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    PRESENTATION

    18th June, 2012

    BY

    Rohit Mishra

    IWRM DIVISION

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    Contents Profile Involvement in Projects Project Details Work Undertaken/ Responsibilities

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    ProfileName : Rohit MishraDesignation: Engineer TraineeEducational Qualifications:B. Tech. (Civil Engineering) from College ofTechnology, G.B.P.U.A.T. PantnagarDate of Joining: 30th September, 2010

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    Key Involvement in Projects

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    Contents

    Profile

    Key Involvement

    Project Details

    Role in Business Development

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    Profile

    Name:Shailja Chaturvedi

    Designation:Hydrologist (Trainee)

    Educational Qualifications:M. Tech. in Hydrology from Indian Institute of

    Technology, Roorkee

    Date of Joining in WAPCOS: 1st December, 2008

    Date of Joining in IWRM Division: 1st December, 2008

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    Projects in IWRM Division for the LastTwo Years

    .

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    Irrigation studies of Command Area in Indian Territory Through Sapta

    Kosi High Dam Multipurpose project and Sun Kosi Storage-Cum-

    Diversion Scheme (Rs. 656.8 Lakh)

    Construction Supervision for Rehabilitation and Reconstruction of

    Regional Roads in Hadramout Governorate, Yemen (Rs. 338.0 Lakh)

    Design and Drawing of Barrage & other Components of Chandrabhaga

    Barrage Project, Maharashtra (Rs. 31.5 Lakh)

    DPR for the extension of the balance portion of the Main Ravi Canal

    from Basantpur to upstream of Ranjit Sagar Dam, Jammu & Kashmir(Rs.239 Lakh)

    Survey of 2x600 MW Suratgargh Super Thermal Power Project,

    Rajasthan (Rs.32 Lakh)

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    Third Party Quality Assurance and Quality Control Services for the

    Water Supply and Sewerage Project of HMWSSB, Andhra Pradesh (Rs.

    102 Lakh)

    Survey of Topographical Survey for Chhabra Thermal Power Station,

    Rajasthan (Rs. 12 Lakh)

    DPR for 50 Minor Irrigation Schemes in Tripura (Rs. 107 Lakh)

    Area Drainage study & Water Availability Studies for NCC Power

    Project in Srikakulam, Andhra Pradesh (Rs. 70 Lakh)

    DPR for Second Barrage on Gandak River (Gandak Project Phase-II)

    (Rs. 85 Lakh)

    Bagmati Irrigation Project (Phase-I) (Rs. 32 Lakh)

    9

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    Key Involvement

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    PROJECT NAME NAME OF CLIENT Value (In Rs. Lakh)

    Irrigation studies of Command

    Area in Indian Territory Through

    Sapta Kosi High Dam

    Multipurpose project and Sun Kosi

    Storage-Cum-Diversion Scheme

    DPR for 50 Minor IrrigationSchemes in Tripura

    DPR for Second barrage on

    Gandak River (Gandak Project

    Phase-II)

    Area Drainage study & Water

    Availability Studies for NCC Power

    Project in Srikakulam, Andhra

    Pradesh

    Joint Project Office, SKSKI,

    Biratnagar, Nepal656.85

    Public Works Department,

    Tripura

    Irrigation Department, Bihar

    107.50

    85.00

    Nagarjuna Construction

    Company, Hyderabad70.00

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    Project Details

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    SCOPE OF WORKReview of Previous Studies, Toposheets, ConceptualPlanning, Assessment of all the aspects ofhydrometeorology, existing network of irrigationsystem

    Review of existing cropping pattern

    Assessment & Finalisation of CCA

    Agronomical Studies & Irrigation Planning

    Topographical & Soil Survey and preparationof soil & land use maps

    Design of Structures in Canal network

    Irrigation studies of Command Area in Indian Territory Through SaptaKosi High Dam Multipurpose project and Sun Kosi Storage-Cum-

    Diversion Scheme

    Survey & Micro-Planning for 10% area oftotal CCA

    REPORTS TO BE SUBMITTEDInception Report

    Basic Macro planning Report

    Field Survey Report

    Micro Canalisation Report

    Detailed Project Report

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    Roles & Responsibilities Finalisation of GCA & CCA to be covered under the project

    Finalisation of Cropping Pattern

    Carried out Agronomical Studies

    Computation of NIR, GIR & Crop Water Demand as per Modified Penmansmethod for both BurhiGandak-Bagmati & Mahananda command

    Prepared Hydrology Chapter for the Inception Report

    Prepared Irrigation Planning & Agronomical StudiesChapters for BasicMacro planning Report

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    Assessment of GCA/CCA

    Total GCA = 10.53 L ha

    Total CCA = 7.72 L ha

    CCA under Burhi gandak Bagmati Basin = 5.24 L ha

    CCA under Mahananda Basin = 2.48 L ha

    Computation of 10 daily NIR (NET IRRIGATION REQUIREMENT)

    NIR =CWR + PL + PSRER

    CWR = ETo x Kc

    Monthly ETo values were computed by Modified Penmans Method, usingCROPWAT Software considering data ofMuzaffarpur & Darbhanga for BurhiGandak-Bagmati Basin and Purnea for Mahananda Basin

    Effective Rainfall values were coputed by USBR formula i.e.,

    if, rainfall > 125 mm; Effective rainfall = 125 + (0.1 * Avg.RF)

    rainfall < 125 mm; Effective rainfall = Avg. RF / [125* (125-

    0.2*avg RF)]

    Computation of GIR

    For ponded crops, project efficiency, Ep= 0.53

    For non-ponded crops, project efficiency, Ep= 0.41

    Using the above values of project efficiency, the 10-daily GIR has been computed

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    Sl. No. Crop Irrigation Intensity (%)

    Burhi Gandak-Bagmati Basin Mahananda Basin

    Kharif

    1 Paddy 1 40 402 Paddy II 30 25

    3 Maize 20 10

    4 Jute 15

    Sub Total 90 90

    Rabi

    5 Wheat 45 45

    6 Maize 8 8

    7 Oil Seeds 10 10

    8 Pulses 10 10

    9 Vegetables 7 7

    Sub Total 80 80

    Hot Weather

    10 Maize 20 15

    11 G.Gram 10 10

    12 Vegetables 3 3

    Sub Total 33 28

    Perennial

    13 Sugarcane 5 -

    Sub Total 5 -

    Grand Total 208 198

    Finalisation of Cropping pattern & Irrigation Intensities

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    Crop Calendar for Selected Crops in Burhi Gandak - Bagmati and Mahananda Basins

    SI. No. Name of Crop Crop Durationin Days

    Date of Sowing Date ofTransplantation

    Date of

    Harvest

    1 Kharif

    i) Paddy-I 132 Jun 21-30 Jul 01-20 Nov 1-10

    ii) Paddy-II 112 Jul 1 - 10 Jul 21 - 31 Oct 21 - 31

    iii) Maize 123 May 11-20 Sep 11-20

    iv) Jute 123 Jun 21-25 Oct 15 - 20

    2 Rabi

    i) Wheat 130 Nov 11-20 Mar 21-31

    ii) Maize 92 Nov 11-20 Feb 10-20

    iii) Oilseeds 128 Oct 11-20 Feb 16-25

    iv) Pulses 128 Oct 11-20 Feb 16-25

    v) Vegetables 110 Nov 11-20 Mar 1-10

    3 Hot Weather

    i) Maize 92 Mar 11-20 Jun 10-20

    ii) Green Gram 82 Mar 25-31 Jun 11-20

    iii) Vegetables 94 Feb 11-20 May 16-25

    4 Perennial

    i) Sugarcane 334 Feb 21-28 Jan 21-31

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    NET IRRIGATION REQUIREMENT(NIR)FOR MAIZE-KHARIF

    Duration 123 Days

    Date of Sowing 11-May

    Harvest Period Sep 11 to Sep 20

    Unit:mm

    Duration 10-daily Stage Days Eto/day Eto Kc CWR ER/day ER NIR

    10-D-

    NIR

    1 2 3 4 5 6 7 = 5*6 8 9=8*4 10 11

    May 11 to May 20 III

    10 6.30 63.00 0.60 37.80 1.63 16.30 21.50 21.50

    May 21 to May 31 III 11 6.30 69.30 0.60 41.58 1.63 17.93 23.65 23.65

    Jun 1 to Jun 10 I

    II

    10 5.26 52.60 0.80 42.08 4.36 43.60 0.00 0.00Jun 11 to Jun 20 II 10 5.26 52.60 0.80 42.08 4.36 43.60 0.00 0.00

    Jun 21 to Jun 30 III 10 5.26 52.60 0.80 42.08 4.36 43.60 0.00 0.00

    July 1 to July 4 I 4 4.20 16.80 0.80 13.44 5.02 20.08 0.000.00

    July 5 to July 10 I

    III

    6 4.20 25.20 1.00 25.20 5.02 30.12 0.00

    July 11 to July 20 II 10 4.20 42.00 1.00 42.00 5.02 50.20 0.00 0.00

    July 21 to July 31 III 11 4.20 46.20 1.00 46.20 5.02 55.22 0.00 0.00

    Aug 1 to Aug 8 I 8 4.05 32.40 1.00 32.40 5.01 40.08 0.000.00

    Aug 9 to Aug 10 I

    IV

    2 4.05 8.10 0.55 4.46 5.01 10.02 0.00

    Aug 11 to Aug 20 II 10 4.05 40.50 0.55 22.28 5.01 50.10 0.00 0.00

    Aug 21 to Aug 31 III 11 4.05 44.55 0.55 24.50 5.01 55.11 0.00 0.00

    Sept 1 to Sept 10 I 10 No Irrigation, dry out period

    Crop Duration 123 45.15 45.15

    Sept 11 to Sept 20 Harvest period

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    Monthly Water Demand for Burhi Gandak - Bagmati& Mahananda Basins

    Month

    Burhi Gandak -

    Bagmati Mahananda

    CCA= 5.24 lac ha CCA = 2.48 lac ha

    Irri. Int. = 208 % Irri. Int.= 198 %

    MCM cumec MCM cumec

    June 68.33 26.36 21.57 8.32

    July 1037.01 387.18 435.82 162.72

    August 275.00 102.67 143.27 53.49

    September 245.84 94.84 111.96 43.19

    October 349.34 130.43 131.62 49.14

    November 267.63 103.25 141.10 54.44

    December 456.38 170.39 237.18 88.55

    January 415.63 155.18 213.61 79.75

    February 319.97 132.26 168.34 69.58

    March 235.51 87.93 86.26 32.21

    April 617.39 238.19 218.15 84.16

    May 751.84 280.70 202.42 75.57

    Total 5039.86 - 2111.30 -

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    Area Drainage study & WaterAvailability Studies for NCC PowerProject in Sompeta, Andhra Pradesh

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    Proposed 2640 MW Vamsadhara Thermal Power Project at Sompeta

    Plant site

    (1890

    acre)

    12

    3

    4

    1. Uncultivable waste land with grass 2. Agricultural land

    3. Mixed Plantation 4. Coastal highlands

    Image date:13Dec.2007

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    Project Understanding

    Plant site is located east of Mahendratanaya river.

    Plant site is spread over 1890 acre.

    Presently, there are no existing drainage scheme in the

    area, resulting in letting out rainfall-excess from the sub-catchments into the site.

    A well-designed storm water drainage system is

    proposed to be in place inside & outside the plant area

    as part of integrated system of area improvement

    measures. Two Drains D1 & D2 are proposed at plant site for

    carrying out the discharge from the catchment.

    24

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    DRAINAGE MAP OF PROJECT AREA

    Baruva

    river

    catchment

    C3

    C5

    C1

    C2

    C4

    A

    B

    D2

    D1

    DRAINAGE MAP OF PROJECT AREA

    N

    Project Details

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    Roles & Responsibilities Design Flood Computation

    Total Catchment Area = 121.50 sq. km.

    Catchment divided into 6 Sub Catchments

    Design Flood was computed for each Sub Catchment by Unit

    Hydrograph Method

    Computation of 100 year Return Period Flood at theinlet of the Proposed Drains

    Flood at inlet of the Drains D1 & D2 was computed with

    Muskingham Channel Routing Method

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    Catchment Discharge Corresponding to 25 year, 50 year, 100 YearFlood

    Sl. No. Sub-Catchment C.A inSq. km Discharges in cumec

    Q25 Q50 Q100

    a. C1 1.96 24.71 27.50 37.83

    b. C2 2.71 16.47 18.42 24.18

    c. C3 21.79 68.34 76.83 86.37

    d. Barua 49.49 193.70 218.10 286.79

    e. C4 4.77 28.54 31.97 41.49

    f. C51 7.38 43.96 49.27 54.60

    g.C5 (including self catchment ofplant area) 40.79 235.20 263.99 292.97

    h.C5 (excluding self catchment ofplant area) 29.82 171.96 192.98 214.13

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    Time

    (hrs) Baruva

    Baruva(Routed)

    0.3*C3

    0.3*C3(Routed)

    Baruva (Rout)+

    0.3*C3(Routed)

    0.2*(Baruva+

    0.3*C3(Rout)

    )

    0.2

    Baruva

    (Routed)

    0.06 C3

    (Routed) C1

    D1=C1+0.2*

    (Baruva+0.3

    *C3)

    k= 1,

    x=0.05

    k= 2,

    x=0.05

    0 3.45 3.45 0.70 0.70 4.15 0.83 0.69 0.14 0.74 1.57

    1 15.49 6.89 0.75 0.71 7.60 1.52 1.38 0.14

    37.8

    3 39.35

    2 112.75 40.82 0.90 0.74 41.57 8.31 8.16 0.15 9.41 17.73

    3 228.56 125.29 6.78 1.58 126.87 25.37 25.06 0.32 1.43 26.81

    4 286.79 215.69 13.40 4.70 220.40 44.08 43.14 0.94 0.74 44.82

    5 237.74 252.47 21.66 9.56 262.03 52.41 50.49 1.91 0.74 53.15

    6 171.19 222.93 25.91 15.38 238.31 47.66 44.59 3.08 0.74 48.40

    7 127.54 173.50 23.37 19.63 193.13 38.63 34.70 3.93 0.74 39.37

    8 96.14 131.70 19.42 20.74 152.44 30.49 26.34 4.15 0.74 31.23

    9 70.66 99.02 15.96 19.71 118.73 23.75 19.80 3.94 0.74 24.49

    10 52.58 73.60 13.17 17.72 91.31 18.26 14.72 3.54 0.74 19.00

    11 36.22 53.91 10.68 15.42 69.33 13.87 10.78 3.08 0.74 14.61

    12 23.68 37.69 8.33 13.05 50.74 10.15 7.54 2.61 0.74 10.89

    13 13.47 24.77 6.26 10.73 35.50 7.10 4.95 2.15 0.74 7.84

    14 6.50 14.71 4.73 8.59 23.29 4.66 2.94 1.72 0.74 5.40

    15 3.57 8.01 3.34 6.73 14.74 2.95 1.60 1.35 0.74 3.69

    16 3.45 4.80 2.10 5.09 9.90 1.98 0.96 1.02 0.74 2.72

    17 3.45 3.84 1.09 3.66 7.50 1.50 0.77 0.73 0.74 2.24

    Table-3100 year Return Period Flood for Drain D1 By Muskingham Routing

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    100 Year Return Period Flood for Drain 1

    0

    10

    20

    30

    40

    50

    60

    0 10 20 30 40 50 60

    Time (hr)

    Discharge(cumec)

    0.2 Baruva(Routed)

    0.06 C3(Routed)

    C1

    D1=C1+0.2*(Baruva+0.3*C3)

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    DPR for Second Barrage on Gandak

    River (Gandak Project Phase-II)

    P j D il

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    Project Details

    Augmentation

    of water

    availability inthe existing

    canal system

    througb the

    transfer of

    water from

    Gandak by

    constructing aBarrage near

    Areraj

    Project Understanding Need

    TMC & SMC

    are water

    deficient intheir

    downstream

    reaches It is

    therefore

    proposed a

    second barrage

    & cpnstructlink canals to

    feed the

    existing canal

    network.

    Scope of Work

    Review and assessment of CCA ,

    existing cropping pattern

    Assessment of water demand

    Assessment of water

    availability at barrage site

    Water Balance Studies

    Computation of Crop Water

    Requirement

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    Roles & Responsibilities Hydrological Studies

    Dumariaghat G&D site is 17 km d/s of the proposed Gobindganj site.

    It was not possible to obtain requisite hyd-met data base required forestimating design flood by hyd-met approach as a major part of the rivercatchment lies in Nepal.

    Flood frequency approach was taken into consideration.

    G& D data (1974-1994) of Dumariaghat has been used for estimation ofDesign Flood.

    The observed annual flood discharge was not instant peak flows.

    G & D curve was drawn b/w annual daily peak discharge at Dumariaghatand corresponding gauge of each year

    Thus instantaneous annual peak series has been generated. The instantaneous flood peak series is subjected to Normal, Log-Normal,

    Log Pearson & Gumbels frequency distribution.

    Transposing these flood values at the project site, using the relation Q=C(A)^3/4 the flood at Barrage site Gobindganj has been computed.

    R l & R ibiliti

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    100-Year Return Period Flood at Dumaria Ghat

    (Unit: Cumec)

    Distribution 100 Year Flood Upper Limit of Flood

    Normal 10803 13318

    Log Normal 11398 16120

    Pearson 11514 16371

    Gumbel 12405 17531

    100-Year Return Period Flood at Gobindganj

    (Unit: Cumec)

    Distribution 100 Year Flood Upper Limit of Flood

    Normal 10725 13209

    Log Normal 11305 15988

    Pearson 11420 16237

    Gumbel 12303 23056

    Roles & Responsibilities

    Roles & Responsibilities

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    Computation of HFL of River Gandak at Gobindganj

    Observed, consistent and concurrent G&D data at Dumariaghat has been transposed to

    Gobindganj as explained below: Computation of Gauge at Gobindganj :

    slope = 0.23m/km (Reference: Report of 2nd Bihar State Irrigation

    Commission 1994, Vol:V)

    River length from Gobindganj to Dumariaghat= 17.5 km,

    Total elevation increase b/w Gobindganj and Dumariaghat considered =4.02 m

    Computation of Discharge :

    The discharge at Gobindganj has been computed using following equation:

    Development of G& D curve at Gobindganj

    34A

    2= Q2 1 A

    1

    Q

    The equation of G&D curve is

    y = A*xbWhere:

    Y = Discharge

    x = (G-G0)

    G = Gauge corresponding to y

    G0 = Gauge corresponding to 0 discharge computed as 61.5m using the best-fit Technique

    Roles & Responsibilities

    Roles & Responsibilities

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    Development of G & D Curve at Gobindganj

    Gauge at Gobindganj

    (G)

    Gauge at '0' Dis.

    (G0)

    Discharge at

    Gobindganj

    G-G0 Log (G-G0)

    Log

    (Q)

    m m cumec m

    65.62 61.50 3531.52 4.12 0.615 3.548

    65.78 61.50 3729.92 4.28 0.631 3.572

    65.8 61.50 3749.76 4.30 0.633 3.57466.1 61.50 5417.25 4.60 0.663 3.734

    66.26 61.50 5952.00 4.76 0.678 3.775

    66.33 61.50 6083.57 4.83 0.684 3.784

    66.64 61.50 8134.40 5.14 0.711 3.910

    66.7 61.50 8481.60 5.20 0.716 3.92866.82 61.50 8928.00 5.32 0.726 3.951

    66.89 61.50 9800.96 5.39 0.732 3.991

    66.96 61.50 9920.00 5.46 0.737 3.997

    67.36 61.50 9949.76 5.86 0.768 3.998

    68.1 61.50 11188.46 6.60 0.820 4.049

    Roles & Responsibilities

    Roles & Responsibilities

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    Log (G-G0)

    G&D Curve for River Gandak at Gobindganj

    Computed value of HFL corresponding to design discharge of 24100 cumec = 61.90 m

    Roles & Responsibilities

    LogQ

    Roles & Responsibilities

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    Roles & Responsibilities

    Irrigation Planning

    NIR, GIR & Crop water demand has been computed for Kharif,

    Rabi & Hot Weather crops

    Total area under Tirhut Main Canal (TMC) below RD 452.5,

    for computing water demend = 2.73 L ha Total area under Saran Main Canal (TMC) below RD 170.5, for

    computing water demend = 1.00 L ha

    The computed Peak Water Demands for ;

    TMC (CCA= 2.73 L ha) = 172.82 cumec

    SMC (CCA= 1.00 L ha) = 54.81 cumec

    Abstract of Total 10-daily Crop Water Requirement for TMC (below RD 452 50)

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    Abstract of Total 10-daily Crop Water Requirement for TMC (below RD 452.50)

    CCA 273000 ha

    Kharif 85%

    Rabi 95%

    Hot

    Weather 55%

    Perennial 5%Intensity of Irrigation 240%

    Crop

    Kharif Rabi HW Perennial Total Demand

    P1 P2 P3 P4 Maize Wheat Pulses Oilseeds Potato Veg. Gr. Gram Veg. Maize S'cane (Mcum.) (cumec.)

    Area (%) 22% 19% 16% 12% 16% 50% 15% 15% 7% 8% 25% 5% 25% 5% 240%

    Area (ha) 60060 51870 43680 32760 43680 136500 40950 40950 19110 21840 68250 13650 68250 13650 655200

    Jun

    I 0.1 11.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 95.5 0.0 106.53 123.29

    II 152.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 152.65 176.68

    III 42.3 0.0 9.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 51.48 59.58

    Jul

    I 23.4 120.0 0.0 6.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 149.85 173.44

    II 23.4 20.2 109.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 153.11 177.21

    III 25.7 22.2 18.7 82.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 149.32 172.82

    Aug

    I 24.2 20.9 17.6 12.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 75.38 87.24

    II 24.2 20.9 17.6 13.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 75.96 87.92

    III 26.6 23.0 19.4 13.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 82.86 95.90

    Sep

    I 23.8 20.5 17.3 12.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 74.48 86.20

    II 18.8 20.5 16.4 12.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 67.99 78.70

    III 15.8 6.2 12.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 34.67 40.12

    Oct

    I 0.0 15.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 5.1 20.89 24.17

    II 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.9 0.0 0.0 0.0 0.0 0.0 5.1 6.98 8.08

    III 0.0 0.0 0.0 0.0 0.0 0.0 0.7 3.0 0.0 0.0 0.0 0.0 0.0 3.6 7.30 8.45

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    DPR for 50 Minor Irrigation Schemes

    in Tripura

    Project Details

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    Collection of

    Hydro-

    meteorological

    data

    Geotechnical

    Investigation

    Hydrological

    study

    Design of

    StructuresCost EstimateIrrigation Planning

    Steps for Preparation of DPR

    Preparation of DPR

    Project Details

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    Roles & ResponsibilitiesHydrological Studies Design Flood Computation:

    No observed concurrent short-duration rainfall and runoffflood data is available for the proposed project site.

    Flood Model has been developed based on the methodology

    contained therefore the in the Publication No RBF-16,published by Research Design and Standard Organization(RDSO), Ministry of Railways.

    The methodology in the publication provides a rationalformula for design flood for catchments less than 25 sq.km.

    The studies in the publication are based on special catchmentcharacteristics, time distribution and areal distribution ofrainfall for very small catchments and modified runoffparameters.

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    The methodology has been finalized and approved for usefor micro catchments by the Flood Estimation, Planning andCoordination Committee (FEPCC).

    The Flood Model is based on well known Rational Formula

    with suggested improvements in the values of runoffcoefficient (C) and intensity of rainfall (I) as indicatedbelow:

    Q = 0.278*C*I*A

    C = 0.332*(R*F)^0.2I = RF/TcTc = (L^3/H)^0.345

    L = Length of the longest stream (km)H = Height of the farthest point above the

    proposed project along the river

    43

    Roles & Responsibilities

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    Computation of 75% dependable flow:

    Availability of Rainfall Data: IMD maintains 12 Raingauge

    Stations in Tripura. Data available from (1975-2000)

    Availability of Runoff Data: CWC maintains 12 G&D Sites in

    Tripura

    75% dependable flow for the each project site was computed by

    developing Rainfall Runoff model for corresponding G&D site

    Computation of Crop Water Demand:

    Net Irrigation Requirement/per crop and Total Crop WaterDemand was computed with Modified Penmans Method

    recommended by FAO.

    Roles & Responsibilities

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    Proposed cropping pattern and irrigation intensities adopted

    in present study

    Sl

    No.

    Crop Irrigation Intensity (%)

    w.r.t (CCA)

    1 KharifPaddy (Aman HYV)

    75

    Sub Total 75

    2. Rabi

    Paddy (Boro HYV)

    Wheat

    Mustard

    Potato

    Vegetables

    2015

    5

    15

    10

    Sub Total 65

    3 Hot weatherPaddy (Aush HYV)

    Vegetables

    7010

    Sub Total 80

    Total 220

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    Crop Calendar for Proposed Crops

    Name of

    crop

    Crop

    duration

    Date of

    sowing

    Date of

    transplantation

    Date of harvest

    1. Kharif

    Paddy 125 June 23-30 July 15-31 Oct 01-25

    2. Rabi

    Paddy 137 Dec 15-31 Jan 13-31 Apr 01-30

    Wheat 101 Nov 7-30 Mar 01-15

    Mustard 90 Oct 10-31 Jan 01-07

    Potato 113 Nov 15-30 Mar 01-07

    Vegetables 102 Oct 16-31 Jan 01-25

    3. Hot

    Weather

    Paddy 118 Apr 20-30 May 12-31 Aug 01-15

    Vegetables 80 Mar 22-31 Jun 01-09

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    Role in Business DevelopmentWork

    Actively involved in preparation of Proposals & EOIs for procuring new

    Business Opportunities in the field of Water Resources

    List of Selected Proposals in which thoroughly involved;

    S. No. Project Name Value

    (In Rs. Lakh)

    1 DPR for the extension of the balance portion of the

    Main Ravi Canal from Basantpur to upstream of Ranjit

    Sagar Dam, Jammu & Kashmir

    234.00

    2 Construction Supervision for Rehabilitation and

    Reconstruction of Regional Roads in Hadramout

    Governorate, Yemen

    301.00

    3 Water Resources Planning for Rajasthan State 1500.00

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