resources Management Agency West Java province

3rd year Head of BAPPEDA Banten Province Head of Water Resources and Settlement Agency, Banten Province

The main secretariat is BBWS Ciliwung-Cisadane, and the supporting secretariats are BBWS Ciujung-Cidanau-Cidurian and BBWS Citarum.

The main objectives of TKPSDA WS 6Ci are as follows. To discuss on the formulation and implementation of water resources management plan and

project in 6 river basins To discuss on the water allocation in 6 river basins To discuss on the integrated management mechanism of hydrological data in 6 river basins To utilize the existing resources (human, finance, institution) in 6 river basins To recommend to the Minister on the water resources management in 6 river basins

The structure of the main secretariat is shown in Figure 3.4-1.

Kepala Secretariat

Head of Secretariat

Program Section Information System and Cooperation Section

Urusan Program Urusan Sistem Informasi dan Kerjasama

Administration and Meeting Section Experts/Resource Persons

Urusan Administrasi dan Persidangan Tenaga Ahli/Narasumber

Figure 3.4-1 Structure of Secretariat of TKPSDA WS 6Ci


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TKPSDA WS 6Ci has held meetings on 21 to 22 September 2011 for 2 days on the following agenda.

Table 3.4-2 Agenda of TKPSDA WS 6Ci Meeting

Agenda Presenter

Concept of Integrated Water Resources Management Director of BPSDA

National Policy for Coordination and Implementation of Water Resources Management Secretariat of NWRC

Implementation of Basic Tasks and Functions of TKPSDA Director of BPSDA

Discussion of Draft Rules and Procedures for TKPSDA WS 6Ci Secretariat of TKPSDA WS 6Ci

Establishment of Commissions of TKPSDA WS 6Ci Secretariat of TKPSDA WS 6Ci

Socialization of POLA of TKPSDA WS 6Ci Vice Chairman of TKPSDA WS 6Ci BPSDA: Water Resources Management (Bina Penatagunaan Sumber Daya Air), NWRC: National Water Resources Council As shown in Figure 3.4-2, the establishment of the Commissions was agreed among the members in the meeting.

Figure 3.4-2 Structure of TKPSDA WS 6Ci 3.5 Current Movement regarding Division of TKPSDA WS 6Ci

For the determination of river basin district1 as stipulated in Law No. 7/2004 on Water Resources, Presidential Regulation No. 12/2012 on Determination of River Basin District was issued. In accordance with this regulation, all the river basins in Indonesia are categorized into fiver (5) districts. Cross-country river basin district Cross-province river basin district National strategic river basin district Cross-regency/city river basin district In one regency/city river basin district In this regulation, Ciliwung-Cisadane river basin is categorized as a cross-province river basin district. According to the article 11 of Law No. 7/2004 and the article 17 of Government Regulation No. 42/2008, Water Resources Management Policy (POLA) shall be prepared in each river basin district by TKPSDA WS. Therefore, in accordance with this requirement, TKPSDA WS 6Ci was decided to be 1 River basin district (Wilayah Sungai: WS) consists of one or more river basin and/or small islands.


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divided into three (3) TKPSDA: TKPSDA WS 3Ci (Cidanau-Ciujung-Cidurian), 2Ci (Ciliwung-Cisadane) and 1Ci (Citarum). 3.6 Issues on the Existing Coordination Institution

In the meeting held on September 2011, the members agreed to establish the above commissions. However, due to the delay of division of TKPSDA, the further activities and approval of POLA were not proceeded. On the other hand, the following issues have been identified on the operation of TKPSDA WS 6Ci by the discussions among the related organizations and working group meetings in JCFM Project. According to the Minister of Public Works Regulation No. 594/KPTS/M/2010, each member

shall participate in one commission, but it can belong to only one commission. Thus, organizations such as spatial planning and water resources management organizations which are related to all the commissions cannot participate in the discussion of other commission.

TKPSDA WS 6Ci deals with 6 river basins. However, since the commission is composed based on the water related sector (water resources conservation, water resources utilization and water-related disaster control), it is difficult to discuss and coordinate the issues based on the river basin.

As shown in Figure 3.4-1, the secretariat of TKPSDA WS 6Ci does not have any structure for the technical aspects.

The water resources management policy (POLA) for TKPSDA WS 6Ci was formulated. However, POLA has not been approved by the Minister of Public Works since it is still under discussion on the division of TKPSDA WS 6Ci. Moreover, POLA shall be prepared for each TKPSDA WS after division of TKPSDA WS 6Ci. In addition, the water resources management plan (Rencana), program, and action plan have not been prepared. Since POLA is a policy for the water resources management, the coordination in the program and project levels has not been achieved.

Regarding the run-off control and spatial planning, the several issues are also pointed out. Law No. 26/2007 stipulates the incentive, disincentive and penalty mechanism for the

acceleration and dissemination of proper spatial use in line with spatial plans. However, since the detail spatial plan for the implementation of the zoning regulations to execute the incentive, disincentive and penalty mechanism has not been formulated in the local governments excluding DKI Jakarta, the spatial plan has not been effectively operarted.

The concept of “Zero Delta Q Policy” was introduced in the Government Regulation No. 20/2008 on National Spatial Planning. Thus, it is required to adopt this concept for ensuring the stormwater run-off control, accelerating the construction of rainwater storage and infiltration facility in the land development area and issuing the permission for the development activities. On the other hand, except for DKI Jakarta, most local governments do not have legal background to oblige the private sector to install the run-off control facilities to the land development legally.

3.7 Necessity of Comprehensive Flood Management Committee for Ciliwung River

Basin (CFMC)

The water resources management policy (POLA) in 6 river basins covered by TKPSDA WS 6Ci was formulated and disseminated to the stakeholders by the public consultation meetings. However, it has not been approved by the Minister of Public Works. Moreover, in accordance with the division of TKPSDA WS 6Ci, POLA for each TKPSDA will be formulated, and Rencan, program and action plan will be prepared. The POLA consists of the following five (5) pillars. Water Resources Conservation Water Resources Utilization Water-related Disaster Control


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Water Resources Information System Participation and Empowerment of Stakeholders Moreover, Law No. 7/2004 emphasizes the flood management, spatial planning and coordination among related organizations for the implementation of the above five pillars. However, the above mentioned issues are identified on the formulation of water resources management plan (Rencana), program and action plan, and concerns on the operation of TKPSDA WS 6Ci. The run-off control measures required in the related regulation are also not well progressed. Therefore, by establishing the Comprehensive Flood Management Committee for Ciliwung River Basin (CFMC), it can be expected to provide the opportunity to discuss on the comprehensive flood management (CFM) measures among the related organizations, to clarify the role allocation among the organizations for the implementation of CMF measures by approving and authorizing the Comprehensive Flood Management Plan (CFMP) and Action Plan (CFMAP) in the CFMC, and to promote the coordination of run-off control measures consistent with spatial plan. Furthermore, after the establishment of TKPSDA targeting Ciliwung river basin, the experiences and know-how on the planning and coordination conducted by the CFMC might be transferred to it.

Disaster Management- Pre Disaster- Emergency Responce- Post D isaster

- Badan Nasional Penanggulangan Bencana

- Badan PenanggulanganBencana Daerah

- PusatBBW S Ciliwung Cisadane

- Provinsi 1. D inas PU DKI, Jabar 2. D inas Sosial DKI, Jabar 3. D inas Kesehatan DKI , Jabar 4. etc- Kabupaten Kota /Kab

1. D inas PU Bogor, Depok 2. D inas Sosial Bogor , Depok 3. D inas Kesehatan Bogor , Depok 4. etc

Kementerian/Dinas yang terkait dengan SDA :- Pusat BBWS Ciliwung Cisadane- Provinsi 1 . Dinas PU DKI, Jabar 2 . Dinas Tata Kota DKI, Jabar 3 . Dinas Kehutanan Jabar

4. etcKabupaten Kota 1 . Dinas PU Kota/Kab. Bogor, Kota Depok 2 . Dinas Tata Kota/Kab. Bogor, Kota Depok 3 . etc

TKPSDA 6 Ci

TKPSDA 3 C i TKPSDA 1 Ci

TKPSDA 2 Ci(CILIWUNG CISADANE)

KEBIJAKAN PENGELOLAAN SDADI TINGKAT PROVINSI/KABUPATEN/KOTA

KONSERVASI

PENDAYAGUNAAN SDA

PENGENDALIAN DAYA RUSAK AIR

PEMBERDAYAAN & PENINGKATAN PERAN MASYARAKAT, SW ASTA DAN

PEMERINTAH

SISTEM INFORMASI DAN SUMBER DAYA AIR

FORUM KOORDINASI PSDA

PERNATAAN RUANG

PENCEGAHAN BENCANA BANJIR

Terdiri dari 5 Pilar :


SPATIAL PLANNING

RUN OFF CONTROL

COMPREHENSIVE FLOOD MANAGEMENT COMMITTEE

DSDA PROVINSI/KABUPATEN/KOTA

PENYUSUNAN POLA DAN RENCANA PENGELOLAAN SDA W S CILIW UNG CISADANE

(POLA and W ater Resources Management Plan in Ciliwung River Basun)

Construction Implementation

- Aspek Struktural - Konstruksi- Aspek Non – Struktural – Implementasi hasil

Operation & Maintenance

COMPREHENSIVE FLOOD MANAGEMENT ACTION PLAN

NORMAL CONDITION EMERGENCY CONDITION

Planing

Implementation

Figure 3.7-1 Relation of POLA and CFMC


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CHAPTER 4 EXAMINATION OF EXTABLISHMENT OF COMPREHENSIVE FLOOD MANAGEMENT COMMITTEE FOR CILIWUNG RIVER BASIN (CFMC)

4.1 Framework of CFMC

For the establishment of Comprehensive Flood Management Committee for Ciliwung River Basin (CFMC), the stipulation for the establishment of CFMC was formulated and approved by the first committee meeting held in November 2011. Based on the approved stipulation, the functions and framework of CFMC are described. 4.1.1 Functions of CFMC

The CFMC plays a role for coordinating the related central government and local government agencies for the implementation of the CFMP/CFMAP through: Coordination of relevant agencies for accelerating flood management measures in the Ciliwung

river and for integrating basin management measures including zoning rules, land use regulations, land development regulations, run-off control, and other necessary measures in the Ciliwung river basin,

Formulation, authorization and review of the CFMP/CFMAP and determination of the role allocation of each relevant institution for implementation of the CFMP/CFMAP,

Discussion on the formulation and enforcement of legal basis for the implementation of the CFMP/CFMAP,

Discussion and Establishment of monitoring and feedback mechanisms in the implementation of the CFMP/CFMAP, and,

Discussion for evaluation, implementation and realization of the CFMP/CFMAP. 4.1.2 Framework of CFMC

By referring to the related regulations regarding the establishment of water resources council and TKPSDA WS, the framework of CFMC was examined. As a result, its framework shown in Figure 4.1-1 was determined since it took the similar structure with TKPSDA WS for considering the future perspective to integrate CFMC as a sub-organizaiton of TKPSDA WS 6Ci.

Figure 4.1-1 Framework of CFMC The Working Units under the CFMC will function for providing the technical recommendations and supports on the formulation, implementation, monitoring and review of CFMP/CFMAP.


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4.1.3 Roles of Members of CFMC

(1) Chairperson

The Head of Regional Development Planning Agency of Jakarta Special Province was elected as a chairperson of the CFMC with the following roles. To lead the meetings of the CFMC and to coordinate the discussion on the CFMP/CFMAP, To formulate and approve the CFMP/CFMAP based on the discussion in the meetings of the

CFMC, and, To establish and accelerate monitoring and feedback mechanisms of implementation of the

CFMP/CFMAP. (2) Vice Chairperson

The Head of Public Works Agency of Jakarta Special Province was elected as a vice chairperson of the CFMC with the following roles. To carry out task of Chairperson of CFMC in case the Chairperson is absent, To coordinate the discussion on the CFMP/CFMAP in the CFMC, and, To supervise the performance of the Secretariat and Working Unit of the CFMC. (3) Secretariat

The Secretariat of the CFMC was set up in BBWS Ciliwung-Cisadane and the head of BBWS Ciliwung-Cisadane acts as a head of the Secretariat. The roles of the Secretariat are listed below. Supporting the performance of tasks and functions of the CFMC, Facilitating the arrangement of the CFMC meetings, Preparing the necessary materials for the discussion of CFMC meetings, Monitoring the achievement and progress of CFMP/CFMAP by the member of CFMC, and, Keeping the records of the discussion in CFMC meetings. (4) Member

By considering the integration of the CFMC as a sub-organization of TKPSDA WS 6Ci as a future perspective, the members of the CFMC were selected from the government members of TKPSDA WS 6Ci related to the flood management in Ciliwung river basin. In addition, since the CFMC is a coordination and discussion platform on the formulation and implementation of CFMP/CFMAP in the technical aspects, it consists of the government agencies so far, and the participation of the non-government members will be discussed during the course of JICA Project. (5) Working Unit

The Working Units consist of the counterpart members of JCFM Project. The each Working Unit has the following functions. 1) Working Unit on Comprehensive Flood Management Plan

The Working Unit on CFMP consists of members of the working group of CFMP established for the capacity development of the counterpart personnel. The functions of the Working Unit on CFMP are listed below. To conduct the required technical survey and analysis for the formulation, implementation, review,

evaluation, feedback and revision of the CFMP/CFMAP including survey on river system and inundation conditions, hydrological and hydraulic analysis, flood inundation analysis, design discharge analysis, layout planning of flood control facilities, and other necessary analysis, and,

To assist the Secretariat for the preparation of the necessary materials for the CFMC meetings


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regarding the CFMP/CFMAP. 2) Working Unit on Spatial Planning

The working group of Spatial Planning was established in JCFM Project for the transfer of technology to the counterparts. The Working Unit on Spatial Planning has the same composition with the working unit playing the following roles. To conduct the required technical survey and analysis on the land use and development

regulations in the spatial planning for the formulation, implementation, review, evaluation, feedback and revision of the CFMP/CFMAP including analysis on legal basis for land use regulation, land development regulation, land segmentation and spatial zoning in line with the CFMP/CFMAP, and,

To assist the Secretariat for the preparation of the necessary materials for the CFMC meetings regarding the spatial planning in the CFMP/CFMAP.

3) Working Unit on Run-off Control

The Working Unit on Run-off Control consists of the member of the working group of Run-off Control for the technical transfer in JICA Project. The roles of the Working Unit are shown as follows. To conduct the required technical survey and analysis on the planning and implementation of

run-off control for the formulation, implementation, review, evaluation, feedback and revision of the CFMP/CFMAP including analysis on survey on river system, inundation conditions and current land use conditions, run-off control facility planning, monitoring of the run-off control effects, and required legal basis for the run-off control in line with the CFMP/CFMAP, and,

To assist the Secretariat for the preparation of the necessary materials for the CFMC meetings regarding the run-off control in the CFMP/CFMAP.

4) Working Unit on Coordination and Monitoring

The Working Unit on Coordination and Monitoring is composed of the same organizations of the counterparts targeting the capacity development. The Unit has the following roles. To assist the Secretariat for facilitating the operation of the CFMC meetings, To assist the Secretariat for motivating the related agencies to carry out their own activities

stipulated in the CFMP/CFMAP, To assist the Secretariat for monitoring the progress and achievement of CFMP/CFMAP by the

member of CFMC, and, To assist the Secretariat for the preparation of the necessary materials for the CFMC meetings.


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CHAPTER 5 ESTABLISHMENT OF MECHANISM FOR MONITORING, EVALUATION AND FEEDBACK FOR CFMP/CFMAP

5.1 Outline of Legislatives related to Monitoring, Evaluation and Feedback

The current monitoring, evaluation and feedback of the project have been carried out in the frame of the legal system in Indonesia. This legal system is highly related to the formulation of development plan and budget allocation for the implementation of development plan. The current scheme for planning, budgeting and implementation is summarized in Figure 5.1-1.

Long-term Development PlanRPJPN/D(20 years)

Mid-term Development PlanRPJMN/D(5 years)

Annual Development PlanRKPN/D(1 year)

Mid-term Strategic PlanRenstra-KL/SKPD

(5 years)

Annual Strategic PlanRenja-KL/SKPD

(1 year)

Local GovernmentAPBD

Central GovernmentAPBN

Central Government BudgetDAK/TP

Local Government BudgetPAD

ImplementationMonitoring/Evaluation



Procedure on Monitoring and Evaluation of Local Development Plan

Law No.25/2004Government Regulation No.8/2008

Procedure on Monitoring and Evaluation of National Development Plan


Figure 5.1-1 Existing Scheme for Planning, Budgeting, Implementation and Monitoring Minister of National Development Planning/National Development Planning Agency (BAPPENAS) and Regional Development Planning Agency (BAPPEDA) of provincial/regent/city governments shall formulate the long-term (Rencana Pembangunan Jangka Panjang Nasional/Daerah or RPJPN/D), mid-term (Rencana Pembangunan Jangka Menengah Nasional/Daerah or PRJMN/D) and annual (Rencana Kerja Pemerintah Nasional/Daerah or RKPN/D) development plans. Based on those plans, ministries of central government and implementation agencies of local governments shall prepare mid-term (Rencana Strategis or Renstra) and annual (Rencana Kerja or Renja) strategic plans. Through the coordination meetings (Musrenbang), ministries and implementation agencies request the budget allocation in accordance with their annual strategic plans every year. Moreover, as subsidy from the central government to the local government, a certain budget can be allocated especially for the project implementation.


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In accordance with the related legislatives as below, both central and local governments have obligation to monitor the progress of project implementation and report the monitoring results to the defined agencies in the law. Moreover, after the completion of the project, the evaluation report shall be submitted to the Minister, Governor, Regent or Mayor. 5.1.1 Law No. 25/2004 on National Development Planning

Law No. 25/2004 on National Development Planning System is a legal guidance for the formulation, implementation, monitoring and evaluation of development plans in both national and local levels. This law consists of the rule for preparation of RPJP, RPJM and RKP, and responsible organizations, schedule and work procedure for monitoring and evaluation of those plans. The detail stipulations for those activities are defined in the following government regulations. 5.1.2 Government Regulation No. 39/2006 on Monitoring and Evaluation Procedure for

Implementation of Development Plan

Government Regulation No. 39/2006 on Formulation, Monitoring and Evaluation Procedure of Development Plan is applied for the monitoring and evaluation of national budget project conducted by both central and local government agencies, which means the project funded by National Revenues and Expenditures Budget (APBN) and Allocation for Specific Program/Co-Administrative Budget (DAK/TP). According to the regulation, implementation agencies of central and local governments have to prepare quarterly report in order to monitor the financial and physical progresses of the project. The reporting flow of quarterly report is shown in Figure 5.1-2.

5 w

orki

ng d

ays

5 w

orki

ng d

ays

Figure 5.1-2 Reporting of Monitoring Result

Article 4 Minister/Governor/Regent/Mayor shall be responsible for monitoring of the implementation

of Annual Strategic Plan (Renja). Head of implementation agency of provincial/district/city governments shall assist

Minister/Governor/Regent/Mayor for the monitoring of Renja. The monitoring results shall be reported quarterly.


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Article 5 Head of implementation agency of district/city governments shall prepare quarterly report

and submit it to Regent/Mayor through the head of BAPPEDA of district/city governments.

Article 6 Head of BAPPEDA of district/city governments shall prepare quarterly report by compiling

with the quarterly report submitted by the head of implementation agency of district/city governments.

This quarterly report shall be submitted to the Governor through the head of BAPPEDA of provincial government.

Article 7 Head of implementation agency of provincial government shall prepare quarterly report and

submit it to Governor through the head of BAPPEDA of provincial governments and to the Ministers as required.

Article 8 Head of BAPPEDA of provincial government shall prepare the quarterly report by

compiling with the quarterly report submitted by the head of implementation agency of provincial/district/city governments.

This quarterly report shall be submitted to the Minister of BAPPENAS, Minister of Finance and Minister of Domestic Affairs.

Article 9 Head of implementation agency of central government shall prepare quarterly report and

submit it to the Minister and head of institution. Minister and head of institution shall prepare the quarterly report by compiling with the

quarterly report submitted by the head of implementation agency of central/provincial/district/city governments and submit it to Minister, Minister of Finance and Minister of Administrative Reform.

Within at least two (2) months after the completion of the project, Accountability Report on Performance of Government Agencies (Laporan Akuntabilitas Kinerja Instansi Pemerintah or LAKIP) shall be prepared for the evaluation of the project achievement. The evaluation criteria are as follows. a. Project input (financial input) b. Project progress (project schedule, progress and issues) c. Project output (physical output) d. Project outcome (project objectives) e. Benefit by the project (benefit for the society) f. Impact by the project (impact to the society) After the project finishes, the evaluation will be conducted on the above criteria a. to d. immediately, and benefit and impact by the project (e. and f.) will be evaluated four (4) to five (5) years later. LAKIP includes the evaluation results of all the project done by the implementation agency and shall be submitted in the same flow with the monitoring as shown in Figure 5.1-2. Moreover, it is stipulated in the article 15 of the regulation that Minister has responsibility for monitoring and evaluating the mid-term plans in national level (RPJMN and Renstra-KL) and report the evaluation results four (4) months before the expire of RPJMN and Rentra-KL. 5.1.3 Government Regulation No. 8/2008 on Formulation, Monitoring and Evaluation of

Regional Development Plan

Government Regulation No. 8/2008 stipulates the rule and responsibility for the monitoring and evaluation of the project implementation funded by local budget (PAD). In this case also, BAPPEDA


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of provincial/district/city governments plays a key role for the monitoring and evaluation by supporting Governor, Regent and Mayor.

Article 43 Governor/Regent/Mayor shall execute the management of provincial/district/city

development plans respectively.

Article 45 Management by Governor/Regent/Mayor shall be carried out by the head of BAPPEDA

supported by the head of implementation agencies which conduct the programs and activities of regional development plans.

Tasks of BAPPEDA regarding the management of regional development plans include monitoring, supervision, and follow-up of the achievement of objectives for the programs and activities conducted by the implementation agencies.

Monitoring above includes the financial input, physical output and issues of programs and activities by the implementation agencies.

Article 46 Governor/Regent/Mayor shall execute the evaluation of provincial/district/city development

plans respectively.

Article 48 Evaluation by Governor/Regent/Mayor shall be carried out by the head of BAPPEDA

supported by the head of implementation agencies which conduct the programs and activities of regional development plans.

The evaluation results shall be utilized for the formulation of regional development plans in the next periods.

The evaluation results of the programs and activities funded by PAD are also mentioned in LAKIP. 5.2 Current Monitoring Activity

In accordance with the above legislatives, the monitoring and evaluation activities have been executed. District and city governments have prepared the monitoring and evaluation reports in the required formats by manual. On the other hand, Ministry of Public Works and BAPPED DKI Jakarta established the website system to manage the monitoring and evaluation data and to accelerate the data sharing among the officials. 5.2.1 Ministry of Public Works

For the effective implementation of the monitoring and evaluation, the Ministry of Public Works established the website system called “e-Monitoring”. The project manager in the implementation agency is required to input the necessary data and to update them regularly (at least twice a month). Those data automatically calculated in the system and the financial and physical progress can be shown. The views of monitoring system are shown in Figure 5.2-1 and Figure 5.2-2 as sample. Moreover, LAKIP is uploaded in this system, so all the officials can access it.


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Figure 5.2-1 e-Monitoring System (Ministry of Public Works)

Figure 5.2-2 e-Monitoring System (BBWS Ciliwung-Cisadane) 5.2.2 Government of DKI Jakarta

Similar with the central government, the government of DKI Jakarta constructed the website system called “e-MONEV: Monitoring and Evaluation System” for the effective monitoring and evaluation of the government activities.


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Figure 5.2-3 e-MONEV System (Public Works Office in DKI Jakarta) 5.3 Identified Issues for the Monitoring and Evaluation for CFMP/CFMAP

For the establishment of monitoring, evaluation and feedback mechanism for the CFMP/CFMAP, it was recommended by the related organizations and FTCP to utilize the existing monitoring and evaluation framework in the following reasons: The current monitoring and evaluation mechanism is legally required for the central and local

governments and well known by the government officials. It is expected that the monitoring and evaluation activities in the CFMC can be conducted

smoothly and sustainably if the existing mechanism is applied. Since the legal framework from the planning to the evaluation is unified and continuous

requirement, the monitoring and evaluation of the CFMP/CFMAP will be legally required if the CFMP/CFMAP will be legalized in line with the existing legal framework.

5.4 Establishment of the Monitoring, Evaluation and Feedback Mechanism in CFMC

Therefore, the implications for the establishment of monitoring, evaluation and feedback mechanism of the CFMP/CFMAP are as follows. The monitoring and evaluation of the CFMP/CFMAP will become the legal requirement if the

CFMP/CFMAP makes input into the required plans. Since it is difficult to revise the national/local development plans in terms of time limitation and

complicated administration procedures, it is better to input the CFMP/CFMAP into POLA and/or Rencana for Ciliwung river basin since the related plans including POLA and Rencana shall be referred for the formulation of RPJP, RPJM and RKP.

Minister of Public Works Regulation as a guidance for the preparation of Rencana has been prepared as a draft. Thus, the concept of the CFM will be reflected in Rencana of each TKPSDA if this regulation requires Rencana in line with the CFM.

The current activities for the monitoring and evaluation of the project will be continued and the results of monitoring and evaluation will be reported in the CFMC meeting.


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Long-term Development PlanRPJPN/D(20 years)

Mid-term Development PlanRPJMN/D(5 years)

Annual Development PlanRKPN/D(1 year)

Mid-term Strategic PlanRenstra-KL/SKPD

(5 years)

Annual Strategic PlanRenja-KL/SKPD

(1 year)

Local GovernmentAPBD

Central GovernmentAPBN

Central Government BudgetDAK/TP

Local Government BudgetPAD




POLARencana(20 years)

CFMPCFMAP

Ministry of Public Works Regulation No. 22/PRT/M/2009 on Preparation of POLAMinistry of Public Works Regulation on Preparation of Rencana (Draft)

Input

CFM Concept

Input

Procedure on Monitoring and Evaluation of Local Development Plan


Procedure on Monitoring and Evaluation of National Development Plan


other related plans

Figure 5.4-1 Correlation with Legalization of CFMP/CFMAP and Monitoring/Evaluation If Rencana contains the CFM concept, other development plans will include CFM plans since those plans shall refer to Rencana. Budget will be allocated to the implementation agencies in national/provincial/district and city levels based on their annual strategic plans and those agencies will implement their projects and the monitoring and evaluation activities. Therefore, in accordance with the existing legal requirements, activities for the CFM will be monitored and evaluated. Moreover, the results of the monitoring and evaluation can be reported in the CFM meeting annually by using the information on the monitoring and evaluation results as required above.


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Feedback

Figure 5.4-2 Draft Monitoring and Evaluation Mechanism in CFMC 5.5 Minister of Public Works Regulation on Preparation of Water Resources

Management Plan (Rencana)

The Minister of Public Works Regulation No. 02/PRT/M/2013 on Guidelines for Preparation of Water Resources Manangement Plan (Rencana) was issued and became effective. The preparation and establishment process is shown in Figure 5.5-1.


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Figure 5.5-1 Flow Chart for Preparation of Rencana For the preparation of Rencana, TKPSDA will set up the strategy and prepare it through the consultation with the stakeholders and in cooperation with the related implementation agencies and technical unit. Since Ciliwung river basin is categorized as the cross-province river basin district with Cisadane river basin, Directorate General of Water Resources in the Ministry of Public Works including BBWS Ciliwung-Cisadane is in charge as the technical unit.


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Rencana shall be prepared as 20 years plan. It is stipulated that Rencana shall be a basis for the programs and activities in every sector related to the water resources. Moreover, Rencana shall play a role as an input for the improvement of spatial planning in consideration of the water resources management. Rencana, same as POLA, contains the following three aspects: water resources conservation, water resources utilization and control of destructive force of water including the flood. For the conservation of the water resources, it is required to temporarily store the excess water by constructing the artificial rainwater catchment facility (such as reservoir, pond, etc.) and conserving the natural facility such as Situ. Moreover, as physical efforts against the flood, the activities for the reduction of flood risks are required including the construction of flood control facility (river improvement, dyke, flood spillway) and the management of floodplain by regulating the land use. The appropriate balance between the upstream and downstream is emphasized. The establishment and approval process of Rencana for cross-province river basin district is shown in Figure 5.5-2.

Figure 5.5-2 Establishment Process of Rencana for Cross-Province River Basin District In order to adjust Rencana with the current conditions in the river basin, Rencana shall be reviewed and revised every five (5) years through the public consultation with the concerned stakeholders in the basin. The flow for the revision of Rencana is shown in Figure 5.5-3.


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Document ofWater Resources Management Plan

(Rencana)

Implementation Document ofWater Resources Management Plan

(Rencana) (Physical Effort &Nonphysical Effort)

by Related Sectors to Water Resources(for 1-5 years)

Authorized Agency inProvincial / District / Municipality in charge

of Water Resources

Monitoring & Evaluation:Implementation Document of Water

Resources Management Plan (Rencana)for 1-5 year

Change ofData & Environment

Judicial Review and Evaluation:Document of Water Resources Management Plan (Rencana)

Public Consultation

Completion of Water Resources Management Plan (Rencana)

Determination

Revision and Evaluation Results onDocument of Water Resources Management Plan (Rencana)

Fixed Document for Water Resources Management Plan (Rencana)

No

Yes

Figure 5.5-3 Flow Chart for Monitoring, Evaluation and Revision of Rencana (Draft) The main points related to the CFM in Ciliwung river basin are outlined as follows. TKPSDA has the responsibility to formulate the draft Rencana and the Minister of Public Works

has authority to approve it. Directorate General of Water Resources and BBWS Ciliwung-Cisadane have the responsibility to

give technical advice to TKPSDA WS 2Ci for the preparation of the draft Rencana. Rencana will be the fundamental reference to the sector plans related to the water resources. Spatial planning shall refer to Rencana in terms of the water resources management. Rencana shall contain the strategy for the flood management consisting of the river management

and basin management in physical and non-physical efforts. TKPSDA shall monitor and supervise the implementation of Rencana, and Rencana shall be

reviewed and revised every five (5) years through the public consultation. As stipulated above, the concept of CFM has been already included in the said regulation.


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CHAPTER 6 TKPSDA WS CILIWUNG-CISADANE

6.1 Establishment of TKPSDA WS Ciliwung-Cisadane

In accordance with the issuance of Presidential Regulation No. 12/2012, TKPSDA WS 6Ci has been divided into three (3) TKPSDAs. During the course of the discussion for the division of TKPSDA WS 6Ci, Directorate of Water Resources Management, Directorate General of Water Resources played a role as a facilitator. In the original schedule, it was planned that the basic policy on the division would be determined by December, 2012, and the member of a new TKPSDA would be fixed by January, 2013. Even though it required long time to determine the above policy and members, in accordance with the issuance of Minister of Public Works Regulation No. 242/KPTS/M/2013 on Establishment of Coordination Team of Water Resources and River Basin Management in Ciliwung-Cisadane River Basin, TKPSDA WS Ciliwung-Cisadane was established in June, 2013. 6.2 Outline of Minister of Public Works Regulation No. 242/KPTS/M/2013

The outline of Minister of Public Works Regulation No. 242/KPTS/M/2013 is summarized as follows.

Chairperson: Head of BAPPEDA in DKI Jakarta, West Java and Banten provinces will be appointed annually.

Vice Chairperson: Head of Public Works Agency of DKI Jakarta, Head of Water Resources Management Agency of West Java province and Head of Water Resources and Settlement Agency of Banten province will be appointed annually.

TKPSDA WS Ciliwung-Cisadane is set under the Minister of Public Works. TKPSDA WS Ciliwung-Cisadane has the following tasks:

To discuss for the formulation of POLA and Rencana To discuss for the formulation of Water Resources Management Program and Action Plan To discuss on the water conveyance plan from other basin to Ciliwung-Cisadane river

basin To discuss on the management of water information system regarding hydrology,

meteorology and hydraulic To discuss on the utilization of human resources, finance, equipment and institution for the

effective water resources management in Ciliwung-Cisadane river basin To provide advice to the Minister of Public Works regarding the implementation of water

resources management in Ciliwung-Cisadaen river basin TKPSDA WS Ciliwung-Cisadane will conduct the necessary inter-institutional and

inter-regional coordination for the implementation of comprehensive water resources management in Ciliwung-Cisadane river basin.

TKPSDA WS Ciliwung-Cisadane will conduct monitoring and evaluation on the implementation of Water Resources Management Program and Action Plan for the water resources management in Ciiwung-Cisadane river basin.

TKPSDA WS Ciliwung-Cisadane shall submit the activity reports at least twice a year to fulfill the above tasks.

TKPSDA WS Ciliwung-Cisadane shall establish the secretariat to support the activities conducted by TKPSDA WS Ciliwung-Cisadane. The secretariat is set in BBWS Ciliwung-Cisadane, and the head of BBWS Ciliwung-Cisadane is appointed as the head of the secretariat.

The required budget for TKPSDA WS Ciliwung-Cisadane is allocated from APBN.

According to the said regulation, the member of TKPSDA WS Ciliwung-Cisadane is as follows.


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Table 6.2-1 Member of TKPSDA WS Ciliwung-Cisadane


Central Government

- BBWS Ciliwung-Cisadane 1

Provincial Government

- DKI JKT: BAPPEDA, Public Works Agency, Maritime and Agriculture Agency, Environmental Management Agency, Spatial Planning Agency

5

- West Java: BAPPEDA, Water Resources Management Agency, Forestry Agency, Jasa Tirta II (state-owned company)

4

- Banten 2

Regency Government

- Bogor: BAPPEDA, Highway and Water Resources Agency 2

- Bekasi, Tanggerang 4

City Government - North/South/Central/East/West Jakarta: Secretariat 5

- Bogor: BAPPEDA, Highway and Water Resources Agency 2

- Depok: Highway and Water Resources Agency 1

- Bekasi, Tangerang, South Tangerang 3

Non-Government 29

Total 58

6.3 Draft of Commission Structure and Internal Regulation of TKPSDA WS

Ciliwung-Cisadane

BBWS Ciliwung-Cisadane as the secretariat of TKPSDA WS Ciliwung-Cisadane prepared the draft of commission structure and internal regulation of TKPSDA WS Ciliwung-Cisadane. Since the first meeting of TKPSDA WS Ciliwung-Cisadane is planned to be held in September, 2013, those drafts will be finalized based on the agreement among the member. 6.3.1 Draft of Commission Structure of TKPSDA WS Ciliwung-Cisadane

According to the draft of commission structure prepared by the secretariat, TKPSDA WS Ciliwung-Cisadane will be operated with the following commissions. The chairperson, vice chairperson and secretariat of each commission will be determined in the meeting. Moreover, non-government members in each commission will also be elected.

Figure 6.3-1 Draft Commission Structure of TKPSDA WS Ciliwung-Cisadane


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6.3.2 Draft of Internal Regulation of TKPSDA WS Ciliwung-Cisadane

The internal regulation on the operation and meeting procedures has been drafted by the secretariat of TKPSDA WS Ciliwung-Cisadane. The main subjects of this internal regulation are mentioned as follows.

Chapter 1: General Provisions (Article 1) Chapter 2: Commission of TKPSDA WS Ciliwung-Cisadane (Article 2 to 3)

All members of TKPSDA WS Ciliwung-Cisadane shall belong to any commission excluding chairperson and vice chairperson of TKPSDA WS Ciliwung-Cisadane.

TKPSDA WS Ciliwung-Cisadane consists of 58 members and the following commissions are established.

- Commission for Water Resources Conservation - Commission for Water Resources Utilization - Commission for Water-related Disaster Control - Commission for Community Empowerment

Commission for Water-related Disaster Control has the following tasks. - To coordinate with POLA and Rencana of Ciliwung-Cisadane river basin and to

provide recommendation for the mitigation of flood disaster through the formulation of comprehensive flood control plan

- To finalize the recommendation report by the commission based on the acceptance of assembly meeting of TKPSDA WS Ciliwung-Cisadane

- To promote the flood control measures with community participation - To accelerate the implementation of flood control measures by utilizing the water

resources information system Chapter 3: Meeting Schedule (Article 4 to 7)

Meeting shall be held at least four (4) times a year. Based on necessity, resource person can be invited. The chairperson of TKPSDA WS Ciliwung-Cisadane is rotated by Head of BAPPEDA in

DKI Jakarta, West Java and Banten provinces annually. The vice chairperson of TKPSDA WS Ciliwung-Cisadane is rotated by Head of Public

Works Agency of DKI Jakarta, Head of Water Resources Management Agency of West Java province and Head of Water Resources and Settlement Agency of Banten province annually.

The meeting materials shall be prepared by the secretariat of TKPSDA WS Ciliwung-Cisadane.

Chapter 4: Type of Meeting (Article 8 to 13) The following types of meeting can be held.

- Assembly meeting - Ad hoc meeting - Leader meeting - Commission leader meeting - Joint commission meeting - Working committee meeting - Others

Chapter 5: Meeting Procedure (Article 14 to 17) In case of the absence of member, the representative can be appointed with power of

attorney. In case of the absence of chairperson, vice chairperson will be representative of

chairperson. The secretariat shall assist the chairperson for the smooth process of the meeting.

Chapter 6: Discussion Procedure (Article 18 to 26) With speaking up the name and institution, the participant is allowed to mention his/her

opinion.


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If the chairperson judges the inappropriateness of the participants’ speaking, he/she can terminate it and request to leave from the meeting.

Chapter 7: Meeting Records (Article 27 to 30) In the assembly meeting and ad hoc meeting, the secretariat is required to prepare the

minutes of meeting and it shall be signed by chairperson or head of secretariat. The minutes of meeting shall be distributed to all the members.

Chapter 8: Invitation of Resource Person (Article 31 to 32) Resource person can participate in the meeting with the invitation from the chairperson,

but does not have voting right. Observer can participate in the meeting without the invitation, but does not have voting

right. Chapter 9: Consensus Building (Article 33 to 43)

The decision making shall be based on the consensus among the members in principle. In case consensus cannot be achieved, the decision will be made by voting.

Chapter 10: Final Provision (Article 44)

6.4 Recommendation on the Operation of TKPSDA WS Ciliwung-Cisadane

In JCFM Project, CFMC was established as a discussion platform on the CFMP/CFMAP, role allocation and monitoring mechanism of CFMP/CFMAP in Ciliwung river basin under the Directorate General of Water Resources, Ministry of Public Works. On the other hand, TKPSDA WS Ciliwung-Cisadane was established in June, 2013 as a legal body for the coordination among related institutions. Therefore, by sharing the planning process and monitoring mechanism examined in JCFM Project with TKPSDA WS Ciliwung-Cisadane, it is expected to contribute to the improvement and enhancement of operation and function of TKPSDA WS Ciliwung-Cisadane. In JCFM Project, the following issues were recognized through the discussion in Coordination and Monitoring Working Group and implementation agency.

Budget allocation for the operation of CFMC Decision making process (voting system, etc.) Subsidy system between the local governments Selection of member (director class, working level, etc.) Legalization and its necessary process of operation manual of CFMC Role allocation and methodology of monitoring on CFMP/CFMAP

In addition, based on the discussions before the establishment of TKPSDA WS Ciliwung-Cisadane, several issues on the operation of TKPSDA WS 6Ci were identified as follows.

The comprehensive flood management measures consist of flood control measures as well as runoff control measures and land use regulation. However, since one member institution can belong to only one commission in TKPSDA, it cannot join in the discussion in other commissions.

TKPSDA is mandated to conduct the monitoring and evaluation of POLA, Rencana, program, and action plan for water resources management. However, the detail methodology of those activities has not been formulated yet.

Since the structure of the secretariat of TKPSDA is oriented for administrative procedures, the technical analysis seems difficult to be implemented by the secretariat only.

According to the establishment of TKPSDA WS Ciliwung-Cisadane, the following issues are solved since those are already stipulated in the minister regulation.


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Budget allocation for operation of TKPSDA: the required budget for the operation of TKPSDA WS Ciliwung-Cisadane is allocated from national budget.

Decision making process: consensus among all members or voting system Subsidy system: dissemination and utilization of subsidy system operated by Development

Cooperation Agency of JABODETABEKJUR Selection of member: members are head of agency, but can be represented with power of attorney Legalization of operation procedure: issuance of minister regulation for the establishment of

TKPSDA WS Ciliwung-Cisadane Involvement to commission: according to internal regulation of TKPSDA WS Ciliwung-Cisadane,

the joint commission meeting can be held. Therefore, discussion and decision making on the comprehensive flood management can be conducted inter-commission discussion.

Therefore, the recommendations on the other issues are mentioned below. 6.4.1 Monitoring Mechanism of CFMP/CFMAP

For the implementation of the comprehensive flood management in Ciliwung river basin, the flood control measures in the river course as well as the runoff control measures, land use regulation and disaster mitigation measures are required to be planned and executed in an integrated manner in the unit of the river basin. Moreover, since various agencies in the central and local governments are related, it is necessary to establish the mechanism with coordination and collaboration among them. During the process to implement the comprehensive project plans in coordination with several government agencies, it is assumed those agencies would face issues on the implementation and coordination. Moreover, the monitoring and evaluation efforts of the achievement and effects of those projects will be required. Through the identification of critical issues and evaluation of the project achievement, the plans for comprehensive flood management can be reviewed and revised, and more effective flood control efforts can be expected. On the other hand, considering the aspects of integrated measures in the wide river basin area, it might be effective and practical to implement the inter-institutional and inter-sectoral monitoring, and the secretariat of TKPSDA WS Ciliwung-Cisadane will collect and analyze the monitoring results as a coordination body. Therefore, it is recommended that the secretariat of TKPSDA WS Ciliwung-Cisadane will play a role to organize the monitoring results from BAPPEDA of each local government in the basin. The advantages of the above mechanism are as follows.

In accordance with the Government Regulation No. 39/2006 and Government Regulation No. 8/2008, BAPPEDA is responsible for the monitoring activities. Thus, this legal framework can be utilized for the monitoring of CFMP/CFMAP.

BAPPEDA is also an agency for coordination of budgeting planning and regional development planning, so that it can be expected to promote the monitoring implementation.

Both head of BAPPEDA in DKI Jakarta and West Java will be appointed as chairperson of TKPSDA WS Ciliwung-Cisadane. Therefore, the implementation of monitoring will be ensured.

On the other hand, the following issues are currently identified on the members of TKPSDA WS Ciliwung-Cisadane.


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BAPPEDA in each local government in Ciliwung river basin is nominated as member of TKPSDA WS Ciliwung-Cisadane excluding BAPPEDA of Depok city.

As shown in Figure 6.4-1, various organizations are related to comprehensive flood management, but all of those agencies are not nominated as the members of TKPSDA WS Ciliwung-Cisadane.

Figure 6.4-1 Member of TKPSDA WS Ciliwung-Cisadane and Organization related to CFM

For the involvement of those agencies related to the comprehensive flood management in Ciliwung river basin, while the operation of TKPSDA WS Ciliwung-Cisadane has been carried out, it is expected that the members might be reviewed by the revision of minister regulation, and smooth project implementation and coordination can be achieved. On the other hand, for the revision of the members, the consensus among all the members of TKPSDA WS Ciliwung-Cisadane will be required. Therefore, as for the short-term measure, it might be effective to take an effort to gradually involve those organizations through the utilization of resource person and organization of ad hoc committee. Besides, the monitoring items and methods can be referred to “Monitoring Manual for the CFM (Draft)”. 6.4.2 Enhancement of Secretariat Function

According to the internal regulation of TKPSDA WS Ciliwung-Cisadane, the secretariat is in charge of preparation of meeting materials. Moreover, it is recommended that the secretariat will be responsible for organizing the monitoring results submitted by the local governments. Therefore, it might be required to enhance the functions of the secretariat to meet those tasks by providing the technical supports. For the enhancement, the following supporting structures can be considered. Technical support by Commission for Water-related Disaster Control Technical support by Ad Hoc Committee In the commission for water-related disaster control, BBWS Ciliwung-Cisadane and Public Works Agency of DKI Jakarta are supposed to be involved, which are the agencies to deal with flood control measures, runoff control measures and disaster mitigation measures. On the other hand, BAPPEDA of


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Bogor regency is included as a member of the commission, but the implementation agencies of comprehensive flood management in the other local governments are nominated in other commissions. Therefore, the establishment of Ad Hoc Committee can be considered consisting of local government agencies responsible for flood control measures, runoff control measures, land use regulation, and disaster mitigation measures, and this committee can provide the technical supports to the secretariat systematically. 6.4.3 Monitoring Mechanism of CFMP/CFMAP

Based on the above mentioned, the following monitoring mechanism is proposed to be established.

Chairperson

Vice Chairperson

Commission for Water Resources

Conservation

Commission for Water Resources

Utilization

Commission for Water-related

Disaster Control

Secretariat

BBWS Ciliwung-Cisadane

Commission for Community Empowerment for Water Resources Management

DG of Water Resources, PU

BBWS Cil.Cis

Bappeda

Dinas PU, DKI JKT Dinas BM & SDA (Pengairan)

Dinas Tata Ruang & Permukiman

DG of Cipta Karya, PU

Dinas Perindustrian & Energi, DKI JKT

DG of Spatial Planning, PU

Dinas PSDA,Jawa Barat

BPLHD,DKI JKT

Implementation Agency

Monitoring Agency

TKPSDA WS Ciliwung-Cisdane

Flood Control MeasureLand Use Regulation

Run-Off Control Measure Recommendation

& Guidance

Report of Monitoring Results

Cooperation for

Monitoring Analysis

Monitoring Reporting

Report ofMonitoring Results

in Assembly Meeting

Supporting Agency

Recommendation & Guidance

Working Team

Assistance

Figure 6.4-2 Monitoring Mechanism in TKPSDA WS Ciliwung-Cisadane The task and function of the related government organizations for the monitoring are as follows.

<Implementation Agency> To implement the comprehensive flood control measures in accordance with project plans

including the CFM To implement the monitoring of required items by referring to “Monitoring Guidelines for the

CFM” and to report the monitoring results to BAPPEDA

<Monitoring Agency> To collect and organize the monitoring results from the implementation agencies and report to

the secretariat of TKPSDA WS Ciliwung-Cisadane (BBWS Ciliwung-Cisadane)

<TKPSDA WS Ciliwung-Cisadane> In cooperation with the Commission for Water-related Disaster Control, to analyze the

monitoring results submitted by BAPPEDA and to compiling it into the river basin unit. To report the compiled monitoring results to the members in the assembly meeting of TKPSDA

WS Ciliwung-Cisadane, and to collect comments from them To utilize those comments from the members for the review/revision of CFMP/CFMAP, POLA

and Rencana


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<Supporting Agency> To provide the technical supports to implementation agencies to conduct the comprehensive

flood management measures Based on the necessity, as resource person or member of ad hoc committee, to participate in the

discussion of TKPSDA WS Ciliwung-Cisadane, and to support the analysis of monitoring results and review of the above plans for the secretariat.


THE PROJECT FOR



IN INDONESIA



ANNEX-5 LAND SUBSIDENCE ANALYSIS

OCTOBER, 2013


GEJR

13-198


THE PROJECT FOR



IN INDONESIA



ANNEX-5 LAND SUBSIDENCE ANALYSIS

OCTOBER, 2013


Exchange Rate applied in this Report As of September, 2013

USD 1.00 = IDR 10,929.766

USD 1.00 = JPY 98.04

The Project for Capacity Development of Jakarta Comprehensive Flood Management in Indonesia Annex-5 Land Subsidence Analysis

i

The Project for Capacity Development of Jakarta Comprehensive Flood Management

in Indonesia

Technical Cooperation Report Comprehensive Flood Management Plan

Annex-5 Land Subsidence Analysis

Table of Contents CHAPTER 1 The Course of Work and Implemented Items of this Project ..................................... 1-1

1.1 The Course of Work .............................................................................................................. 1-1 1.1.1 Purpose of This Study.................................................................................................... 1-1

1.2 Implemented Items ................................................................................................................ 1-1 1.2.1 First Year ....................................................................................................................... 1-1 1.2.2 Second Year ................................................................................................................... 1-3 1.2.3 Third Year ...................................................................................................................... 1-5

CHAPTER 2 Result of Study .......................................................................................................... 2-1 2.1 First Year ............................................................................................................................... 2-1

2.1.1 Ground Survey ............................................................................................................... 2-1 2.1.2 Land Subsidence Analysis Result based on Satellite Imagery Analysis ........................ 2-2

2.2 Second Year ........................................................................................................................... 2-6 2.2.1 Land Subsidence Analysis Result by Ground Survey ................................................... 2-6

2.3 Third Year .............................................................................................................................. 2-8 2.3.1 Ground Survey ............................................................................................................... 2-8 2.3.2 Land Subsidence Analysis Result Based on the Ground Survey Result...................... 2-10

CHAPTER 3 Situation of Land Subsidence around Study Area ..................................................... 3-1 3.1 In the Project Period .............................................................................................................. 3-1

3.1.1 Condition of Land Subsidence ...................................................................................... 3-1 3.1.2 Future Forecast of Land Subsidence ............................................................................. 3-1

3.2 Suggestion to the Estimation of Land Subsidence in the Future ........................................... 3-1


ii


Figure 1.2-1 Leveling Network and GPS Network (1st year) ................................................... 1-3 Figure 1.2-2 Leveling Survey Network and GPS Survey Network (2nd Year) ......................... 1-5 Figure 1.2-3 Survey Network of Leveling Survey and GPS Survey (3rd Year) ........................ 1-6 Figure 2.1-1 Area of Leveling Survey ..................................................................................... 2-1 Figure 2.1-2 Location of GPS Survey Point (GCP) ................................................................. 2-2 Figure 2.1-3 Description of areas that mentioned Table 2.1.3 ................................................. 2-5 Figure 2.2-1 Result of Leveling Survey and Comparison with DInSAR Analysis .................. 2-7 Figure 2.2-2 Result of GPS Survey .......................................................................................... 2-8 Figure 2.3-1 Situation of Land Subsidence between 2nd year (2012) and 3rd year (2013) ..... 2-12

List of Tables

Table 1.2-1 Implementation Items and Description (1st Year) .................................................. 1-1 Table 1.2-2 Outline of Ground Survey ..................................................................................... 1-2 Table 1.2-3 Implementation Items and Description (2nd Year) ................................................. 1-4 Table 1.2-4 Implementation Items and Description (3rd Year) .................................................. 1-5 Table 2.1-1 Result of Leveling Survey (1st Year) ...................................................................... 2-3 Table 2.1-2 Result of GPS Survey (1st Year) ............................................................................ 2-4 Table 2.1-3 Change of the Land Subsidence Rate over the Years ............................................ 2-5 Table 2.1-4 Estimate Land Subsidence Amount by 2050 ......................................................... 2-5 Table 2.3-1 Result of Leveling Survey (2007-2013) ................................................................ 2-9 Table 2.3-2 Result of Leveling Survey (Additional 16 Survey Point

established in the 2nd year) ...................................................................................... 2-9 Table 2.3-3 Result of GPS Survey (2007-2013) ..................................................................... 2-10 Table 2.3-4 Leveling Survey Result (After correction) .......................................................... 2-11 Table 3.1-1 Outline of the Land Subsidence Rate over the Years ............................................. 3-1 Table 3.1-2 Estimate Land Subsidence Amount by 2050 ......................................................... 3-1


1-1

CHAPTER 1 THE COURSE OF WORK AND IMPLEMENTED ITEMS OF THIS PROJECT

1.1 The Course of Work

1.1.1 Purpose of This Study

A grasp the situation of land subsidence in Jakarta area has been carried out by leveling survey with survey network, GPS survey and satellite image interpretation so far. Land subsidence analysis of this project has been implemented for the purpose of grasping the following items based on the satellite imagery analysis result of an Advanced Land Observing Satellite (ALOS) “DAICHI”, and development of a manual for satellite imagery analysis method. To grasp the comprehensive and spatial condition of the land subsidence in Jakarta area To grasp the tendency of progress of land subsidence based on the result of analysis over the

years To develop a Manual for Satellite Image Analysis Method Land subsidence analysis in Jakarta area has been carried out by the study of the JCDS (Jakarta Costal Development Strategy: Holland) and Institute Technology of Bandung. Those studies have been carried out by leveling survey with survey network, GPS survey and satellite image analysis so far. In this project, a Space-borne synthetic aperture radar differential interferometric analysis (hereinafter referred to DInSAR) is used for satellite imagery analysis. Satellite image is/was obtained by the Daichi (Advanced Land Observing Satellite (ALOS)) that is launched by JAXA (Japan Aerospace Exploration Agency) in January 2006. Then the DInSAR result is corrected using information of displacement of ground control point by leveling survey and result of ground measurement by GPS survey in order to measure the land subsidence with high accuracy. An attempt of this correction the satellite imagery analysis result by the information of displacement that is measured by leveling survey and GPS survey is thought to be a first attempt. In this project, a tentative method of satellite imagery analysis was be developed and also a manual for Satellite Imagery Analysis Method was developed. 1.2 Implemented Items

1.2.1 First Year

(1) Outline

Implementation items of this project related to the land subsidence analysis are shown in Table 1.2-1.

Table 1.2-1 Implementation Items and Description (1st Year)

Item Description Note Ground Survey Leveling Survey

GPS Survey Total km length of the Survey: Total 28Points of GPS

Satellite Image Interpretation Analysis of Land Subsidence Data source: DAIGHI Preparation for Manual etc. Implementation Items of Satellite

Image Interpretation and its Procedure, etc.

As results of the previous analysis of land subsidence subject to Jakarta area, results of leveling survey, GPS survey and satellite image interpretation were examined respectively. However, it is thought that there is no existing examination result that the satellite image interpretation result was corrected by the result of leveling and GPS survey.


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In this project, spatial distribution of displacement of ground surface observed by satellite images (PALSAR data set), which are taken by the ALOS “DAICHI” and the DInSAR processing is carried out, will be corrected by the results of a leveling survey and GPS survey. In the period of this project total 4 times of data acquisition and analysis for land subsidence were supposed to be being implemented. However, in May 2011 (1st year of this project), ALOS “DAICHI” was terminated its operation due to the life span. Therefore for the 2nd year and 3rd Year of this project, Land subsidence analysis by the satellite imagery analysis could not carried out. Details of result of the land subsidence analysis by satellite imagery analysis and manuals which was implemented and prepared is described in the “Progress Report Phase-1” and “ Annual Report Phase-1” of this project. On the other hand, a technical transfer to C/P, preparation and revision of manuals and establishment of framework of C/P for the satellite image interpretation are carried out. JICA Expert is supporting C/P on the activities for these items. (2) Ground Survey

Ground survey was carried out for the following purpose. To grasp the displacement of ground surface by a leveling survey and GPS survey result To correct the DInSAR result by above mentioned GPS/Leveling result, in order to obtain high

accurate DInSAR result. In this study, ground surveys which are shown in Table 1.2-2 were carried out. Figure 1.2-1 shows the survey network of Leveling survey and GPS survey.

Table 1.2-2 Outline of Ground Survey

Item Description Note Leveling Survey Leveling survey by using existing BM

Total Length: 130 km Existing BM/ Temporary BM which were installed in 2007 was used.

GPS Survey Total 28Points of GPS GPS survey were carried out by using existing GCP points and near the point


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a) Leveling Network b) GPS Network

Figure 1.2-1 Leveling Network and GPS Network (1st year) (3) Satellite Imagery Analysis

Space-borne synthetic aperture radar differential interferometric analysis (DInSAR) is well known that the technology for the detection of surface displacement as line of site displacement between satellite and the earth surface. It mainly use for monitoring of crustal/land deformation due to the earthquake and volcanic activity. And, in recent years, it have been applying to the analysis of detection of local space surface deformation like landslide, subsidence, and so on. GPS measurement and leveling measurement have been conventionally used for the land subsidence monitoring, however, it is difficult to understood spatial distribution of subsidence displacement because it measures displacement as point information. DInSAR has an advantage that it can be measured spatial distribution of land subsidence. And it can be understanding not only amount of displacement but also trend of land subsidence displacement using time series of DInSAR result. From this, DInSAR analysis is utilized for land subsidence analysis of Jakarta area. On the other hand, normally, DInSAR result include bias or inclined error. To measure the land subsidence with high accuracy, correction of DInSAR result using information of displacement of ground control point (bench mark) and result of ground measurement is expected. Therefore, in this project, correction of DInSAR result using GPS and leveling result is introduced to measure the land subsidence with high accuacy. 1.2.2 Second Year

(1) Outline

Based on the result of first year of this project, following studies were carried out. a) Ground Survey b) Land Subsidence Analysis by the result of ground survey Land subsidence analysis by satellite imagery analysis was carried out in the 1st year of this project. However, since an advanced land observation satellite ALOS “Daichi” stopped its operation in May of


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2011 and it is impossible to obtain SAR image from “Daichi”, land subsidence analysis by satellite imagery analysis (DInSAR analysis) was not carried out on and after the 2nd year of this project. Implementation items of 2nd year related to the land subsidence analysis are shown in Table 1.2-3.

Table 1.2-3 Implementation Items and Description (2nd Year)

Item Description Note Survey 1) Leveling Survey

Survey of existing leveling network and additional survey points. Installation of additional survey points (16points) Total km length of the Survey: 2) GPS Survey 28 points

Leveling network which was established in 2011. GCP point which was established in 2011.

Land Subsidence Analysis Analysis based on the Survey

(2) Ground Survey

In the 2nd year of this project, ground survey was carried out for the following purpose; To grasp land subsidence rate between 1st year (2011) and 2nd year(3012) To check the tendency of land subsidence that was grasped in the 1st year Ground survey was carried out based on the survey network that was established in the 1st year. However, there are many survey points that have different condition compared with 1st year due to human alteration. Since it was thought that there are areas which have remarkable land subsidence but no existing bench mark based on the result of land subsidence analysis in the 1st year, total 16 survey points were set up in those areas in the 2nd year of this project. Figure 1.2-2 shows leveling survey network and GPS survey network in the 2nd year. After completion of leveling survey in accordance with the leveling network that was set up in the 1st year, additional 16 survey points were installed. Therefore basically leveling survey network of 2nd year has no differ to the network of 1st year. Furthermore, visual check of each survey point was carried out in order to select adequate survey points for calculate a displacement between 1st year and 2nd year.


1-5

(a) Leveling Survey Network (b) GPS Survey Network

Figure 1.2-2 Leveling Survey Network and GPS Survey Network (2nd Year) (3) Land Subsidence Analysis based on the Ground Survey Result

Based on the result of ground survey land subsidence analysis was carried out. 1.2.3 Third Year

(1) Outline

Based on the result of first year and second year of this project, following studies were carried out. a) Ground Survey b) Land Subsidence Analysis by the result of ground survey Implementation items of the 3rd year are shown in Table 1.2-4.

Table 1.2-4 Implementation Items and Description (3rd Year)

Items Content Note Survey Ground Survey

a) Leveling survey Modified Leveling Network

Distance：210km b) GPS survey（24 hours）

GCP Point: 28

Based on the leveling survey network which was established in 2007, 16 newly installed point were combined into modified survey network Same GCP point as 1st year and 2nd year

Land Subsidence Analysis

Analysis based on the result of ground survey Examination of Land subsidence survey result in the project period

(2) Ground Survey

Leveling survey and GPS survey were conducted.


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Leveling survey in the 3rd year was carried out on newly established survey network. Because 16 survey points were established in the 2nd year. Leveling survey network included those additional survey points. There was variation in the data between leveling survey result and GPS survey result in the 2nd year. Therefore, GPS survey in the 3rd year was carried out as 24 hours survey for each GCP point. Survey Network of the leveling survey and GPS survey are shown in Figure-1.2.3. For this survey, confirmation of survey point was carried out in order to avoid inappropriate data of displacement as same as 1st year and 2nd year.

(a) Leveling Survey Network (b) GPS Survey Network (GCP point)

Figure 1.2-3 Survey Network of Leveling Survey and GPS Survey (3rd Year) (3) Land subsidence analysis based on the ground survey result

Land subsidence analysis was carried out based on the result of ground survey for the following purpose. To examine land subsidence rate between 2nd year and 3rd year of this project To compare above result with the land subsidence analysis of the 1st year To grasp the tendency of displacement due to land subsidence which was grasped the 1st year of

this project (4) Description of the result of land subsidence analysis during this project period

Based on the land subsidence analysis result which obtained 1st year, 2nd year and 3rd year of this project, tendency of land subsidence in the study area was examined. And estimate land subsidence amount by 2050 that was estimated in the 1st year of this project was examined based on the result of 3rd year, then suggestion of land subsidence analysis in the future is also described.


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CHAPTER 2 RESULT OF STUDY

2.1 First Year

2.1.1 Ground Survey

(1) Leveling Survey

Survey area/ Leveling network of this study are shown in Figure 2.1-1. Total length of leveling survey of this study is 130 km. Existing benchmark (BM) NWP-60 was used as reference of height. This BM was use as reference point of height in the previous project in 2007. This BM was used as referent point of height through 1st year to 3rd year of this project. It was planned that for this study existing BMs/Temporary BMs which was installed in 2007 was used for this survey, however, many of those existing BM, especially temporary BMs, were cannot be used for this survey due to artificial ground condition change. Therefore, in this study, some of BM were set up and leveling network was set up newly for this study.

Figure 2.1-1 Area of Leveling Survey (2) GPS Survey

Figure 2.1-2 shows the location of GPS survey points (GCP) of this project. Total 28point of GCP is installed. As same as leveling survey, it was planned that exiting GCP that was installed in 2008 was used for this GPS survey too. However, many of those GCP were not available to use because of artificial change of ground condition. Therefore newly GCP was installed partly based on the previous GCP. Location of GCP was selected at the space that is thought to be no artificial change during this project period.


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Source: JICA Project team

Figure 2.1-2 Location of GPS Survey Point (GCP) 2.1.2 Land Subsidence Analysis Result based on Satellite Imagery Analysis

(1) Extraction of Precise Displacement of Ground Surface by Leveling Survey for the correction of DInSAR Analysis Result

1) Outline

It is important to extract precise data of displacement of ground surface in particular period which is measured and calculated by leveling survey to correct result of DInSAR. For that purpose, in this study, extraction reliable leveling survey result and location of BM/ temporary BM was done. For this work, following items were carried out.

Checking of coordinates of each BM/temporary BM which were surveyed in 2007 and 2001 Comparison of BM/temporary BM condition by photograph that was taken in 2007 and 2011 Checking of BM/temporary BM condition by a field survey

Detail of DInSAR analysis and correction by survey result is referred to “Progress Report Phose-1” and “Manual of DInSAR correction based on GPS/Leveling measurement result (Draft)” prepared in 1st year of this project. 2) Leveling Survey

The terms of precise data is thought to be as follows. Survey point (BM/temporary BM) is same location in 2007 and 2011, and same point in BM


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is surveyed. Abnormal difference of the survey result between 2007 and 2011 cannot be identified.

As a result of this work, total 39 BM/temporary BM is evaluated to adequate, and data of those leveling survey were extracted as precise data. Table 2.1-1 shows the result of leveling survey in 2007 and 2011.

Table 2.1-1 Result of Leveling Survey (1st Year)

(Source: JICA Expert Team) Note: Green colored BMs are used

3) GPS Survey

As same purpose of extraction of precise displacement of ground surface, extraction reliable GPS survey result and location of GCP was done. For this work, following items were carried out.

Checking of coordinates of each GCP which was surveyed in 2008 and 2001 Comparison of GCP condition by photograph that was taken in 2008 and 2011 Checking of GCP condition by a field survey

Latitude Longitude 2007 2011 Displacement

1 PB363 B 06 09 10.4 106 47 41.9 4.895 4.761 -0.134 PB363

2 PB64 Ｂ 06 11 57.7 106 50 42.8 8.566 8.953 0.387 PB64

3 PB55 Ｂ 06 11 54.4 106 48 35.9 7.468 7.399 -0.069 PB554 NWP487 Ｂ 06 12 28.3 106 50 54.6 8.917 8.789 -0.128 NWP4875 WBCW31 ＴＢ 06 06 56.8 106 46 28.3 0.666 0.533 -0.133 WBCW316 PBM30 Ｂ 06 12 56.2 106 49 00 7.861 7.729 -0.132 PBM307 WBCK7R ＴＢ 06 12 12.5 106 49 38.3 7.853 7.931 0.078 WBCK7R8 PBM34 Ｂ 06 14 26.4 106 49 16.1 13.345 13.387 0.042 PBM349 PP553 （ＴＢ） 06 16 50.2 106 49 11.3 34.795 35.013 0.218 PP553

10 PP920 Ｂ 06 10 15.3 106 48 39.5 3.252 3.017 -0.235 PP92011 TA23N ＴＢ 06 16 06.2 106 48 40.9 28.269 28.187 -0.082 TA23N12 WBCK4 ＴＢ 06 12 03.2 106 48 03.2 7.862 7.976 0.114 WBCK413 WBCK6 ＴＢ 06 12 10.6 106 49 27.4 7.667 7.683 0.016 WBCK6

14 WBCK10 ＴＢ 06 12 15.7 106 49 51.5 7.921 7.897 -0.024 WBCK1015 WL01 Ｂ 06 10 26.9 106 48 22.7 6.13 6.053 -0.077 WL0116 CDK9 ＴＢ 06 11 12.9 106 49 21.4 3.261 3.471 0.21 CDK917 MPW02N ＴＢ 06 16 56.2 106 50 02.0 24.892 24.652 -0.24 MPW02N18 KRT24N ＴＢ 06 14 19.9 106 49 03.8 13.082 13.099 0.017 KRT24N19 KRT7N ＴＢ 06 12 34.7 106 48 45.5 7.012 6.661 -0.351 KRT7N20 CLK8 ＴＢ 06 12 58.5 106 51 19.4 10.195 13.558 3.363 CLK8

21 CLK16 ＴＢ 06 13 04.98 106 51 42.5 16.743 11.537 -5.206 CLK16

22 CL32N ＴＢ 06 13 31.0 106 51 47.9 15.069 14.968 -0.101 CL32N23 CL01 ＴＢ 06 18 09.1 106 51 17.6 30.774 30.779 0.005 CL01

24 CL0 ＴＢ 06 18 18.8 106 51 32.8 40.501 40.516 0.015 CL025 CDK4 ＴＢ 06 11 38.46 106 49 14.45 4.004 3.921 -0.083 CDK426 C4N ＴＢ 06 11 27.5 106 50 36.0 8.218 7.677 -0.541 C4N27 AKW09R Ｂ 06 09 06.3 106 46 18.1 1.964 3.332 1.368 AKW09R

28 AKW18 ＴＢ 06 09 28.5 106 46 04.5 4.995 4.198 -0.797 AKW18N

29 C10N Ｂ 06 10 19.2 106 49 54.8 5.143 5.064 -0.079 C10N30 CID024N ＴＢ 06 08 20.5 106 48 42.3 1.659 1.321 -0.338 CID024N31 CLDT20 ＴＢ 06 08 59.8 106 50 05.8 2.226 2.226 0 CLDT2032 PB166 Ｂ 06 07 48.6 106 48 53.4 0.924 0.817 -0.107 PB16633 PP782 Ｂ 06 08 38.7 106 46 40.7 2.596 2.561 -0.035 PP78234 CDM08 ＴＢ 06 48 17.0 106 07 41.8 1.007 0.936 -0.071 CDM08

35 GRL9 Ｂ 06 15 40.6 106 47 07.1 21.716 21.654 -0.062 GRL936 PB384 Ｂ 06 06 33.9 106 47 50.5 0.361 -0.067 -0.428 PB38437 PP119 Ｂ 06 06 43.9 106 47 06.8 1.986 1.852 -0.134 PP11938 PP775 Ｂ 06 09 43.5 106 45 59.5 4.055 4.043 -0.012 PP77539 PP878 Ｂ 06 13 04.2 106 45 52.0 10.931 10.934 0.003 PP87840 PP825A Ｂ 06 10 57.8 106 45 27.1 6.523 6.433 -0.09 PP825A41 MPW17N ＴＢ 06 15 17.8 106 49 32.1 18.329 18.138 -0.191 MPW17N

42 S1N ＴＢ 06 09 53.3 106 46 21.3 3.527 3.508 -0.019 S1N43 PP1145B Ｂ 06 08 44.4 106 50 03.0 2.502 2.36 -0.142 PP1145B44 PP930 Ｂ 06 10 54.1 106 50 11.2 6.362 6.277 -0.085 PP93045 PP917 Ｂ 06 10 04.6 106 49 52.8 4.895 4.5 -0.395 PP91746 PB37 Ｂ 06 10 02.9 106 46 47.6 2.002 1.875 -0.127 PB3747 KB19N ＴＢ 06 10 57.2 106 46 06.3 4.896 4.752 -0.144 KB19N48 GT1 ＴＢ 06 11 39.6 106 47 32.3 6.564 6.513 -0.051 GT149 GRW29N ＴＢ 06 15 01.0 106 47 20.7 16.923 16.927 0.004 GRW29N50 GRW22 ＴＢ 06 14 21.6 106 47 06.3 17.515 17.396 -0.119 GRW2251 GRW18 ＴＢ 06 14 09.1 106 47 09.66 17.152 16.203 -0.949 GRW1852 GRW16 ＴＢ 06 14 01.1 106 47 36.6 13.888 13.696 -0.192 GRW1653 GRW15N ＴＢ 06 13 45.2 106 47 44.9 12.545 12.56 0.015 GRW15N54 GRW10 ＴＢ 06 12 42.8 106 47 40.8 9.169 9.158 -0.011 GRW1055 GRL099 ＴＢ 06 14 21.6 106 47 06.3 18.12 20.236 2.116 GRL09956 CLDT27 ＴＢ 06 08 17.3 106 49 01.8 1.183 1.036 -0.147 CLDT2757 PSA1 ＴＢ 06 13 01.6 106 45 50.8 11.85 11.84 -0.01 PSA158 PSA5N ＴＢ 06 11 25.5 106 45 54.4 7.146 7.108 -0.038 PSA5N59 PSA14N ＴＢ 06 13 38.1 106 45 50.9 14.402 14.546 0.144 PSA14N60 PSAPBCC40 Ｂ 06 09 13.3 106 44 52.6 3.496 3.503 0.007 PSAPBCC4061 PST0N ＴＢ 06 14 15.6 106 45 52.5 16.635 16.367 -0.268 PST0N

62 PST87 ＴＢ 06 15 10.73 106 46 12.38 16.213 21.648 5.435 PST8763 WBCW29 ＴＢ 06 07 23.5 106 46 26.8 5.257 5.119 -0.138 WBCW2964 TP38 ＴＢ 06 15 43.4 106 46 57.2 24.532 24.847 0.315 TP38

65 BM97N B 06 13 35.1 106 49 02.5 10.538 10.04 -0.498 BM97N66 TPN B 06 06 24.4 106 53 27.1 2.144 TPN

BM No.Ｎｏ． BM No.Coordinates ElevaitonType of

BM


2-4

As a result of this work, total 15 GCP is evaluated to adequate, and data of those GPS survey were extracted as precise data. Table 2.1-2 shows the result of GPS survey in 2008 and 2011.

Table 2.1-2 Result of GPS Survey (1st Year)

(Source: JICA Expert Team) Note: Green colored BMs are used

(2) Condition of Land Subsidence of the Study Area

Condition of land subsidence by the result of DInSAR analysis is described in the Section 2.2.3. Here, summary of analysis is described and relation among topographical condition, geological condition, land use and condition of land subsidence is described briefly. From 2007 to 2008, localized land subsidence of approximately 6~24cm was detected in

Penharingan, Glodok, and Ancol. From 2008 to 2009, continuous localized land subsidence was confirmed in Penharingan, Glodok,

and Ancol. However, amount of displacement was decreased to approximately 6~12cm. From this result, decrease trend of the land subsidence was estimated.

From 2009 to 2010, continuous localized land subsidence was confirmed but the land subsidence in the Glodok is hard to see. And amount of displacement was decreased to approximately 4~6cm. Decrease trend of the land subsidence was confirmed.

From 2010 to 2011, amount of displacement was more decreased and it was up to 6cm. Generally, the land subsidence area/points and its displacement shows decrease trend from 2007

to 2011, and tendency to be stabilized of the land subsidence was confirmed. In the central area of Jakarta, land subsidence of very limited area can be identified along the

rivers and roads. Land subsidence rate of these areas are inferred from 2 to 3 cm per year. Analysis result of 2007 and 2011, localized land subsidence around Jakarta can be seen clearly.

Especially, the land subsidence in the southern part of Jakarta can be seen clearly. Land subsidence rate in the southern part of Jakarta might be 12cm per 4 years. However, almost of this

GCP01 -0.010 0.165 -0.175GCP02 0.267 0.293 -0.026GCP03 -0.832 -0.539 -0.293GCP04 1.299 1.460 -0.161GCP05 3.998 3.886 0.112GCP06 1.256 1.112 0.144GCP07 2.294 1.449 0.845GCP08 1.556 1.632 -0.076GCP09 2.168 2.189 -0.021GCP10 1.120 1.337 -0.217GCP11 1.964 2.061 -0.097GCP12 3.842 3.776 0.066GCP13 1.975 2.169 -0.194GCP14 3.368 3.616 -0.248GCP15 4.562 4.581 -0.019GCP16 6.265 6.514 -0.249GCP17N 5.929 6.065 -0.136GCP18 13.709 13.870 -0.161GCP19 6.125 6.253 -0.128GCP20 7.292 7.312 -0.020GCP21 7.697 8.014 -0.317GCP22 13.846 14.003 -0.157GCP23 14.998 14.978 0.020GCP24 12.911 13.167 -0.256GCP25 11.085 11.213 -0.128GCP26 19.096 19.257 -0.161GCP27N 30.005 30.005GCP27 29.998 29.949 0.049GCP28 30.652 30.598 0.054

Elevat ionby GPSSurvey

No. ofGCP

Locat ionEvaluat ion

Elevationby GPSSurvey

2008 2011 Amount ofsubsidence

between 2008and 2011


2-5

subsidence was thought to be occurred from 2008 to 2009. Land subsidence rate in the western part of Jakarta is thought be around 4cm per year. The change of the land subsidence rate over the years is shown in Table 2.1-3. And Figure 2.1-3 indicates the areas “north”, “west”, “south” and “central” mentioned in the Table 2.1-3.

Table 2.1-3 Change of the Land Subsidence Rate over the Years

Area 2007～2008 2008～2009 2009～2010 2010～2011 2007～2011 2008～2011 North 6～24 6～12 4～6 ～6 ～36 ～24 West ～8 4～6 ～4 ～4 ～9 ～9 South ～6 ～8 ～4 ～4 ～12 ～12 Central Very limited

area Very little Very little Very little 2 to 3cm in the

very limited area ←

Figure 2.1-3 Description of areas that mentioned Table 2.1.3 (3) Future Forecast of Land Subsidence

Based on the result of land subsidence analysis by DInSAR analysis, average land subsidence rate in the future is estimated. Then, total amount of land subsidence by 2050 is estimated. Table 2.1-4 shows the estimated total amount of land subsidence by 2050.

Table 2.1-4 Estimate Land Subsidence Amount by 2050

Area Estimated Average Land Subsidence

Rate per Year (cm) Estimated Total Amount of Land

Subsidence by 2050 North 6 228cm (around 2.5m) West 4 152cm (around 1.5m) South 4 152cm (around 1.5m) Central Less than 3cm Less than 1m

Note: This estimation is based on the result of DInSAR analysis of this study.

North

West

South

Central


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2.2 Second Year

2.2.1 Land Subsidence Analysis Result by Ground Survey

(1) Result of Leveling Survey

Table 2.3-1 (next section) shows the result of leveling survey in the 2nd year with survey result of 3rd year. Generally, ground elevation in the east portion of study area shows higher elevation than the ground elevation of 2011 at the survey point. On the other hand, ground elevation in the west portion of study area shows lower elevation than the ground elevation of 2011 at the survey point. Since it is thought to be impossible to shift to an upward trend of a ground which sank, resurvey for main BMs was conducted. However, cause of this result could not be clarified. Therefore, it was judged that detailed examination on rate of land subsidence based on this survey result is thought to be meaningless in the 2nd year. Figure 2.2-1 shows the result of leveling survey. Red colored dot is a point that ground elevation 2012 is lower than 2011 and green colored dot is a point that ground elevation 2012 is higher than 2011. Figure 2.2-2shows the result of land subsidence in the 1st year. Land subsidence rate in the west and south portion of study area has a tendency to increase from 2008 based on the result of land subsidence analysis in the 1st year. At least it is thought that survey result of the 2nd year could grasp this tendency. In addition, it was judged that displacement due to land subsidence extend to reference height point NWP-60 in the 3rd year.


2-7

Result of Leveling Survey Comparison with DInSAR Analysis

Figure 2.2-1 Result of Leveling Survey and Comparison with DInSAR Analysis (2) Result of GPS Survey

Result of GPS survey which was conducted in the first year showed a similar result of leveling survey which was conducted same time. And there was a correlation between GPS survey result of first year and result of DInSAR analysis in the first year. Therefore, GPS survey of second year was conducted by the same measurement method of the first year (observation time). However, there is bad correlation between GPS survey and leveling survey of the second year. Furthermore, there are some points that show higher elevation compared to result of 2011 GPS survey result. The cause of higher elevation and bad correlation between GPS survey and leveling survey of the second year is thought to be an effect of observation time and weather condition at the time of GPS survey. Figure 2.3-1 shows the condition of displacement at each GCP point. 4 points among 28 point are measured that ground elevation 2nd year was lower than (this means that subsidence) ground elevation of 1st year.

Legend Land subsidence point

compared to 2011 Upward point compared

to 2011


2-8

Figure 2.2-2 Result of GPS Survey (3) Problem on the Result of Land Subsidence Analysis in the 2nd year

Problems mentioned below were thought to be as follows. As a survey result there are many survey points which ground elevation 2nd year is higher than one

of 2nd year. However it is thought to be impossible to shift an upward trend of ground from sank. A Resurvey for main BMs was conducted. However, cause of this result could not be clarified.

Therefore it is recommendable to confirm the land subsidence rate in Jakarta area between 2012 and 2013 by a leveling survey in order to confirm the tendency of land subsidence that was checked by the result of land subsidence analysis (DInSAR analysis) in the 1st year.

In case GPS survey will be implemented in the 3rd year, it is recommendable that observation time of GPS survey should be 24 hours.

Total 16 leveling survey points (BM) were newly set up in the second year in order to check the tendency of land subsidence for the areas, where no BM but has relatively high land subsidence rate, based on the result of land subsidence analysis in the first year. It is recommendable to confirm the land subsidence rate between 2012 and 2013 by a leveling survey.

2.3 Third Year

2.3.1 Ground Survey

(1) Leveling Survey

Table 2.3-1 shows the leveling survey result. This table includes result of 1st year and 2nd year. Table 2.3-2 shows the leveling survey result of additional survey point which established 2nd year of this project. Many of survey points which were judged that survey point had same condition 2nd year and 3rd year, indicate that displacement between 2nd year and 3rd year is + (rise). On the other hand, among those survey points, which were established in the 2nd year of his project and judged that survey point had same condition 2nd year and 3rd year, 10 is -(subsidence) and 4 is + (rise).

Point of GPS Survey

Point which has subsidence

<Legend>


2-9

An interpretation of those survey results is described in the paragraph (2) of this section.

Table 2.3-1 Result of Leveling Survey (2007-2013)

Note; red color is survey point which is judged that survey point does not have same condition. On the other hand, there are some survey points that can judge survey point has same condition between 2nd year and 3rd year, even though it does not have same condition between 1st year and 2nd year.

Table 2.3-2 Result of Leveling Survey (Additional 16 Survey Point established in the 2nd year)

Latitude Longitude 2007 2011 2012 2013 2007-2011 2007-2011/Year 2011-2012 2012-2013 2007-2013

PB363 B 06 09 10.4 106 47 41.9 4.895 4.761 4.907 4.909 -0.134 -0.033 0.146 0.002 0.014PB64 Ｂ 06 11 57.7 106 50 42.8 8.566 8.953 9.073 9.083 0.387 0.097 0.12 0.01 0.517PB55 Ｂ 06 11 54.4 106 48 35.9 7.468 7.399 7.606 7.605 -0.069 -0.017 0.207 -0.001 0.137NWP487 Ｂ 06 12 28.3 106 50 54.6 8.917 8.789 8.907 8.923 -0.128 -0.032 0.118 0.016 0.006WBCW31 ＴＢ 06 06 56.8 106 46 28.3 0.666 0.533 0.603 0.564 -0.133 -0.033 0.07 -0.039 -0.102PBM30 Ｂ 06 12 56.2 106 49 00 7.861 7.729 7.842 7.825 -0.132 -0.033 0.113 -0.017 -0.036WBCK7R ＴＢ 06 12 12.5 106 49 38.3 7.853 7.931 0.078 0.020PBM34 Ｂ 06 14 26.4 106 49 16.1 13.345 13.387 13.313 13.305 0.042 0.011 -0.074 -0.008 -0.04PP553 （ＴＢ） 06 16 50.2 106 49 11.3 34.795 35.013 34.95 35.056 0.218 0.054 -0.063 0.106 0.261PP920 Ｂ 06 10 15.3 106 48 39.5 3.252 3.017 3.255 3.195 -0.235 -0.059 0.238 -0.06 -0.057TA23N ＴＢ 06 16 06.2 106 48 40.9 28.269 28.187 28.089 28.203 -0.082 -0.020 -0.098 0.114 -0.066WBCK4 ＴＢ 06 12 03.2 106 48 03.2 7.862 7.976 8.161 8.166 0.114 0.029 0.185 0.005 0.304WBCK6 ＴＢ 06 12 10.6 106 49 27.4 7.667 7.683 7.811 7.856 0.016 0.004 0.128 0.045 0.189WBCK10 ＴＢ 06 12 15.7 106 49 51.5 7.921 7.897 8.013 8.057 -0.024 -0.006 0.116 0.044 0.136WL01 Ｂ 06 10 26.9 106 48 22.7 6.13 6.053 6.234 6.233 -0.077 -0.019 0.181 -0.001 0.103CDK9 ＴＢ 06 11 12.9 106 49 21.4 3.261 3.471 3.584 3.647 0.21 0.053 0.113 0.063 0.386MPW02N ＴＢ 06 16 56.2 106 50 02.0 24.892 24.652 -0.24 -0.060KRT24N ＴＢ 06 14 19.9 106 49 03.8 13.082 13.099 13.219 13.22 0.017 0.004 0.12 0.001 0.138KRT7N ＴＢ 06 12 34.7 106 48 45.5 7.012 6.661 -0.351 -0.088CLK8 ＴＢ 06 12 58.5 106 51 19.4 10.195 13.558 13.633 13.653 3.363 0.841 0.075 0.02 3.458CLK16 ＴＢ 06 13 04.98 106 51 42.5 16.743 11.537 11.668 11.696 -5.206 -1.302 0.131 0.028CL32N ＴＢ 06 13 31.0 106 51 47.9 15.069 14.968 15.067 15.069 -0.101 -0.025 0.099 0.002 0CL01 ＴＢ 06 18 09.1 106 51 17.6 30.774 30.779 30.789 30.781 0.005 0.001 0.01 -0.008 0.007CL0 ＴＢ 06 18 18.8 106 51 32.8 40.501 40.516 40.548 40.548 0.015 0.004 0.032 0 0.047CDK4 ＴＢ 06 11 38.46 106 49 14.45 4.004 3.921 4.036 4.091 -0.083 -0.021 0.115 0.055 0.087C4N ＴＢ 06 11 27.5 106 50 36.0 8.218 7.677 8.284 8.343 -0.541 -0.135 0.607 0.059 0.125AKW09R Ｂ 06 09 06.3 106 46 18.1 1.964 3.332 3.317 3.291 1.368 0.342 -0.015 -0.026 1.327AKW18 ＴＢ 06 09 28.5 106 46 04.5 4.995 4.198 4.935 4.91 -0.797 -0.199 0.737 -0.025 -0.085C10N Ｂ 06 10 19.2 106 49 54.8 5.143 5.064 5.227 5.249 -0.079 -0.020 0.163 0.022 0.106CID024N ＴＢ 06 08 20.5 106 48 42.3 1.659 1.321 1.762 1.756 -0.338 -0.085 0.441 -0.006 0.097CLDT20 ＴＢ 06 08 59.8 106 50 05.8 2.226 2.226 2.373 2.276 0 0.000 0.147 -0.097 0.05PB166 Ｂ 06 07 48.6 106 48 53.4 0.924 0.817 -0.107 -0.027PP782 Ｂ 06 08 38.7 106 46 40.7 2.596 2.561 2.573 2.542 -0.035 -0.009 0.012 -0.031 -0.054CDM08 ＴＢ 06 48 17.0 106 07 41.8 1.007 0.936 -0.071 -0.018GRL9 Ｂ 06 15 40.6 106 47 07.1 21.716 21.654 -0.062 -0.016PB384 Ｂ 06 06 33.9 106 47 50.5 0.361 -0.067 -0.428 -0.107PP119 Ｂ 06 06 43.9 106 47 06.8 1.986 1.852 3.029 2.958 -0.134 -0.034 1.177 -0.071PP775 Ｂ 06 09 43.5 106 45 59.5 4.055 4.043 4.035 4.013 -0.012 -0.003 -0.008 -0.022 -0.042PP878 Ｂ 06 13 04.2 106 45 52.0 10.931 10.934 10.814 10.753 0.003 0.001 -0.12 -0.061 -0.178PP825A Ｂ 06 10 57.8 106 45 27.1 6.523 6.433 -0.09 -0.023MPW17N ＴＢ 06 15 17.8 106 49 32.1 18.329 18.138 -0.191 -0.048S1N ＴＢ 06 09 53.3 106 46 21.3 3.527 3.508 3.509 3.489 -0.019 -0.005 0.001 -0.02 -0.038PP1145B Ｂ 06 08 44.4 106 50 03.0 2.502 2.36 2.605 2.529 -0.142 -0.036 0.245 -0.076 0.027PP930 Ｂ 06 10 54.1 106 50 11.2 6.362 6.277 6.441 6.5 -0.085 -0.021 0.164 0.059 0.138PP917 Ｂ 06 10 04.6 106 49 52.8 4.895 4.5 4.557 5.011 -0.395 -0.099 0.057 0.454 0.116PB37 Ｂ 06 10 02.9 106 46 47.6 2.002 1.875 1.866 1.846 -0.127 -0.032 -0.009 -0.02 -0.156KB19N ＴＢ 06 10 57.2 106 46 06.3 4.896 4.752 4.649 4.624 -0.144 -0.036 -0.103 -0.025 -0.272GT1 ＴＢ 06 11 39.6 106 47 32.3 6.564 6.513 6.467 6.522 -0.051 -0.013 -0.046 0.055 -0.042GRW29N ＴＢ 06 15 01.0 106 47 20.7 16.923 16.927 0.004 0.001GRW22 ＴＢ 06 14 21.6 106 47 06.3 17.515 17.396 -0.119 -0.030GRW18 ＴＢ 06 14 09.1 106 47 09.66 17.152 16.203 -0.949 -0.237GRW16 ＴＢ 06 14 01.1 106 47 36.6 13.888 13.696 13.69 13.809 -0.192 -0.048 -0.006 0.119 -0.079GRW15N ＴＢ 06 13 45.2 106 47 44.9 12.545 12.56 0.015 0.004GRW10 ＴＢ 06 12 42.8 106 47 40.8 9.169 9.158 -0.011 -0.003GRL099 ＴＢ 06 14 21.6 106 47 06.3 18.12 20.236 2.116 0.529CLDT27 ＴＢ 06 08 17.3 106 49 01.8 1.183 1.036 1.267 1.248 -0.147 -0.037 0.231 -0.019 0.065PSA1 ＴＢ 06 13 01.6 106 45 50.8 11.85 11.84 11.737 11.706 -0.01 -0.002 -0.103 -0.031 -0.144PSA5N ＴＢ 06 11 25.5 106 45 54.4 7.146 7.108 7.012 6.987 -0.038 -0.010 -0.096 -0.025 -0.159PSA14N ＴＢ 06 13 38.1 106 45 50.9 14.402 14.546 14.359 14.404 0.144 0.036 -0.187 0.045 0.002PSAPBCC40 Ｂ 06 09 13.3 106 44 52.6 3.496 3.503 3.51 3.482 0.007 0.002 0.007 -0.028 -0.014PST0N ＴＢ 06 14 15.6 106 45 52.5 16.635 16.367 16.446 16.56 -0.268 -0.067 0.079 0.114 -0.075PST87 ＴＢ 06 15 10.73 106 46 12.38 16.213 21.648 21.492 21.584 5.435 1.359 -0.156 0.092 5.371WBCW29 ＴＢ 06 07 23.5 106 46 26.8 5.257 5.119 5.213 5.176 -0.138 -0.035 0.094 -0.037 -0.081TP38 ＴＢ 06 15 43.4 106 46 57.2 24.532 24.847 24.703 24.777 0.315 0.079 -0.144 0.074 0.245BM97N 06 13 35.1 106 49 02.5 10.538 10.04 -0.498 -0.125TPN 06 06 24.4 106 53 27.1 2.144

Type of BM

so

Coordinates Elevaiton (m.asl) Displacement (m)

Note）red color is survey point which is judged that survey point does not have same condition.

①　2012 ②　2013 dH（②-①）

ADD01 22.616 22.656 0.040ADD02 18.567 18.660 0.093ADD03 18.285 18.309 0.024ADD04 22.651 22.521 -0.130ADD05 16.446 16.488 0.042ADD06 6.745 6.741 -0.004ADD07 1.024 1.407 0.383ADD08 0.868 0.984 0.116ADD09 1.496 1.451 -0.045ADD10 1.810 1.772 -0.038ADD11 1.774 1.699 -0.075ADD12 2.603 2.470 -0.133ADD13 1.999 1.940 -0.059ADD14 20.883 20.873 -0.010ADD15 -0.264 -0.290 -0.026ADD16 3.975 3.944 -0.031


2-10

(2) GPS Survey

Table 2.3-3 shows the result of GPS survey from 2008 to 2013. As shown in Table- , land subsidence rate of 3rd year (between 2012 and 2013) ranges from -0.2 to -9 cm at the survey point which is judged that survey point not have same condition between 2012 and 2013. Furthermore, displacement of several survey point is + (rise) and ranges from 2 to 3 cm. On the other hand, between 2011 and 2012, displacement of almost all survey points is + (rise).

Table 2.3-3 Result of GPS Survey (2007-2013)

Note: red color is survey point which is judged that survey point does not have same condition

2.3.2 Land Subsidence Analysis Result Based on the Ground Survey Result

Figure 2.3-1 shows the tendency/distribution of land subsidence rate between 2nd year and 3rd year based on the result of ground survey. Figure- is drawn based on following prior condition. There are several survey points which have maximum + (rise) displacement with around 10cm at

the survey point. On the assumption that those survey points was stable between 2012 and 2013, and based on this assumption, displacement of all survey point was corrected. This means that it is assumed that standard point of survey NWP-60 also subsided 10cm between 2012 and 2013.

From the result of leveling survey in the 2nd year (2012), it was confirmed that there are many survey points which have + (rise) displacement compared to 1st year. Although it was doubted that NWP-60 was subsided based on the result of leveling survey in the 2nd year, it cannot be judged. On the other hand, it was confirmed that there are many survey points which have + (rise) displacement based on the result of leveling survey in the 3rd year. Therefore it was evaluated that NWP-60 was subsided and land subsidence rate at the point is around 10cm between 2012 and 2013. Thus above correction was conducted.

According to Figure- , land subsidence zone with from10 to 12cm rate seems to extend toward to NWP-60. From this point, it is judged that there is possibility to have a subsidence with 10 to 12cm rate at the point of NWP-60.

Displacement of each survey point between 2012 and 2013 which is calculated based on above consideration is shown in Table 2.3-4.

Total Per year Total Per year

GCP01 0.165 -0.010 -0.046 -0.045 -0.175 -0.058 -0.036 0.001 -0.210 -0.042GCP02 0.293 0.267 0.311 0.309 -0.026 -0.009 0.044 -0.002 0.016 0.003GCP03 -0.539 -0.832 0.075 0.030 -0.293 -0.098 0.907 -0.045 0.569 0.114GCP04 1.460 1.299 1.345 1.994 -0.161 -0.054 0.046 0.649 0.534 0.107GCP05 3.886 3.998 4.127 4.162 0.112 0.037 0.129 0.035 0.276 0.055GCP06 1.112 1.256 1.306 1.345 0.144 0.048 0.050 0.039 0.233 0.047GCP07 1.449 2.294 2.244 2.245 0.845 0.282 -0.050 0.001 0.796 0.159GCP08 1.632 1.556 1.620 1.621 -0.076 -0.025 0.064 0.001 -0.011 -0.002GCP09 2.189 2.168 2.211 2.262 -0.021 -0.007 0.043 0.051 0.073 0.015GCP10 1.337 1.120 1.282 1.340 -0.217 -0.072 0.162 0.058 0.003 0.001GCP11 2.061 1.964 2.037 2.030 -0.097 -0.032 0.073 -0.007 -0.031 -0.006GCP12 3.776 3.842 3.878 3.945 0.066 0.022 0.036 0.067 0.169 0.034GCP13 2.169 1.975 2.103 2.095 -0.194 -0.065 0.128 -0.008 -0.074 -0.015GCP14 3.616 3.368 3.434 3.416 -0.248 -0.083 0.066 -0.018 -0.200 -0.040GCP15 4.581 4.562 4.575 4.602 -0.019 -0.006 0.013 0.027 0.021 0.004GCP16 6.514 6.265 6.392 6.357 -0.249 -0.083 0.127 -0.035 -0.157 -0.031GCP17N 6.065 5.929 6.044 6.100 -0.136 -0.045 0.115 0.056 0.035 0.007GCP18 13.870 13.709 13.751 13.708 -0.161 -0.054 0.042 -0.043 -0.162 -0.032GCP19 6.253 6.125 6.112 6.118 -0.128 -0.043 -0.013 0.006 -0.135 -0.027GCP20 7.312 7.292 7.383 7.370 -0.020 -0.007 0.091 -0.013 0.058 0.012GCP21 8.014 7.697 7.991 7.847 -0.317 -0.106 0.294 -0.144 -0.167 -0.033GCP22 14.003 13.846 13.938 13.909 -0.157 -0.052 0.092 -0.029 -0.094 -0.019GCP23 14.978 14.998 15.022 15.018 0.020 0.007 0.024 -0.004 0.040 0.008GCP24 13.167 12.911 13.185 13.092 -0.256 -0.085 0.274 -0.093 -0.074 -0.015GCP25 11.213 11.085 11.081 11.109 -0.128 -0.043 -0.004 0.028 -0.104 -0.021GCP26 19.257 19.096 19.275 19.265 -0.161 -0.054 0.179 -0.010 0.008 0.002GCP27N 30.005 30.056 29.965 30.005 10.002 0.051 -0.091 29.965 5.993GCP27 29.949 29.998 30.056 0.049 0.016 0.058 -29.949 -5.990GCP28 30.598 30.652 30.689 34.512 0.054 0.018 0.037 3.823 3.914 0.783

2008 2011 2012 2013Displacement between 2008 and 2013

Elevation Surveyed by GPSDispalcement between 2008 and 2011 Displacement

between 2011 and2012

Displacementbetween 2012 and

2013


2-11

Table 2.3-4 Leveling Survey Result (After correction)

Based on the land subsidence analysis by a ground survey, following tendency can be seen. As a result of the land subsidence analysis in the 1st year, it was confirmed that land subsidence of

south area in the study area is progressing. Land subsidence analysis in the 3rd year also grasps this tendency and also land subsidence area is expanding towards to south.

As a result of the land subsidence analysis in the 1st year, it was confirmed that land subsidence of western area in the study area is also progressing. Land subsidence analysis in the 3rd year also grasps this tendency.

In the central area of study area, although there is variation of land subsidence rate with location, it is thought to be that land subsidence in the central area of study area also is also progressing.

Latitude Longitude 2007 2011 2012 2013 2007-2011 2007-2011/Year 2011-2012 2012-20132012-2013

After correction2007-2013

PB363 B 06 09 10.4 106 47 41.9 4.895 4.761 4.907 4.909 -0.134 -0.033 0.146 0.002 -0.098 0.014PB64 Ｂ 06 11 57.7 106 50 42.8 8.566 8.953 9.073 9.083 0.387 0.097 0.12 0.01 -0.09 0.517PB55 Ｂ 06 11 54.4 106 48 35.9 7.468 7.399 7.606 7.605 -0.069 -0.017 0.207 -0.001 -0.101 0.137NWP487 Ｂ 06 12 28.3 106 50 54.6 8.917 8.789 8.907 8.923 -0.128 -0.032 0.118 0.016 -0.084 0.006WBCW31 ＴＢ 06 06 56.8 106 46 28.3 0.666 0.533 0.603 0.564 -0.133 -0.033 0.07 -0.039 -0.139 -0.102PBM30 Ｂ 06 12 56.2 106 49 00 7.861 7.729 7.842 7.825 -0.132 -0.033 0.113 -0.017 -0.117 -0.036WBCK7R ＴＢ 06 12 12.5 106 49 38.3 7.853 7.931 0.078 0.020PBM34 Ｂ 06 14 26.4 106 49 16.1 13.345 13.387 13.313 13.305 0.042 0.011 -0.074 -0.008 -0.108 -0.04PP553 （ＴＢ） 06 16 50.2 106 49 11.3 34.795 35.013 34.95 35.056 0.218 0.054 -0.063 0.106 0.006 0.261PP920 Ｂ 06 10 15.3 106 48 39.5 3.252 3.017 3.255 3.195 -0.235 -0.059 0.238 -0.06 -0.16 -0.057TA23N ＴＢ 06 16 06.2 106 48 40.9 28.269 28.187 28.089 28.203 -0.082 -0.020 -0.098 0.114 0.014 -0.066WBCK4 ＴＢ 06 12 03.2 106 48 03.2 7.862 7.976 8.161 8.166 0.114 0.029 0.185 0.005 -0.095 0.304WBCK6 ＴＢ 06 12 10.6 106 49 27.4 7.667 7.683 7.811 7.856 0.016 0.004 0.128 0.045 -0.055 0.189WBCK10 ＴＢ 06 12 15.7 106 49 51.5 7.921 7.897 8.013 8.057 -0.024 -0.006 0.116 0.044 -0.056 0.136WL01 Ｂ 06 10 26.9 106 48 22.7 6.13 6.053 6.234 6.233 -0.077 -0.019 0.181 -0.001 -0.101 0.103CDK9 ＴＢ 06 11 12.9 106 49 21.4 3.261 3.471 3.584 3.647 0.21 0.053 0.113 0.063 -0.037 0.386MPW02N ＴＢ 06 16 56.2 106 50 02.0 24.892 24.652 -0.24 -0.060KRT24N ＴＢ 06 14 19.9 106 49 03.8 13.082 13.099 13.219 13.22 0.017 0.004 0.12 0.001 -0.099 0.138KRT7N ＴＢ 06 12 34.7 106 48 45.5 7.012 6.661 -0.351 -0.088CLK8 ＴＢ 06 12 58.5 106 51 19.4 10.195 13.558 13.633 13.653 3.363 0.841 0.075 0.02 -0.08 3.458CLK16 ＴＢ 06 13 04.98 106 51 42.5 16.743 11.537 11.668 11.696 -5.206 -1.302 0.131 0.028 -0.072CL32N ＴＢ 06 13 31.0 106 51 47.9 15.069 14.968 15.067 15.069 -0.101 -0.025 0.099 0.002 -0.098 0CL01 ＴＢ 06 18 09.1 106 51 17.6 30.774 30.779 30.789 30.781 0.005 0.001 0.01 -0.008 -0.108 0.007CL0 ＴＢ 06 18 18.8 106 51 32.8 40.501 40.516 40.548 40.548 0.015 0.004 0.032 0 0.047CDK4 ＴＢ 06 11 38.46 106 49 14.45 4.004 3.921 4.036 4.091 -0.083 -0.021 0.115 0.055 -0.045 0.087C4N ＴＢ 06 11 27.5 106 50 36.0 8.218 7.677 8.284 8.343 -0.541 -0.135 0.607 0.059 -0.041 0.125AKW09R Ｂ 06 09 06.3 106 46 18.1 1.964 3.332 3.317 3.291 1.368 0.342 -0.015 -0.026 -0.126 1.327AKW18 ＴＢ 06 09 28.5 106 46 04.5 4.995 4.198 4.935 4.91 -0.797 -0.199 0.737 -0.025 -0.125 -0.085C10N Ｂ 06 10 19.2 106 49 54.8 5.143 5.064 5.227 5.249 -0.079 -0.020 0.163 0.022 -0.078 0.106CID024N ＴＢ 06 08 20.5 106 48 42.3 1.659 1.321 1.762 1.756 -0.338 -0.085 0.441 -0.006 -0.106 0.097CLDT20 ＴＢ 06 08 59.8 106 50 05.8 2.226 2.226 2.373 2.276 0 0.000 0.147 -0.097 -0.197 0.05PB166 Ｂ 06 07 48.6 106 48 53.4 0.924 0.817 -0.107 -0.027PP782 Ｂ 06 08 38.7 106 46 40.7 2.596 2.561 2.573 2.542 -0.035 -0.009 0.012 -0.031 -0.131 -0.054CDM08 ＴＢ 06 48 17.0 106 07 41.8 1.007 0.936 -0.071 -0.018GRL9 Ｂ 06 15 40.6 106 47 07.1 21.716 21.654 -0.062 -0.016PB384 Ｂ 06 06 33.9 106 47 50.5 0.361 -0.067 -0.428 -0.107PP119 Ｂ 06 06 43.9 106 47 06.8 1.986 1.852 3.029 2.958 -0.134 -0.034 1.177 -0.071 -0.171PP775 Ｂ 06 09 43.5 106 45 59.5 4.055 4.043 4.035 4.013 -0.012 -0.003 -0.008 -0.022 -0.122 -0.042PP878 Ｂ 06 13 04.2 106 45 52.0 10.931 10.934 10.814 10.753 0.003 0.001 -0.12 -0.061 -0.161 -0.178PP825A Ｂ 06 10 57.8 106 45 27.1 6.523 6.433 -0.09 -0.023MPW17N ＴＢ 06 15 17.8 106 49 32.1 18.329 18.138 -0.191 -0.048S1N ＴＢ 06 09 53.3 106 46 21.3 3.527 3.508 3.509 3.489 -0.019 -0.005 0.001 -0.02 -0.12 -0.038PP1145B Ｂ 06 08 44.4 106 50 03.0 2.502 2.36 2.605 2.529 -0.142 -0.036 0.245 -0.076 -0.176 0.027PP930 Ｂ 06 10 54.1 106 50 11.2 6.362 6.277 6.441 6.5 -0.085 -0.021 0.164 0.059 -0.041 0.138PP917 Ｂ 06 10 04.6 106 49 52.8 4.895 4.5 4.557 5.011 -0.395 -0.099 0.057 0.454 0.354 0.116PB37 Ｂ 06 10 02.9 106 46 47.6 2.002 1.875 1.866 1.846 -0.127 -0.032 -0.009 -0.02 -0.12 -0.156KB19N ＴＢ 06 10 57.2 106 46 06.3 4.896 4.752 4.649 4.624 -0.144 -0.036 -0.103 -0.025 -0.125 -0.272GT1 ＴＢ 06 11 39.6 106 47 32.3 6.564 6.513 6.467 6.522 -0.051 -0.013 -0.046 0.055 -0.045 -0.042GRW29N ＴＢ 06 15 01.0 106 47 20.7 16.923 16.927 0.004 0.001GRW22 ＴＢ 06 14 21.6 106 47 06.3 17.515 17.396 -0.119 -0.030GRW18 ＴＢ 06 14 09.1 106 47 09.66 17.152 16.203 -0.949 -0.237GRW16 ＴＢ 06 14 01.1 106 47 36.6 13.888 13.696 13.69 13.809 -0.192 -0.048 -0.006 0.119 0.019 -0.079GRW15N ＴＢ 06 13 45.2 106 47 44.9 12.545 12.56 0.015 0.004GRW10 ＴＢ 06 12 42.8 106 47 40.8 9.169 9.158 -0.011 -0.003GRL099 ＴＢ 06 14 21.6 106 47 06.3 18.12 20.236 2.116 0.529CLDT27 ＴＢ 06 08 17.3 106 49 01.8 1.183 1.036 1.267 1.248 -0.147 -0.037 0.231 -0.019 -0.119 0.065PSA1 ＴＢ 06 13 01.6 106 45 50.8 11.85 11.84 11.737 11.706 -0.01 -0.002 -0.103 -0.031 -0.131 -0.144PSA5N ＴＢ 06 11 25.5 106 45 54.4 7.146 7.108 7.012 6.987 -0.038 -0.010 -0.096 -0.025 -0.125 -0.159PSA14N ＴＢ 06 13 38.1 106 45 50.9 14.402 14.546 14.359 14.404 0.144 0.036 -0.187 0.045 -0.055 0.002PSAPBCC40 Ｂ 06 09 13.3 106 44 52.6 3.496 3.503 3.51 3.482 0.007 0.002 0.007 -0.028 -0.128 -0.014PST0N ＴＢ 06 14 15.6 106 45 52.5 16.635 16.367 16.446 16.56 -0.268 -0.067 0.079 0.114 0.014 -0.075PST87 ＴＢ 06 15 10.73 106 46 12.38 16.213 21.648 21.492 21.584 5.435 1.359 -0.156 0.092 -0.008 5.371WBCW29 ＴＢ 06 07 23.5 106 46 26.8 5.257 5.119 5.213 5.176 -0.138 -0.035 0.094 -0.037 -0.137 -0.081TP38 ＴＢ 06 15 43.4 106 46 57.2 24.532 24.847 24.703 24.777 0.315 0.079 -0.144 0.074 -0.026 0.245BM97N 06 13 35.1 106 49 02.5 10.538 10.04 -0.498 -0.125TPN 06 06 24.4 106 53 27.1 2.144

Type of BM

so

Coordinates Elevaiton (m.asl) Displacement (m)


2-12

Note: red line shows the outline of leveling survey network in the 3rd year. This outline differs to the one of 1st year (2011) and 2nd year (2012) because leveling survey in 3rd year was carried out including additional survey point which was added in the 2nd year therefore leveling survey network was changed in 3rd year.

Figure 2.3-1 Situation of Land Subsidence between 2nd year (2012) and 3rd year (2013)


3-1

CHAPTER 3 SITUATION OF LAND SUBSIDENCE AROUND STUDY AREA

3.1 In the Project Period

3.1.1 Condition of Land Subsidence

The result of land subsidence analysis of three years in this project shows following points. As shown in Table 3.1-1, the rate of land subsidence differs with location. In the table, study area

is divided into four (4) areas and each area has different rate of land subsidence. Land subsidence rate differs every year. There is variation in the rate of land subsidence every

year.

Table 3.1-1 Outline of the Land Subsidence Rate over the Years

Area 2007～2008

2008～2009

2009～2010

2010～2011

2007～2011

2008～2011

2012～2013

North 6～24 6～12 4～6 ～6 ～36 ～24 12～ West ～8 4～6 ～4 ～4 ～9 ～9 12～15 South ～6 ～8 ～4 ～4 ～12 ～12 ～12 Central Very

limited areaVery little Very little Very little 2 to 3cm in

the very limited

area

← 10～12

Note Result of DInSAR analysis corrected by ground survey result Result of Ground survey

3.1.2 Future Forecast of Land Subsidence

Based on the result of land subsidence analysis by DInSAR analysis in the 1st year and result of land subsidence analysis by ground survey in the 3rd year of this project, average land subsidence rate in the future is estimated. Then, total amount of land subsidence by 2050 is estimated. Table 3.1-2 shows the estimated total amount of land subsidence by 2050. As shown in the table estimate land subsidence amount by 2050 of 3rd year shows two (2) of 1st year.

Table 3.1-2 Estimate Land Subsidence Amount by 2050

Area

Result of 1st year Result of 3rd year Estimated Average

Land Subsidence Rate per Year (cm)

Estimated Total Amount of Land Subsidence by 2050

Estimated Average Land Subsidence Rate per Year

(cm)

Estimated Total Amount of Land Subsidence by

2050 North 6 228cm (around 2.5m) 15 555cm (around 5.5m) West 4 152cm (around 1.5m) 4 to12 148 to 444cm

(around 1.5 to 4.5m ) South 4 152cm (around 1.5m) 4 to12 Ditto Central Less than 3cm Less than 1m 12 444cm (around 4.5m) Note Result of DInSAR analysis corrected by ground

survey result Result of Ground survey (leveling survey)

3.2 Suggestion to the Estimation of Land Subsidence in the Future

As mentioned in the section 3.1, there is variation in the rate of land subsidence every year with location. For that reason, in order to estimate land subsidence rate in the future following points are suggested for grasping above mentioned variation of the yearly land subsidence rate and variation of land subsidence rate with location.


3-2

a) Necessity of Long-term Monitoring of Land Subsidence Rate

In order to estimate the land subsidence amount in the future it is necessary to grasp the tendency of land subsidence by the long term monitoring because there is variation of the year on the land subsidence rate. b) Necessity of Implementation of Satellite Imagery Analysis in order to grasp Variation of Land Subsidence Rate with Location.

Even though land subsidence rate can be is grasped by a ground survey at survey points which are distributed in the large area, ground survey result can check the displacement at the very point of each survey point. Therefore for grasping the condition of land subsidence which has variation with location it is necessary to install a lot of survey points (bench mark) in the large area. On the other hand, satellite imagery analysis can grasp the condition of land subsidence in large area at the same time. At the beginning of this project, the purpose of the land subsidence analysis by a satellite imagery analysis (DInSAR analysis) with correction by the result of ground survey is as follows. To conduct a land subsidence analysis for the large area in the JAKARA DKA area To formulate a procedure and method of land subsidence analysis by a satellite imagery analysis

(DInSAR analysis) with correction by the result of ground survey To set up limited number of ground survey points and location which are effective for the

correction of DInSAR analysis result Above mentioned procedure and method including a procedure of setting up of ground survey

points were supposed to arranged in a manual., Then a draft manual for correction DInSAR analysis result by ground survey result was prepared in the first year of this project. However, satellite imagery analysis (DInSAR analysis) for land subsidence analysis could not be conducted due to the stop operation of ALOS. On the other hand, JAXA has a plan to launch the ALOS 2 satellite near future. After launching the ALOS 2, a long term monitoring by a satellite imagery analysis by ALOS 2 in the succeeding project is recommendable. In addition, in that case, it is recommendable to expand the area of the satellite imaginary analysis.

Manual for DInSAR Correction based on

GPS/Leveling Measurement Result

March 2012

Yachiyo Engineering Co., Ltd.

Remote Sensing Technology Center of Japan

i

Table of Contents

1. General Remarks ................................................................................................................... 1

2. DInSAR Analysis and Correction of DInSAR Analysis Result ............................................ 2

2.1. DInSAR Analysis ........................................................................................................... 2

2.2. Correction of the DInSAR Analysis Result ................................................................... 3

3. Application of this Manual .................................................................................................... 5

4. Assumption for Correction of DInSAR Analysis Result and

Condition of Data for Correction........................................................................................... 6

4.1. Assumption for Correction of DInSAR Analysis Result ............................................... 6

4.2. Condition of Data for Correction ................................................................................... 6

5. Correction Procedure ........................................................................................................... 10

5.1. Data Conversion of GPS/Leveling Measurement ........................................................ 10

5.2. Generation of a Map Project by ArcGIS Software ....................................................... 11

5.3. Improting DInSAR Result ........................................................................................... 11

5.4. Importing Shape File of GPS/Leveling Measurement ................................................. 11

5.5. Detection of both Surface Displacement Value from GPS/Leveling

Measurement and Phase Value from DInSAR Result .................................................. 11

5.6. Data Conversion of Database Dile (DBF) of Detected Data to CSV File Format ....... 11

5.7. Error Analysis/evaluation and Derivation of Equation for DInSAR Correction.......... 11

5.8. Correction of DInSAR Result by Derived Equation .................................................... 12

Appendix:

Procedure for the DInSAR Analysis and its Correction

1

1. General Remarks Space-borne synthetic aperture radar differential interferometric analysis (DInSAR) is well known that the technology for the detection of surface displacement as line of site displacement between satellite and the earth surface. It mainly uses for monitoring of crustal/land deformation due to the earthquake and volcanic activity. And, in recent years, it has been applying to the analysis of detection of local space surface deformation like landslide, subsidence, and so on. GPS measurement and leveling measurement have been conventionally used for the land subsidence monitoring however, it is difficult to understood spatial distribution of subsidence displacement because it measures displacement as point information. Opposite to this, DInSAR has an advantage that it can be measured spatial distribution of land subsidence. And it can clarify not only amount of displacement but also trend of land subsidence displacement using time series of DInSAR result. From this, DInSAR analysis is utilized for land subsidence analysis of Jakarta area in the JCFM Project. On the other hand, normally, since DInSAR result includes bias or inclined error. In order to measure the displacement of land subsidence with high accuracy, a correction of DInSAR result using data of displacement of ground control point (bench mark) obtained by a ground survey is expected. Therefore, in the JCFM Project, correction of DInSAR result by using GPS and leveling result is introduced to grasp the displacement with high accuracy due to land subsidence. In this manual, trend analysis of the land subsidence around Jakarta area by DInSAR analysis and correction of DInSAR result using GPS/leveling result are reported. This manual also describes the method and procedure of a correction of DInSAR analysis result based on the field survey result such as GPS and Leveling survey result. This manual is prepared based on the following consideration. This manual supposes that acquisition of satellite data/image and DInSAR analysis will be

conducted by an authority, foundation or other third party. And a correction of DInSAR analysis result based on the result of ground survey will be

conducted by Indonesia side. However, since there are a few precedents for the DInSAR analysis correction by using the result of ground survey and methodology of correction is now under study, the technique of the correction has not been established. Therefore, this manual is not prepared for conducting a correction of DInSAR analysis result by Indonesia side and this manual is prepared for a material for establishing a method of correction of DInSAR analysis result based on the field survey result in the future. And detailed description of a portion of correction, such as an error analysis/evaluation and derivation of equation for DInSAR correction procedure, and correction of DInSAR result by derived equation procedure, is not mentioned in this manual. In addition, purpose of preparation of this manual is thought to be as follows. Through a process of correction work by using actual satellite data and field survey data, it is thought to be important to clarify the point to be required further study for the establishment of correction method in the future.

2

2. DInSAR Analysis and Correction of DInSAR Analysis Result 2.1. DInSAR Analysis

2.1.1. Principle of DInSAR Analysis

The SAR is a method of measuring the size and surface characteristics so on of an objective. Intensity of reflected radio wave (micro wave) that is irradiated from satellite or airplane to the ground surface is measured for that. Since a micro wave can pass the clouds the SAR can be applied in the night time and if it rains. The SAR interferometry is a technical method for grasping the change of ground surface (displacement) of particular area in a certain period. Two times of SAR observation are conducted before and after the certain period. The distance of ground surface between SAR antenna and ground surface is measured by each observation. Then the change of ground surface (displacement) can be grasped. The change of ground surface grasped by the SAR interferometry is shown as a difference of colors on an image of SAR interferometry. The SAR interferometry can detect the change of ground surface of wide area. DInSAR (Differential SAR Interferometry) is a technique of data processing. And it can measure the change of particular object accurately based on the phase data of SAR image. For this, it is required more than 2 pieces of SAR image/ pair of SAR image of same object/target area.

(Source:METI)

Figure 2.1 Conceptual Diagram of the Factor of Crustal Movement by the SAR Interferometry Analysis

In the JCFM Project, DInSAR analysis was conducted in order to grasp the condition of land subsidence in DKI Jakarta and the Ciliwung River Basin. Furthermore, a correction of the DInSAR analysis result by using the displacement data of BM which were calculated based on the result of ground survey. 2.1.2. Accuracy and Noise (Factor of Error)

Since SAR data has various noises caused by the climate and observation condition, each SAR

Change of the Distance between a Satellite and Ground Surface analyzed by the SAR interferometry

Diastrophism (Upheaval)

Second Observation

First Observation

3

interferometry data has individual accuracy. Following two (2) items are the main factor of error (noise) of SAR interferometry. 2.1.3. Propagation delay of ionosphere effect

Ionosphere (50 to 100 km above ground surface) and atmospheric layer exist on the propagation path of radio wave from satellite to ground surface. When the radio wave passes through these ionosphere and atmospheric layer, errors (propagation delay) occur. 2.1.4. Propagation delay by atmosphere and water vapor

When the radio wave from a satellite to ground surface passes through atmospheric layer, a propagation delay by atmosphere and water vapor is caused. 2.2. Correction of the DInSAR Analysis Result

2.2.1. Work Flow

In this manual, “correction” is used as following definition; After termination of DInSAR analysis (DInSAR analysis will be conducted by an authority, foundation or third party), based on this, Indonesia side will conduct bias and inclination correction of the result of DInSAR analysis using the result of Leveling/GPS survey.

Figure 2.2 Work Flow

ObtainingSattellite Image of ALOS Ground Survey (Leveling /GPS Survey)ObtainingData of Ground Displacement

Generating a Map project by ArcGIS

Importing shape file of GPS/Leveling measurement result to map project

Detection of both surface displacement value from GPS/Leveling measurement result and phase value from DInSAR result using Spatial Analyst tool

Data conversion of database file (DBF) of detected datato CSV file format (DBF to CSV)

Error analysis/evaluation and derivation of equation for DInSAR correction

Correction of DInSAR result by derived equation

DIｎSAR Analysis Data conversion of GPS/Leveling measurement result (CSV to Shape)

Importing DInSAR result for map project

Gamma

ArcGIS

DInSAR AnalysisObtaining Satellite Image (JAXA)Analysed by Japanese Foundation

Correction of DIｎSAR Analysis Result

by Indonesia side (Main item of this Manual）

4

2.2.2. Objectives of this Correction

Generally, since DInSAR analysis result indicate a tendency of land subsidence or upheaval of ground surface based on the wave length of micro wave that is irradiated from a satellite, the analysis result (displacement analyzed by DInSAR analysis) has an observation range with several cm. Therefore it is required a correction of the result based on the ground surface displacement that is measured by a leveling/GPS survey in order to grasp the rate of land subsidence precisely. This correction is carried out to grasp the condition, rate and distribution of land subsidence in the observation area precisely.

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3. Application of this Manual This manual applies to the correction work of the DInSAR result that is carried out by using leveling/GPS survey result. Leveling survey and GPS survey is required to carry out almost same time of the date when satellite data for DInSAR analysis is acquired. Definition of the technical terms that are used in this manual is as follows: DInSAR analysis:

This is an analysis of satellite image/data obtained by the ALOS. By this analysis propagation delay of ionosphere effect, and atmosphere and water vapor are corrected. This correction will be conducted by Japanese authority or foundation and result of DInSAR analysis will be handed over to the Indonesia side for correction by leveling/GPS survey result. DInSAR analysis result correction:

This correction is main object of this manual. DInSAR analysis result handed by Japanese side is corrected based on leveling/GPS survey result.

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4. Assumption for Correction of DInSAR Analysis Result and Condition of Data for Correction

4.1. Assumption for Correction of DInSAR Analysis Result

Correction method in this manual is based on the following assumptions. However, assumption 2 described in the box is considered and dealt with in the phase of DInSAR analysis.

Table 4.1 Assumption for Correction of DInSAR Analysis Result

Assumption 1 Horizontal surface displacement due to the land subsidence can be negligible because horizontal displacement is quite smaller than vertical displacement.

Assumption 2 Phase propagation error by atmosphere and water vapor has not been considered. Correction of phase propagation error of above is under study and certain method of correction has not been established therefore these phase propagation error has not been considered.

4.2. Condition of Data for Correction

4.2.1. Satellite Imagery Data for DInSAR Analysis

Information regarding data/image that is used for the DInSAR analysis and analysis result are handed over to Indonesia side from Japanese authority or foundation. These information should specify on a report of the correction of DInSAR analysis clearly. Following items should be written on the report.

Observation date Name of satellite Path/Row Orbit direction Observation mode Off-nadir angle Bperp (base line length of perpendicular), and others

Table 4.2 List of utilized ALOS/PALSAR data in the JCFM Project (Example)

No. Observation date Path / Row Orbit direction Observation mode Off-nadir angle 1 2007/01/31 437 / 7060 Ascending+ FBS* 34.3 (deg.) 2 2008/02/03 437 / 7060 Ascending+ FBS* 34.3 (deg.) 3 2009/02/05 437 / 7060 Ascending+ FBS* 34.3 (deg.) 4 2010/02/08 437 / 7060 Ascending+ FBS* 34.3 (deg.) 5 2011/02/11 437 / 7060 Ascending+ FBD** 34.3 (deg.)

*FBS: Fine Beam Single polarization mode (HH polarization) **FBD: Fine Beam Dual polarization mode (HH & HV polarization)

+ Ascending: orbit heading north, opposite is “Descending”

Table 4.3 Analytical Pair of DInSAR (Example)

Case No. Master Slave Bperp* Case-1 2008/02/03 2007/01/31 -220.98 (m) Case-2 2009/02/05 2008/02/03 531.64 (m) Case-3 2010/02/08 2009/02/05 -401.44 (m) Case-4 2011/02/11 2010/02/08 563.15 (m) Case-5 2011/02/11 2007/01/31 -654.79 (m) Case-6 2011/02/11 2008/02/03 -433.88 (m)

*Perpendicular Baseline: Perpendicular distance of two satellites

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4.2.2. General Condition of DInSAR Analysis Result

DInSAR analysis result will be handed over from Japan side by following data format.

Table 4.4 Data Format of DInSAR Analysis Result

File Type GeoTIFF Data Type Double Containing data (unit) Phase (radians) Map Coordinates/ Map Projection UTM (WGS84)

General condition of DInSAR analysis result should be written on the report of correction. 4.2.3. General Condition of GPS/ Leveling Survey

(1) Condition of Data

Ground survey data such as leveling survey and GPS survey is used for the correction of DInSAR analysis result. Survey data such as GPS survey network or/and leveling survey network in the analysis object domain should be used and following data format is recommended to the GPS/ leveling survey data.

Table 4.5 Data Format of Ground Survey

File type CSV Data type Double Contained data（unit） X, Y, and Displacement (m) Map coordinate / Map projection UTM (WGS84)

General condition of GPS/leveling survey result should be written on the report of correction. (2) Specifications of the Survey

1) Leveling Survey: Benchmark Survey

Survey Equipment:

Automatic of digital level for height measurement should be used. Methodology of Leveling Survey:

Leveling survey should be carried out for the benchmarks which are established by BAKOSRTANAL or/and DKI Jakarta. Ground elevation of each benchmark should be checked annually and displacement of ground surface by a land subsidence can be grasped annually. In order to ensure accuracy of leveling survey, appropriate survey method should be applied. Mis-closure of leveling between control points should not exceed +20mm×√D (D: measured distance in kilometer). The accuracy of leveling survey that is written on the survey report from survey contractor should be written on the correction report.

Leveling Survey Network:

The leveling survey network was established in 2011. According to the result of the land subsidence analysis in 2011, it was clarified that there were a few areas where rate of land subsidence was relatively high compare to other areas. Since existing survey network does not cover some of these areas, ground surface displacement due to land subsidence of such areas cannot be measured by existing survey network. Therefore it is required to set up new survey points (BM or temporary BM) along the existing survey network in order to measure the ground

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surface displacement of such areas.

2) GPS Survey

Survey Equipment:

GPS receivers (e.g. TOPCON Legacy – H GD) with the following accuracy shall be prepared by the Contractor for the GPS Survey.

- Horizontal : ±5ppm x Distance between control points (5cm par 10km)

- Vertical : ±5ppm x Distance between control points (5cm par 10km)

Methodology of GPS survey:

(a) More than 3 GPS instruments having the equivalent accuracy of TOPCON Legacy – H GD shall be used for the measuring.

(b) Elevation mask shall be 15 degrees.

(c) Signals from more than 4 satellites shall be received at each point simultaneously.

(d) Observation duration of the respective base control points shall be more than 1 hour.

GPS survey network:

Existing GPS Survey Network: This survey network was established in 2011. As mentioned 1) of this section, for the areas where rate of land subsidence is relatively high compare to other areas and are not covered with existing survey network, a few survey points should be selected from the additional survey points (BM or temporary BM) chosen/established for leveling survey. GPS survey should also be conducted at those survey points in order to confirm the measurement accuracy of the GPS survey.

3) Implementation Time of Survey

Because survey results are used for the correction of DInSAR analysis result, it is required that implementation of ground survey is almost same time of acquisition of satellite image data which are used for DInSAR analysis. Implementation schedule of ground survey, such as leveling survey and GPS survey, for correction of DInSAR analysis should be written on the report. 4) Datum Point of Ground Elevation

A control point of NWP60 having elevation of 41.161m established by Balai Besar Wilayah Sungai Ciliwung - Cisadane Office shall be used as elevation reference for the survey work. 5) Examination of Leveling Survey and GPS Survey Network

For the leveling survey and GPS survey, Leveling survey network and GPS survey network mentioned 1) and 2) will be used for the time being. However establishment of effective and efficient survey method including set up of survey network is required based on the result of correction and survey in the future. Following methods are thought to be options. Leveling survey for leveling survey network GPS survey for GPS survey network Leveling and GPS survey for selected effective and efficient bench mark and temporary bench

mark

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(3) Outcomes from Survey Contractor

1) Leveling Survey

(a) Data formatted in 4.2.3 (1)

(b) Report explaining BAKOSURTANAL coordinating system and reference BM (Word File)

(c) Location map of benchmark network (AutoCAD 2005 file)

(d) List of benchmark network including 1) name, 2) coding, 3) Elevation, 4) Organization, 5) Year established (Excel file)

(e) Description of benchmarks written in English, form of which is shown in Appendix 4 (Word of Excel file)

2) GPS Survey

(a) Data formatted in 4.2.3 (1)

(b) Location and Network Map of Base Control Points (AutoCAD 2005 File)

(c) Coordinates and Elevation of Base Control Points (Text file)

(d) Description of Base Control Point written in English (Excel file)

(4) Inspection of the Survey Result

Ground surface displacement that is calculated based on the survey result is used for the correction of DInSAR analysis. It is required to make sure that the displacement based on the survey result is acceptable or not. For that, checking of incoming data from survey contractor is required. Especially, checking of photos of each BM (according to the BM description) is important. Based on the photos of BM, it is necessary to evaluate BM is stable or not. If there is a difficulty to check the BM is stable or not by photos from survey contractor and survey data is doubtful, it is necessary to go to site for checking BM condition directly. After that evaluation the result of displacement of each BM should be conducted.

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5. Correction Procedure The following figure shows a procedure of DInSAR analysis correction.

Figure 5.1 Flow Chart of DInSAR Analysis Correction Procedure 5.1. Data Conversion of GPS/Leveling Measurement

To import GPS/Leveling measurement result to ArcGIS, CSV file formatted GPS/Leveling measurement result should be converting to Esri Shape file format. CSV file can be converted to Shape file using the ArcCatalogue as following procedure; 1) Open the ArcCatalogue. 2) Move to specified directory included CSV file of GPS/Leveling measurement result. 3) Click right button of mouse on the specified CSV file. And select Shape file from export menu. 4) Set some parameters in the dialog to convert CSV file to Shape file. Especially, UTM (WGS84) coordinate should be selected in the Projected Coordinate menu. 5) Select output directory and click Apply button. 6) Then Shape file will be created. Computer display images are shown in appendix 5-1.

Ground Survey (Leveling /GPS Survey)ObtainingData of Ground Displacement

Generating a Map project by ArcGIS

Importing shape file of GPS/Leveling measurement result to map project

Detection of both surface displacement value from GPS/Leveling measurement result and phase value from DInSAR result using Spatial Analyst tool

Data conversion of database file (DBF) of detected datato CSV file format (DBF to CSV)

Error analysis/evaluation and derivation of equation for DInSAR correction

Correction of DInSAR result by derived equation

Data conversion of GPS/Leveling measurement result (CSV to Shape)

Importing DInSAR result for map project

ArcGIS

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5.2. Generation of a Map Project by ArcGIS Software

Launch the ArcGIS software. Select “Map” from layer window and open property dialog by mouse click of right button. Set a map projection as UTM (WGS84) in the property dialog. In here, appropriate UTM zone number should be chosen. After the set of parameters, close the dialog with click the Apply button. Computer display images are shown in appendix 5-2. 5.3. Improting DInSAR Result

Select “Map” in the layer menu with right clicks of mouse button, and select “Add” menu. Move to specified directory stored DInSAR result and select specified file of DInSAR result. DInSAR result has displayed on the screen, open the property dialog of the imagery. Then set range of value, color property, and etc., in the property dialog. Close dialog with click “Apply” button. Computer display images are shown in appendix 5-3. 5.4. Importing Shape File of GPS/Leveling Measurement

Select “Map” in the layer menu with right clicks of mouse button, and select “Add” menu. Move to specified directory stored shape file of GPS/Leveling measurement result and select specified shape file of GPS/Leveling measurement result. GPS/Leveling measurement result has displayed on the screen, open the property dialog of the shape file. Then set labels, marker and its color property, and etc., in the property dialog. Close dialog with click “Apply” button. Computer display images are shown in appendix 5-4. 5.5. Detection of both Surface Displacement Value from GPS/Leveling Measurement and

Phase Value from DInSAR Result

Select the “Spatial Analyst” from the ArcToolBox. And select the “Detection by point” menu from “Detection” menu of the Spatial Analyst. Select input raster data and referenced feature from the dialog, then select specified output dialog. Moreover, check to “Reflect all attribute” and click an OK button. Then, both surface displacement value of GPS/Leveling measurement result and phase value of DInSAR result will be detected. Computer display images are shown in appendix 5-5. 5.6. Data Conversion of Database Dile (DBF) of Detected Data to CSV File Format

DBF file can be opened by Microsoft Excel software. Open DBF file by Excel. Delete first line (rows) and save it by CSV file. Computer display images are shown in appendix 5-6. 5.7. Error Analysis/evaluation and Derivation of Equation for DInSAR Correction

Calculate error of displacement between GPS/Leveling measurement result and DInSAR result then derive an equation for DInSAR correction. An equation can be automatically derived by following procedure using the “dctool.exe”. a) Launch the “dctool.exe”. b) Input appropriate file path of input file derived from subsection 5.6. c) Input number of data.

Then, an equation of DInSAR correction will be derived based on error evaluation. Also, method of derivation of an equation for DInSAR correction has explained from following paragraph. Firstly, phase value of DInSAR result has converted to vertical displacement from Equation 1 and 2. Conversion from phase value to displacement on slant range is expressed by Equation 1. And conversion from displacement on slant range to vertical displacement is expressed by Equation 2.

0)2(4

0)2(4

Ground

Ground

dhnLOS

dhnLOS

　　

　　

(1)

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Here, LOS is displacement on the slant range (Line Of Site). is the wave length of SAR. In case of ALOS, is equal to 23.6cm. is phase value of DInSAR result. 5.0Grounddhn is

magnitude of phase rotation estimated from GPS/Leveling measurement result. Grounddh is vertical displacement of GPS/Leveling measurement result.

cos LOSdh (2) Here, dh is vertical displacement and is off-nadir angle. Secondly, error (difference) of vertical displacement between GPS/Leveling measurement result and DInSAR result is calculated by Equation 3.

GroundDInSAR dhdhERR (3) Here, ERR is value of error (difference). DInSARdh and Grounddh are vertical displacement of GPS/Leveling measurement result and DInSAR result, respectively. Thirdly, equation for DInSAR correction is derived from error value. To correct bias and inclination, following one order equation is applied (Equation 4).

bar

bYXac

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(4)

Here, c is correction value of any place. ba, is coefficient derived from least square approximation expressed from Equation 5. X, Y is UTM coordinate of any place.

2

2

EnB

DEBCb

EnB

CEnDa

(5)

Here、

n

iicA

1

2 ,

n

iirB

1

2 ,

n

iicC

1,

n

iiicrD

1,

n

iirE

1.

5.8. Correction of DInSAR Result by Derived Equation

In this subsection, correction of DInSAR result based on Equation 4 is explained. From Equation 4, correction value of any place is calculated. Therefore, consideration of this value to DInSAR result, corrected DInSAR result will be derived. However, phase value of DInSAR result is wrapped to 0 to 2pi, therefore, corrected value of phase value should be wrapped to 0 to 2pi. And, correction value derived from Equation 4 is not phase value, therefore, conversion of correction value to correction value of phase is necessary. This process can be processed by the “dctool.exe”. Also, operation of this tool is not necessary in this subsection because process has automatically processed with process of subsection 4.7. Also, method of application of derived equation for DInSAR correction has explained from following paragraph. Firstly, correction value derived from Equation 4 is converted to correction value of phase value by Equation 6.

cos

4 c (6)

And,

2

2

2

20

0

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Secondly, DInSAR result is corrected by addition of correction value derived from Equation 6 and DInSAR result. Equation is expressed by Equation 7.

DInSARcorr (7) Here, corr is phase value of corrected DInSAR result.

（a）Bias Correction

（b）Bias and Inclination Correction

Figure 5.2 Conceptual Diagram of DInSAR Correction based on GPS/Leveling Survey Result

Corrected value as difference of phase value at stable point (s)

DInSAR

DInSAR

DInSAR

ground measurement

ground measurement

ground measurement

ground measurement

Corrected(DInSAR = Ground measurement)

Original(DInSAR = Ground measurement)

Corrected value as difference of phase value at stable point (s)

DInSAR

DInSAR

DInSAR

DInSAR

ground measurement

ground measurement

ground measurement

ground measurement

Corrected(DInSAR = Ground measurement)

Original(DInSAR = Ground measurement)

Corrected parameter as difference of phase value at stable point (s)

+

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Appendix: Procedure for the DInSAR Analysis and its Correction

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5.1.1 Data conversion of GPS/Leveling survey result

C1: Selection of Shape file from export menu.

C2: Selection of coordinate system

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5.1.2 Data conversion of GPS/Leveling survey result

C3: Selection of UTM coordinate system

C4: Selection of output directory

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5.2 Data Generation of a map project by the ArcGIS Software conversion of GPS/Leveling survey result

C1: After launching ArcGIS software, to select “Map” from layer window.

C2: Selection of coordinates system C2: Set a map projection as UTM(WGS84) in the property dialog.

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5.3.1 Importing DInSAR result for map Project

C2: Move to specific directory stored DInSAR result and select specific file of DInSAR result.

C1: Selection of “Map” in the layer menu and select “ Add” menu.

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C4: then set range of value, color property, and etc., in the dialog.


C3: After displaying the DInSAR result on the screen, open the property dialog of the imagery.

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5.4.1 Importing shape file of GPS/Leveling survey result to map project

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5.5.1 Detection of both surface displacement value from GPS/Leveling measurement result and phase value from DInSAR result using Spatial Analyst tool

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5.5.2 Detection of both surface displacement value from GPS/Leveling measurement result and phase value from DInSAR result using Spatial Analyst tool

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5.6 Data conversion of database file (DBF) of detected data to CSV file format (DBF to CSV)

annex3 contents 印刷用data sheet of permeability test (falling head permeability test) date 02/...

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