stormwater bubble up pit d4 - waikato · stormwater bubble up pit outlet as drawing d6.8 double...

300

300

300

A

in cast iron frame

Cast iron swing grate

K&C

vehicle cutdown

Chamber location in

Gutter

House

Stormwater Pipe

Flow

Boundary

Downpipe

Roadway

500

GL (Driveway)

Min. 1200 deep

Chamber for 100Ø outlet

800mm x 300 ID Concrete

450 Min.

700 Min.

Min.

300

K&C

Grass Berm

Footpath

Roadway

House

Stormwater pipe

REGIONAL INFRASTRUCTURE TECHNICAL SPECIFICATION Version: AUGUST 2016Version: AUGUST 2016

CHAMBER PLANSECTION A

SITE PLAN

LONGITUDINAL SECTION

inlet

Nominal 90 mm

Vehicle Crossing

400mm or 600mm deep

Available chamber depths

300x300 ID concrete chamber.

D4.1

uPVC SN16 in berm

STORMWATER BUBBLE UP PIT

outlet as Drawing D6.8

Double catchpit for 225Ø

Drawing D6.9 for 150Ø outlet.

Single catchpit generally as

Road Reserve

Boundary

Kerb and channel

300

20 MPa Concrete

min.

25

Kerb and Channel

Existing

Mountable Option

Boundary

with 'kerb adaptor'

Sweated spigot

with face of kerb

Trim adaptor to make flush

or approved similar

SureCast Metals HCC Kerb Adaptor

100 Ø SN16 uPVC

1.0m

0.3m to

To Fit

20MPa concrete

Cutout - mortar infill

Kerb Outlet

min.

1000

Vehicle Crossing

Depressed Kerb at

Channel Invert

drainage system

Private

if present

Footpath

to channel invert

pipe kerb connection

Cast galvanised steel

with epoxy mortar

Reinstate kerb

Sealed end cap

at Grade 1 in 100

100mm SN16 uPVC pipe

NOTE: DRAWINGS D3.4.2 AND D4.2 HAVE BEEN COMBINED

Version: AUGUST 2016REGIONAL INFRASTRUCTURE TECHNICAL SPECIFICATION

KERB CONNECTION D4.2

KERB ENTRY

VERTICAL KERB


35 min.

Water Level

cle

ar of norm

al flo

w

Base of outlet

DN100 SN16 uPVC

Glued or screwed

Factory "T"

REGIONAL INFRASTRUCTURE TECHNICAL SPECIFICATION Version: AUGUST 2016

D4.3

(preferably rip rap, rock or concrete)

Hardening of bank required anti-scour material

uPVC

DN100 SN16

100mm spacings

DN20 holes at

DN 100 STORMWATER OUTLET

50mm Min. 75mm Max.

Gap for flow under fence

H5 200 X 50

100

mm

600

mm Min.

1500mm MIN.

Boundary

100

mm

Note 1

@ 2.4m Spacing (Max.)

Version: AUGUST 2016REGIONAL INFRASTRUCTURE TECHNICAL SPECIFICATION

D4.4- PRIVATE PROPERTY

STORMWATER SECONDARY FLOW PATH TREATMENT

NOTES:

For 10 year ARI flow velocities:

>1.5 m/s Hardening is required

1.0 - 1.5 m/s reinforcing is required

< 1.0 m/s grass cover is sufficient1.

50mm

K&

C

Gutter

House

Stormwater Pipe

Downpipe

sealed surface

Grate inlet for

House

overland flow path

To connection or

Porous well liner

Porous well liner

Porous well liner

Downpipe

Downpipe


D4.5PRIVATE PROPERTY

GROUNDWATER RECHARGING DEVICES

SITE PLAN


Stormwater connection

Council Storm

water

with overflow

Soakage Catchpit

Footpath

2500 radius (approx.)

Invert

Footpath dish channel in berm.

200 200

700 Min.

500 Min.

200

Footpath

1500 (Typical)

In-situ concrete base

225

150

In-situ concrete apron

225Ø RCRRJ - class 4 pipe

1500 (

Typical)

300

475

1500 400 1500


D4.6FOOTPATH BERM CATCHPIT DETAILS

SECTION A

A

PLAN

RCRRJ pipe. See Note 1.

Cast iron grate to fit socket of 225Ø

grade (Min.)

Type HS2 bedding 1:100

150Ø uPVC pipe on NOTES:

2.

1.

minimum 28 day strength of 20MPa.

All in-situ concrete shall have a

of dish channel.

iron grate set 25mm below invert

Top of 225Ø RCRRJ pipe and cast

Concrete haunching

480 100

230

Carriageway

In-situ concrete

concrete sump

675 x 450 precast

Berm/Footpath

600 Min. 100 Min.

90 Min.


CATCHPIT BACK ENTRY DETAILS D4.7

DETAIL A

BACK ENTRY CATCHPIT

ELEVATION

See Detail A

match channel profile

Catchpit grate and frame angled to

channel

adjacent line of both lip and kerb of

10mm Plate across Catchpit barrel

DETAIL B - PRECAST KERB COMPONENT

component (see Detail B)

Precast back-entry kerb

C

SECTION C

shaped to direct flow

In-situ concrete inside face

kerb component

Precast back entry

(Perpendicular slots), for cycle routes

Alternative cast iron grate configuration

KERB

CHANNEL

500Steel plate

FALL

central over pipe)

(i.e. back of grate

300 to ID

WATER LEVEL

pipe outlet

1800

225

150

150450

700 Min.

400 Cast insitu concrete base


D4.8DOUBLE SUMP CATCHPIT DESIGN

PLAN

SECTION

upstream pit only

component with no bar on

Precast back-entry kerb

See Drawing D4.10

fish (Giant Kokopu)

Degreased aluminium

(on upstream pit)

with no back-entry cavity

Precast kerb component

Min.

600

precast unit

or 675 X 450

600 Ø Class 2

RC pipe

Min. 300 Ø

See Drawing D6.9

Floatables baffle

See Drawing D6.7

Construction details

NOTES:

For details see Drawing D6.7

strength of 20MPa

All in-situ concrete shall have a minimum 28 day

epoxy or approved equivalent.

Epoxy product to be "ramset epcon C6" 2 pot

Cast iron grate with parallel slots shown in drawing.

4.

3.

2.

1.

B

B

SCALE 1:25

A A

Steel Sheet

1.6mm Stainless

(perpendicular slots) for cycle routes

Alternative cast iron grate configuration

225mm Ø

Minimum outlet

Top of Kerb

Carriageway

1800

600 min

150

Carriageway

Channel

Kerb

500

225

150

600 Min.

150


D4.9VERTICAL ENTRY CATCHPIT

50

600

normal grade

Grate set flush with

precast unit

675 x 450

600Ø Class 2 or

and Frame

Catchpit Sump Grate

rod alignment

Holes to match

See Drawing D4.10

clean prior to fixing fish icon.

(Giant Kokopu) Stiff brush

Degreased Aluminium Fish

SECTION A-A

Not to Scale

FLOATABLES BAFFLE DETAIL

SCALE 1:25

PLAN

epoxied into sump wall

nut and spring washer,

6mm galvanised rods,

to chamber wall with

Floatables baffle fixed

soffit of outlet

top to be level with

Floatables baffle

SECTION B-B

SCALE 1:25

NOTES:

3.

2.

1.

strength of 20MPa

All in-situ concrete shall have a minimum 28 day

epoxy or approved equivalent.

Epoxy product to be "Ramset Epcon C6" 2 pot

Cast iron grate with parallel slots shown in drawing.


D4.10FISH SYMBOLS FOR CATCHPITS

GIANT KOKOPU

70

- 8

0m

m

220 mm

SOAK AWAY

BUBBLE UP

75

mm

75

mm

250mm

50

mm

50

mm

BLUE NZ NATIVE KOKOPU

NOTES:

Plates to be orientated for reading from road side.

Giant Kokopu Plate to be cast in aluminium - from catchpit suppliers.

5.

4.

3.

2.

1.

A

Carraige

way

Edge of seal

Footp

ath

Berm

0.25mm polypropylene liner

Subsoil drain

Carriageway

Edge of sealFootpath

Min. 900 Min. 600 Min. 900

If mownIf planted

3

1 15

Topsoil

Filter cloth

50 min.

50 min.

Section 4.2.24

Plant following

Section 4.2.18

per m where required in accordance with

min. 100mm PVC with 8 x 10mmØ holes

Slope dependent gravel underdrain with

50 min.

pipe network

Connection to

8 x 10mm Ø holes per meter

with min. 100mm PVC with

Optional gravel underdrain


D4.11SWALE PLAN AND SECTION

PLAN

SECTION A

Min. 0.5

% Gra

de

Refer Drawing D.3.3.3

Edge restraint

liner for detention only applications

Optional 0.25mm polypropylene

300

with scruffy dome

DN1050mm Manhole

Refer Drawing D3.3.3

Edge restraint with haunching

Min. 900 Min. 600 Min. 900

NOTES:

4.

3.

2.

1.

Preferred water main location is at edge of footpath.

Private sites on same side of road as swale shall discharge via pipe to invert of swale.

Private sites shall have on-site retention.

For single sloping carriageway, private discharge on opposite side of road shall be kerb discharge.

TopsoilFootpath Planted face Carriageway

Subsoil drain

0.25mm polypropylene liner

Filter cloth

Planted face

Driveway culvert

(timber or concrete)

Wheel stop

concrete specication.

Refer to D3.3.5 for

2

1

Edge restraint

Carriageway

Min. 900Min. 600Min. 900Footpath

Min. 3000

(timber or concrete)

Wheel stop

detention only applications

polypropylene liner for

Optional 0.25mm

Min. 100mm clearance

SN16 PVC culvert

Driveway 225mmØ

in accordance with section 4.2.18

10mmØ holes per m where required

with min. 100mm PVC with 8x

Slope dependent gravel underdrain

300


D4.12SWALE DRIVEWAY CROSSING DETAIL

PLAN

ELEVATION A

ELEVATION A

100

A

Footpath

Vegetation

Carriageway Footpath

100mmØ

point minimum

Capped flushing

invert of channel

Standard catchpit at

Vertical kerb & channel

protection during construction

Temporary timber barrier for

invert of Channel

Standard catchpit at

champher at each end

to lip of channel with 45°

Vertical kerb champhered

Rip rap armour

4.14

PLAN

UNDERDRAIN LONG SECTION

B

B

Refer to Drawing D3.3.3

channel surround

Vertical kerb and

Parking Bays

Parking Bays

channel profile

to raised kerb and sloped

Champhered kerb and channel

Not to Scale

Refer Detail B Drawing 4.14

Raised kerb with sloped channel

Capped flushing point

Perforated underdrain

Perforated underdrain

optional tree

In-situ soil with

REGIONAL INFRASTRUCTURE TECHNICAL SPECIFICATION

D4.13

Version: AUGUST 2016

UNDERDRAIN LONG SECTION

RAIN GARDEN PLAN AND

85

75

125

200

425

Standard kerb & channel

Carriageway

Rip rap armourFootpath

150mm

Rip rap armourFootpath

150mm

Concrete sides (Precast)

Carraigeway

Standard kerb & channel

on media surface

Non floating mulchRefer detail

Sloped kerb

refer to HCC guideline

media. For specification

Min. 500mm deep

drainage layer

rock 16mm to 40mm

Min. 300mm washed drain

sand transition layer

Cleaned well graded

underdrain

100mm PVC

Perforateddetention only applications

polypropylene liner for

Optional 0.25mm

polypropylene liner

Subsoil drain and 0.25mm

transition layer

well graded sand

Min. 100mm cleaned

on media surface

Non floating mulch

HCC guideline

For specification refer to

Min. 500mm deep media.

holes per m

with 8 x 10mm Ø

PVC underdrain

Perforated 100mm

detention only applications

polypropelene liner for

Optional 0.25mm

drainage layer

rock 16mm to 40mm

Min. 300mm washed drain

polypropylene liner

Subsoil drain and 0.25mm

side

Precast concrete

Refer detail

Sloped kerb


D4.14SECTIONS AND KERB DETAIL

RAIN GARDEN CROSS

50 Min.

50 Min.

A

Not to Scale

CROSS SECTION - VERTICAL SIDES

A

Not to Scale

CROSS SECTION - SLOPED SIDES

Not to Scale

DETAIL B - KERB WITH SLOPED CHANNEL

A

-

Footpath

High flow bypass

Road centre lin

e

Kerb a

nd c

hannel

Kerb a

nd c

hannel

Pro

pert

y b

oundary

Traffic lanesFront bermFootpathService berm

Manhole

boundary

Pro

pert

y

cell with filter cloth

Underground storage

Manhole

catchpit filter

Catchpits with approved

only applications

required for soakage

for detention. Not

outlet with orifice sized

Optional min. 100mØ

Hig

h flo

w b

ypass

ACROSS SECTIONNot to Scale

PLAN

detention using ITS

Sized for soakage or

with filter cloth.

Underground storage


D4.15

Version: AUGUST 2016PLAN AND SECTION

WITH APPROVED CATCHPIT FILTER

UNDERGROUND STORAGE

Manhole

High flow bypass

Manhole

catc

hpit filter

Catc

hpit with a

ppro

ved

pipe to underground storage

Bypass invert set at soffit of

or detention using ITS.

filter cloth. Sized for soakage

Underground storage cell with

applications.

Not required for soakage only

with orifice sized for detention.

Optional minimum 100mmØ outlet


D4.16CATCHPIT FILTER LONG SECTION

UNDERGROUND STORAGE WITH APPROVED

conditions are suitable for soakage.

conditions are suitable. Consult a Geotechnical Engineer to determine if ground

Underground storage can provide soakage and detention requirement if ground

Note:


D4.17LONG SECTION

UNDERGROUND STORAGE WITH GROSS POLLUTANT TRAP

conditions are suitable for soakage.

conditions are suitable. Consult a Geotechnical Engineer to determine if ground

Underground storage can provide soakage and detention requirement if ground

Note:

Manhole

trap

Gro

ss p

olluta

nt

Catc

hpit

High flow bypass

applications.

Not required for soakage only

with orifice sized for detention.

Optional minimum 100mmØ outlet

or detention using ITS.

filter cloth. Sized for soakage

Underground storage cell with

pipe to underground storage

Bypass invert set at soffit of

Manhole

D4.18STORMWATER CONNECTIONS LAYOUT


Council OwnershipKEY: Private Ownership

soakage trench

soakhole or

Privately owned

Property boundaries

Soakage

SINGLE PROPERTY SINGLE PROPERTY

Service Pipe

Property boundaries

at boundary

Point of discharge

Stormwater Main

measure (WEM)

SINGLE PROPERTY

Service Pipe

Property boundaries

stub. See D4.5

Point of discharge

MainStormwater

measure (WEM)

SUBDIVISION

boundaries

the serviced

discharge at

Point of

Point of discharge at the

buildings

run underneath

as services cannot

de-commisioned,

Old service pipe

pipe

New service

Stormwater Main

dwelling

for new Lot/

Retain original

House

New

House

WEM

WEM

Accessway

5+ CUSTOMERS

boundaries

Point of discharge at

Stormwater Main

of blockages

Manhole required for

Single Lot

5+ CUSTOMERS

anoth

er

manhole

is r

equir

ed

If g

reate

r th

an 1

20m

, th

en

Stormwater Main

WEM

catchpit

Stormwater

at boundary

discharge

Point of

soakage trench if possible

Privately owned soakhole or

31

1050Ø Chimney

Slab

Chamber

Manhole

450

450

1800 Length m

ax

23

450

250

150

Precast flanged base

150

(Max)600

(Max)600

80

300

300

Manhole top slab


DETAILS DN1350 AND OVER MANHOLES

Manhole top slab

31

450

DROP MANHOLES

top slabManhole

top slab

Manhole


DN1050 - DN1350 MANHOLES

DETAILS DN1050 & DN1200 MANHOLES

ground.

length 300mm into undisturbed

100deep with 4/12 bars min.

Concrete slab 450wide x

NOTES:

90° PVC junction

jointing

BM100

150

do not sponge

trowel finish,

Smooth steel

above sewer)

(invert minimum 100mm

50mm channel in benching

Internal PVC drop

pattern (detail required)

Cover to be HCC standard

extension 300mm

Maximum neck

section

pre-cast

2.4m

to be

First lift

THROUGH MANHOLE

TYPICAL PLAN CURVE


Ladder rung


(Min)

225

Radius minimum 2.5 x Pipe Ømm

D4.21

Footpath +10mm, -0mm

Berm +5mm, -5mm

Pavemant +0mm, -5mmGround level tolerances:

and locking bolts and pre-cast slab detail.

See standard detail for cast iron lid with rim to fit recess

Stormwater manholes may use concrete.

Wastewater manholes to use ceramic for channelling.

Diameters of precast manhole pipes are nominal only.

4.

3.

2.

1.

with ground slope.

Cover slope to conform

Chamber Slab

Manhole

Chimney

1050Ø

1800 Pip

e length M

ax.

150

230

(Min.)

300

(Min.)

400

for 1050Ø

Manhole top slab

Refer NOTE 5.

Step Recess (Max.)

600 1800 Pip

e length M

ax.

300

350

600

250

1800 Pip

e length M

ax.

150

230

top slab

Manhole

top slab

Manhole

(Min.)

175

(Max.)

600

MANHOLES GREATER THAN DN1350

TYPICAL DIMENSIONS FOR


NOTES:

Approved steps as per Section 8 Acceptable Materials.


Berm +5mm, -5mm


and locking bolts and pre-cast slab detail.

See standard detail for cast iron lid with rim to fit recess

Diameters of precast manhole pipes are nominal only.

onto top slab is 300mm.

Maximum depth for frame and cover adjustment rings

5.

4.

3.

2.

1.


conform with general ground slope.

Manhole cast iron cover slope to

D4.22

1

1

shallow chamber

Top slab for DN750

75 75

872

DN750

DN750 INTERNAL SHALLOW CHAMBER

TOP SLAB FOR DN750 SHALLOW CHAMBER

and where depth of invert is less than 1000mm

To be used only on pipes of DN100 to DN300


SHALLOW MANHOLE/CHAMBER

585Ø (Min.)

(Min.)

250

reinforcing bars

2/12Ø Circular 320 lap

1000 (

Max.)

cover with rim to fit recess

Standard HCC pattern cast iron

No steps


D4.23


Berm +5mm, -5mm


NOTES:

1.

(refer to Note 1)

Ground level tolerances

LATERAL CONNECTION

Plain bend

Road B

dy

Boundary

Ground level

Ground level

'Y' junction

BoundaryFlow

Trench

Trench

Main

Main

uPVC Pipes

Min. fall 1 in 60 (1.667%)

100mm Ø lateral

Green = Stormwater

Red = Wastewater

Seal end with painted screw on end cap

Green = Stormwater

Red = Wastewater


Green = Stormwater

Red = Wastewater


uPVC Pipes

the Lot the connection serves.

fitting when main is located within

(1) Public pipe to end of junction

Min. fall 1 in 60 (1.667%)

100mm Ø lateral

uPVC Pipes


RAMP RISER CONNECTION WITH A DEPTH TO INVERT GREATER THAN 2500mm - SECTION

CL

CL

STANDARD CONNECTION WITH A DEPTH TO INVERT LESS THAN 2500mm - SECTION

Lot the connection serves.

when main is located outside the

(2) Public pipe to road boundary

POINT OF DISCHARGE: PUBLIC AND PRIVATE INFRASTRUCTURE

Main

POINT

*ACCESS

access points.

Building Code for the allowable types of

* Rodding point shown. Refer New Zealand

POINT

*ACCESS

access points.

Building Code for the allowable types of

* Rodding point shown. Refer New Zealand

1.0m Max.

300mm Min.

1.0m Max.

300mm Min.

Length varies

2500 m

ax

Gre

ater th

an 2

500

Length varies


D4.24

green (Stormwater)

Top 100mm of post painted red (Wastewater) or

from connection to 300mm above ground level.

50 x 50 wooden marker and marker tape to extend

London junction

green (Stormwater)

Top 100mm of post painted red (Wastewater) or

from connection to 300mm above ground level.

50 x 50 wooden marker and marker tape to extend

London junction

Bedding

300

D/2

150

150

Drainag

e Pipe

Trench side

150

150150

Weak Con

crete

CROSS SECTION

LONG SECTION


10mpa concrete

against undisturbed soil, using

at 5.0m intervals and poured

Anti-scour blocks to be spaced

than 1 in 3

pipe gradients steeper

block dimensions for

Dotted line indicates

greater

gradients 1:5 or

Required for pipe

FOR STEEP DRAINAGE PIPES

ANTI-SCOUR BLOCKS


D4.25

NOTES:

1.

2.

3.

4.

5.

6.All piles located within the 45° influence envelope shall be drilled.

pipe for the first row of piles.

appropriate) outside of the 45° influence envelope and below the invert level of the sewer

wastewater/stormwater assets. All structural loads shall be absorbed (by means of piles where

No structural loads shall be placed on, or be transferred to the public pipelines, or other public

as a result of any work close to or over Council's assets.

Closed Circuit Television (CCTV) inspections shall be required of Council's assets before and after

Building is not permitted over manholes or connections under any circumstances.

See section ABC & XYZ for more information.

or renewed in place with approved pipe materials at a cost to the development.

Where required by Council, the affected public pipelines or structures shall either be relocated

be so designed that they act independently of the public sewer or stormwater network.

by Council so shall be avoided. Where this is not possible, the building and development shall

Building or other works over public sewer or stormwater pipelines is not a practice supported

Manhole

Piles

Ground Level

Ground Level

influence lin

e

1000 Min. belo

w

influence lin

e

1000 Min. belo

w

pip

e invert

1000 Min. belo

w

clearance

1500 Min. Pile

clearance

1500 Min. Pile

Manholemanhole structure

Outside wall of the

ZONE OF INFLUENCE

See Note 2.

manhole structure

Outside wall of the

Public Main

Public Main

clearance

Pile

1500 Min.


Retaining Post

First row of piles

of piles

Subsequent row

Piles

PLAN: BUILDING OVER A PUBLIC MAINPLAN: BUILDING ADJACENT TO A PUBLIC MAIN

(Only permitted if an alternative alignment is not possible)

Building envelope Building envelope

45° Influ

ence Lin

e

ELEVATION

InvertPipe

pip

e invert

1000 Min. belo

w

clearancepile

1500 Min.

clearancepile

1500 Min.

Founding Level

Founding Level

as shown

supported by piles founded

All superstructures shall be

cleara

nce

2000 Min.

cleara

nce

2000 Min.

Founding Level

PUBLIC WASTEWATER OR STORMWATER PIPELINES

BUILDING OVER AND ADJACENT TO


D4.26

stormwater bubble up pit d4 - waikato · stormwater bubble up pit outlet as drawing d6.8 double...

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