HUGHES DEVELOPMENTS LIMITED · 2019. 7. 25. · Keeping Our Waterways Clean .....14. 25 July 2019...

HUGHES DEVELOPMENTS LIMITED

Riverside Grove Residential Development

99 Escotts Road, Tuakau

Stormwater Management Guide for Landowners

Page | i

DOCUMENT CONTROL RECORD

Document: Stormwater Management Guide for Landowners

Project: Riverside Grove Residential Development

Client: Hughes Developments Limited

CP Project No: 2011

CP Document No: LG001-v2

Date of Issue: 25 July 2019

Originator: ………………………………………………………………....................

Alister Hood

Civil Engineer

Reviewed By …………………………………………………………………………………

Ryan Pitkethley

Engineering Manager

Approved By: …………………………………………………………………………………

Ryan Pitkethley

Engineering Manager

Contact Details:

Alister Hood

CivilPlan Consultants Ltd

PO Box 97796, Manukau 2241

P: 09 222 2445

M: 0279320030

E: [email protected]

Page | ii

TABLE OF CONTENTS

1. Introduction .............................................................................................. 3

2. Stormwater Mitigation Requirements ...................................................... 4

2.1 Purpose............................................................................................................................. 4

2.2 Runoff from Roads (Council responsibility) .................................................................... 4

2.3 Runoff from Lots (each individual landowner’s responsibility) ..................................... 4

3. On-Lot Stormwater Devices ...................................................................... 5

3.1 Lot Layout ......................................................................................................................... 5

3.2 Rainwater Detention Tank (for roof areas) .................................................................... 6

3.3 Rain Gardens (for paved areas) ....................................................................................... 9

3.4 Device Sizing ................................................................................................................... 11

4. Keeping Our Waterways Clean ............................................................... 14

25 July 2019

Hughes Developments Limited – Riverside Grove – Stormwater Management Guide for Landowners-v2

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1. Introduction

This guide is applicable for lots 1-44 and 55-72 of the Riverside Grove Residential Development at 99

Escotts Road, Tuakau. This guide does not apply to lots 45-54 and 73-93, where stormwater mitigation

is provided by downstream constructed wetlands.

Your property is part of a new 93 lot subdivision. The stormwater management for this subdivision has

been approved as outlined in the Riverside Grove Stormwater Report by Birch Surveyors dated August

2017, and updated in the Riverside Grove Stormwater Management Report by CivilPlan Consultants

dated March 2018.

A stormwater pipe network has been constructed as part of the subdivision which collects stormwater

from the roads and provides a stormwater connection for each property, as shown in Figure 1, below.

The subdivision also has a Resource Consent which requires stormwater devices to manage runoff from

impervious areas. A consent notice on the Title of your property requires you to include a detention

tank and a rain garden when you develop it.

Figure 1 – Stage 1 Subdivision Layout

25 July 2019


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2. Stormwater Mitigation Requirements

2.1 Purpose

All new developments create significant areas of new impervious surfaces including roofs, footpaths,

driveways and roads. Rainwater cannot soak into these surfaces, so more stormwater runoff is

generated than was prior to development. Increased stormwater runoff causes problems such as

increased erosion and flooding, and deterioration of stream habitat.

New developments are required to mitigate these problems, using both “top of pipe” solutions on each

individual property, and downstream “bottom of pipe” solutions such as rain gardens and treatment

wetlands, which are owned and maintained by the Waikato District Council. In Stage 1 of this

development the developer has constructed “top of pipe” rain gardens and a “bottom of pipe”

detention tank which will manage the effects of the road runoff, and as a property owner you are also

required to install “top of pipe” solutions when you build on your site. Stage 2 of the development will

include constructed wetlands which will provide both quality treatment and detention and discharge

to the Kairoa Stream to the east.

2.2 Runoff from Roads (Council responsibility)

The developer has constructed rain gardens in the road berms which provide quality treatment for road

runoff. Flooding and erosion are mitigated by a large “bottom of pipe” detention tank as this is most

cost effective. The tank stores and releases runoff to the downstream pond to the south at a controlled

rate, which ensures that:

▪ Peak flows in large storms (up to the 1 in 10 year storm) are reduced to no more than pre-

development flow.

▪ Runoff from smaller storms is captured and released over 24 hours to reduce stream

erosion.

These devices are owned and operated by the Council and are only big enough to manage the road

runoff.

2.3 Runoff from Lots (each individual landowner’s responsibility)

Each property owner (lots 1-44 and 55-72) is required to construct a rain garden and a detention tank

to manage the stormwater runoff from their own property. The detention tank stores runoff from the

roof and releases it to the pipe network at a controlled rate. The rain garden provides quality treatment

for runoff from paved areas such as driveways, and also incorporates detention storage. The storage

provided in the two devices ensures that:

▪ Peak flows from the lot are are reduced to no more than pre-development flow, and

▪ Runoff from the lot in smaller storms is captured and released over 24 hours to reduce

stream erosion.

25 July 2019


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3. On-Lot Stormwater Devices

3.1 Lot Layout

When you apply for Building Consent you will be required to include a rainwater detention tank to

collect water from all roof areas, and a rain garden to collect runoff from all impervious paved areas.

Figure 2 below shows example lot layouts for an option with an above ground tank and an option with

a below ground tank.

Figure 2 – Typical Lot Layouts

with below ground tank with above ground tank

25 July 2019


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3.2 Rainwater Detention Tank (for roof areas)

The downpipes from your roof will be connected to a tank which provides temporary (“live”) storage

of roof runoff.

The tank size is calculated as per Table 2 below. There is no requirement for rainwater reuse, and if

you want the tank to capture water for reuse you will need to add additional “dead storage” volume

for that.

A wide variety of tanks are available for installation either above or below ground. The tank outlet

needs to be higher than your property’s connection to the stormwater pipe network, so that it can

drain by gravity.

An underground tank will be shallow due to the depth of the connection to the pipe network. With a

shallower tank the footprint needs to be bigger than a deeper above ground tank, because more

volume is “not utilised” above the level of the overflow pipe / top of tank (due to tank cover

requirements) and below the outlet orifice. Due to this the outlet sizing operates less optimally, and

therefore the volume of a deeper/taller above ground tank can be slightly smaller than a shallower

below ground tank.

Refer to Figures 3 and 4, below, for typical details for an above ground and a below ground tank option.

Figure 3 – Below Ground Tank Typical Detail

25 July 2019


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Figure 4 – Above Ground Tank Typical Detail

25 July 2019


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3.2.1 Inspections and Maintenance

The detention tank requires regular inspection and maintenance to ensure it continues to operate

effectively. Refer to Table 1 below for an inspection schedule.

In particular, it is important to identify if the tank fails to drain down between storms, which would

occur if the small orifices are blocked.

Table 1: Detention Tank Maintenance Schedule

Frequency

Device Feature Recommended Action 3 monthly

6 monthly

Yearly

Gutters, Spouting and tank inlet

Check and clean gutters and spouting and leaf

strainer.

Check that pipe fittings are still secure and have

not separated.

✓

Check and clean leaf strainer. ✓

Tank hatches & covers

Ensure access hatches are closed. ✓

Inspect for correct fit and seal. ✓

Overflow, outlet pipes & orifices

Inspect to ensure that all orifice and overflow

outlets are clear and drain freely.

✓

Tank Inspect the tank for leaks, sediment build-up and

structural integrity (particularly once the tank is 20

years old).

Check seismic restraint (above ground tanks).

Clean out sediment build-up as required.

✓

Foundation Pad (typically required for above ground tank)

Check for any signs of settlement or cracking of the

concrete.

✓

25 July 2019


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3.3 Rain Gardens (for paved areas)

A rain garden is a landscaped area with free draining soil that runoff is directed to. Impermeable

(paved) areas on your property will need to drain into a rain garden with a plan area of 5% of the paved

area. A typical detail for the rain garden is provided below. The temporary storage volume in the rain

garden is important i.e. do not fill the surface ponding area back in!

Figure 5 – Rain Garden Detail

3.3.1 Construction

Ideally the rain garden should not be built until the rest of the site has been constructed and the site

stabilised. It must be protected from stormwater flows carrying high sediment loads during

construction activities from your site or neighbouring sites. If it is not protected during construction

then the planting soil mix will need to be replaced. If work on the bioretention system needs to

commence before the rest of the site is stabilised then the device should be constructed, but not

planted, and covered with a geofabric and topsoil. This will later be removed and the device planted

once the rest of the site has been stabilised.

3.3.2 Plants

Native plants are preferable but not essential. Any plants which suit your garden may be used. The

plants should be able to tolerate short periods of inundation and longer dry periods, be perennial rather

than annual, have deep fibrous root systems and have spreading rather than clumped growth forms.

Note that the use of wetland plants is not recommended as these plants are not well suited to free

draining soils.

25 July 2019


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3.3.3 Maintenance

Long-term maintenance of the rain garden is important. Remember that it is a garden and not just a

drainage system – it is generally low maintenance, not NO maintenance.

The rain garden will need water when it doesn’t rain until the plants are established. During dry periods

the under drain in the garden may cause the planting soil to dry out. Watering the vegetation on an as

needed basis helps ensure a healthy condition and appearance.

▪ Mulch annually with hardwood mulch as this suppresses weeds and retains moisture.

▪ Every few years excess mulch may need to be removed.

▪ Weed regularly as you would with any garden.

▪ Don’t park or drive on the device as this causes compaction and leaves ruts.

▪ Don’t let fine sediment build up – if a crust forms remove it & rework the top layer of soil.

▪ Keep an eye on the plants – if they are unhappy they may need moving. Plants may need

pruning, thinning or replacing from time to time.

▪ Strong water flows may cause erosion, this will need to be repaired and measures put in

place to prevent recurrence.

▪ Check the outlet orifices and overflow for clogging and remove any build-up of rubbish or

debris regularly.

25 July 2019


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3.4 Device Sizing

The tank and rain garden sizes are calculated according to Table 2 below, or determined from Figures

6, 7 and 8. An example is included for a lot with proposed 150m² roof and 90m² paved.

Both the tank and rain garden will drain to the stormwater pipe network. Refer to Figures 3, 4 and 5 or

the attached drawings for typical details including outlet orifice sizing. The outlet orifice height may

need to be adjusted based on the model of tank you use – refer to section 3.4.3 below.

Table 2: Device Sizing Summary

Lot Numbers

On Lot Treatment Requirements

On Lot Detention Requirements

Stage 1 - Catchment 1

(at-source)

Lots 1-44

Lots 55-66

Rain Garden with plan area of 5% of the paved area.

Above ground tank with volume (m³) of 5% of roof area (m²) or below ground tank with volume (m³) of 7% of roof area (m²).

400mm ponding depth above rain garden

Stage 2 - Catchments 2 and 3

(Wetlands 2 and 3)

Lots 45-54

Lots 73-93 NA NA NA

Stage 2 - Catchment 4

(at-source)

Lots 67-72 Rain Garden with plan area of 5% of the paved area.

Above ground tank with volume (m³) of 5% of roof area (m²) or below ground tank with volume (m³) of 7% of roof area (m²).

400mm ponding depth above rain garden

Figure 6 – Rain Garden Sizing

y = 0.05x

0

2

4

6

8

10

12

14

16

0 50 100 150 200 250 300 350

y =

Rai

n G

ard

en A

rea

(m²)

x = Paved Area (m²)

Example

90m² paved

4.5m² rain garden

25 July 2019


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Page | 12

Figure 7 – Detention Tank Sizing (above ground option)

Figure 8 – Detention Tank Sizing (below ground option)

y = 0.05x

0

2

4

6

8

10

12

14

16

0 50 100 150 200 250 300 350

y =

Det

enti

on

Tan

k V

olu

me

(m

³)

x = Roof Area (m²)

y = 0.07x

0

5

10

15

20

25

0 50 100 150 200 250 300 350

y =

Det

enti

on

Tan

k V

olu

me

(m

³)

x = Roof Area (m²)

Example

150m² roof

7.5m³ detention tank

Example

150m² roof

10.5m³ detention tank

25 July 2019


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Page | 13

3.4.1 Permeable Pavement and Decks

Open wooden decks and “permeable pavement” are considered “self-mitigating” so they can be

ignored when sizing your tank and rain garden. This includes special porous concrete, gobi blocks, and

some other interlocking pavers.

Hamilton City Council provides a guide for the design, construction and maintenance of permeable

pavement at:

https://www.hamilton.govt.nz/our-council/council-publications/manuals/Pages/Three-Waters-

Management-Practice-Notes.aspx

3.4.2 Future Extensions

If in the future you extend your house or create additional impervious paved areas then you will need

to upgrade your detention tank or rain garden to a larger size to allow for the increase area. If rather

than upgrading to a larger size you increase the storage by adding a second tank, this should be

configured in “series” with the original tank so that the outflow is controlled by a single set of orifices.

If future extensions are likely, it is recommended to consider “future proofing” your design by sizing

based on a larger roof area; installing a larger tank initially will be cheaper than upgrading at a later

date.

3.4.3 Outlet Orifices

The typical details specify orifice heights based on an 860mm high Cirtex Rainsmart modular below

ground tank, and a 3m high above ground tank. If the proposed tank is a different height, the height of

the second orifice should be adjusted according to Figure 9, e.g. for a 2100mm high tank the second

orifice is centred at 0.286x2100+43 = 644mm

Figure 9 – Height of Second Orifice

y = 0.286x + 43

0

200

400

600

800

1000

1200

0 500 1000 1500 2000 2500 3000 3500

y =

Hei

ght

of

seco

nd

ori

fice

(m

m)

x = Proposed Tank Height (mm)

Example

2100mm high tank

Orifice height = 650mm

https://www.hamilton.govt.nz/our-council/council-publications/manuals/Pages/Three-Waters-Management-Practice-Notes.aspx

https://www.hamilton.govt.nz/our-council/council-publications/manuals/Pages/Three-Waters-Management-Practice-Notes.aspx

25 July 2019


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Page | 14

4. Keeping Our Waterways Clean

The rain gardens are intended only to provide treatment for normal stormwater runoff. Stormwater

from your property and the roads is discharged to the stream and flows from there to the sea, so it is

important that the water is not otherwise polluted.

Please make sure items such as these are kept out of the rain gardens and all stormwater drains:

▪ Litter

▪ Lawn clippings and garden waste

▪ Pool or spa pool water

▪ Paint

▪ Chemicals, such as pesticides and fertilisers

▪ Waste from cars and boats, such as oil, fuel and antifreeze

▪ Animal waste

▪ Construction materials and debris

S:\Jobs\2011 - Hughes Developments Tuakau\reports\on-lot stormwater devices\Stormwater Management Guide for Landowners-v2.docx

DP

PROPOSED RAIN GARDEN

DN10

0 PR

IVAT

E SW

PIP

E

DWELLING

ROAD

BOU

NDA

RY

BOU

NDA

RY

BOUNDARY

BOUNDARY

FIRST FLUSH DIVERTER(S) DISCHARGETO GROUND PRIOR TO TANK

DRIV

EWAY

PUBLIC STORMWATERCONNECTION POINT

RAIN

GAR

DEN

DP

DP

FALL

FALL

DP

DN600 MINI MANHOLEWITH OUTLET CONTROL

DN15

0 PU

BLIC

SW

CO

NN

ECTI

ON

PROPOSED ABOVE GROUNDDETENTION TANK

DWELLING

LEAF GUARD

FIRST FLUSH SYSTEM

100mmOVERFLOW PIPE

CONTROLLEDOUTLET ORIFICE

10mm

OUTLET TO RETICULATEDSTORMWATER SYSTEM

ABOVE GROUNDSTORMWATER

DETENTION TANK

CONTROLLEDOUTLET ORIFICE

10mm

900m

m

100m

m

RAINGARDEN

100mm OUTLET PIPETO RETICULATEDSTORMWATER SYSTEM

2 ORIFICES:48mmØ @ 100mm BELOW LL25mmØ @ 350mm BELOW LL

L.L.

300m

mSU

MP

400m

m

DETENTION TANK

FIRST FLUSH DIVERTER OUTLETSTO GROUND / GARDEN ETC

DN600 1.6m DEEPMINI MANHOLE

1450

mm

MIN

.

2900

mm

SHEET TITLE:

ON-LOT STORMWATER MITIGATIONTYPICAL LOT LAYOUT

ABOVE GROUND DETENTION SYSTEMLevel 3, 3 Osterley Way, Manukau, Auckland. Phone: 09 222 2445

PROJECT TITLE:

HUGHES DEVELOPMENTS LIMITED99 ESCOTTS ROAD

TUAKAU

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K18.

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DRAWING NUMBER: REV:

ISSUE STATUS:

2011-01-SK18-1 5

FOR INFORMATION

SCALE BARN.T.S.

AS SHOWNSCALE: (A1/A3)

TYPICAL STORMWATER DETENTION SYSTEM PLANSCALE: (A1/A3) 1:100/1:200

TYPICAL STORMWATER DETENTION SYSTEM LAYOUTSCALE: (A1/A3) 1:20/1:40

NOTES:1. RAINGARDEN DESIGN BASED ON HAMILTON CITY COUNCIL THREE WATERS MANAGEMENT

PRACTICE NOTE HCC04.

2. TANK AND RAINGARDEN LOCATION SHOWN ARE INDICATIVE ONLY. ACTUAL LOCATIONSTO BE CONFIRMED ON SITE.

3. REFER TO TANK MANUFACTURER'S SPECIFICATION AND INSTALLATION GUIDELINES WHENINSTALLING TANK.

TYPICAL BIO-RETENTION LAYERSN.T.S.

400mm400mm

400mm

50mm

200mm

200mm200mm

CHECKED:

APPROVED: DATE:

DATE:

THIS DRAWING (AND DESIGN) REMAINS THE PROPERTY OF CIVILPLAN CONSULTANTSLIMITED AND MAY NOT BE REPRODUCED OR ALTERED WITHOUT PRIOR AGREEMENTFROM CIVILPLAN CONSULTANTS LIMITED. CIVILPLAN CONSULTANTS LIMITED WILL NOTACCEPT LIABILITY ARIS ING FROM UNAUTHORISED USE OF THIS DRAWING.

DRAWN: DATE:MM 12.03.18

RJP 11.07.19

RJP 11.07.19

BY DATEREVISION DETAILSREV1 FOR INFORMATION MM 28.03.182 FOR INFORMATION RJP 10.07.193 FOR INFORMATION RJP 11.07.194 FOR INFORMATION RJP 11.07.195 FIRST FLUSH DIVERTERS CLARIFIED RJP 25.07.19

DP

PROPOSED RAIN GARDEN

DN600 MINIMANHOLE

DN10

0 PR

IVAT

E SW

PIP

E

DWELLING

ROAD

BOU

NDA

RY

BOU

NDA

RY

BOUNDARY

BOUNDARY

DRIV

EWAY

PUBLIC STORMWATERCONNECTION POINT

RAIN

GAR

DEN

BELOW GROUNDDETENTION TANK(MODULAR SYSTEM)

DN1050 OUTLET CONTROLMANHOLE

FALL

FALL

DP DP

DP

DN15

0 PU

BLIC

SW

CO

NN

ECTI

ON

FIRST FLUSH DIVERTEROUTLETS TO GROUNDPRIOR TO TANK DN600 1.6m DEEP

MINI MANHOLE

300m

mSU

MP

LEAF GUARD

FIRST FLUSH SYSTEM INLINETO TANK PIPE WORK

150mm INLET PIPE

BELOW GROUND DETENTION TANK(SHALLOW MODULAR SYSTEM)

RAINGARDEN

100mm OUTLET PIPETO RETICULATEDSTORMWATER SYSTEM

2 ORIFICES:48mmØ @ 100mm BELOW LL25mmØ @ 350mm BELOW LL

L.L.

AIR VENT/MONITORING POINT/

FLUSHING POINT

INLET/OUTLET PIPEPIPE TO BE PERFORATED & SURROUNDEDWITH HIGH FLOW GEOTEXTILE

AIR VENT/MONITORING POINT/

FLUSHING POINT

COVE

R

400m

m100mm OUTLET PIPETO RETICULATEDSTORMWATER SYSTEM

OVERFLOW INLETLEVEL WITH TOP

OF TANK12mm ORIFICES

400m

m

500m

m

SCREW CAP WITH 10mm ORIFICEAT LEVEL OF BASE OF TANK

1450

mm

MIN

.

DN1050 MANHOLE WITHOUTLET CONTROL

100mmOUTLET PIPEUPSTAND

880m

m

300mm COVER FOR NON-TRAFFICABLE APPLICATIONS,600mm COVER WITH GEOGRID INSTALLED 300mm ABOVE

TANKS WHERE TRAFFICKED, IN ACCORDANCE WITHMANUFACTURER'S SPECIFICATIONS

FIRST FLUSH DIVERTER OUTLETSTO GROUND / GARDEN ETC

BY DATEREVISION DETAILSREV1 FOR INFORMATION MM 28.03.182 FOR INFORMATION RJP 10.07.193 FOR INFORMATION RJP 11.07.194 FOR INFORMATION RJP 11.07.195 FIRST FLUSH DIVERTERS CLARIFIED RJP 25.07.19

SHEET TITLE:

ON-LOT STORMWATER MITIGATIONTYPICAL LOT LAYOUT

BELOW GROUND DETENTION SYSTEMLevel 3, 3 Osterley Way, Manukau, Auckland. Phone: 09 222 2445

PROJECT TITLE:


TUAKAU

CHECKED:

APPROVED: DATE:

DATE:


DRAWN: DATE:MM 12.03.18

RJP 11.07.19

RJP 11.07.19

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ISSUE STATUS:

2011-01-SK18-2 5

FOR INFORMATION

SCALE BARN.T.S.

AS SHOWNSCALE: (A1/A3)

TYPICAL STORMWATER DETENTION SYSTEM PLANSCALE: (A1/A3) 1:100/1:200

TYPICAL STORMWATER DETENTION SYSTEM LAYOUTSCALE: (A1/A3) 1:20/1:40

NOTES:1. RAINGARDEN DESIGN BASED ON HAMILTON CITY COUNCIL THREE WATERS MANAGEMENT

PRACTICE NOTE HCC04.

2. TANK AND RAINGARDEN LOCATION SHOWN ARE INDICATIVE ONLY. ACTUAL LOCATIONSTO BE CONFIRMED ON SITE.

3. REFER TO TANK MANUFACTURER'S SPECIFICATION AND INSTALLATION GUIDELINES WHENINSTALLING TANK.

TYPICAL BIO-RETENTION LAYERSN.T.S.

400mm400mm

400mm

50mm

200mm

200mm200mm

1DP 164972

4DP 153726

2DP 3364183

DP 192647

9DP 197062

PT ALLOT 14PSH OF TUAKAU

1

2

3

4

5

6

7 8 9

10

11

12

13

14

15

300

16

17

18

19

20

21 22 23 24 25

2635

34

33

32

31 30

29

28

27

36

37

38

39

40

41

42

43

44

46

47

48

49

50

51

52

53

54

55 56 57 58 59 60 61 62 63 64 65 66 67 68

200KAIROA COURT

RA

PA

NA

DR

IVE

RA

PA

NA

DR

IVE

TA

UR

OA

DR

IVE

TA

UR

OA

DR

IVE

REFER TO SHEET 2011-01-AB401


REFER TO SHEET 2011-01-AB403 REFER TO SHEET 2011-01-AB404

ESCOTTSROAD

DETENTION TANK22.1m x 11.2m

RETENTION VOLUME 499m³ MIN FL 36.0 MIN FL 37.1MIN FL 36.0

RAPANA DRIVECOOKDRIVE

TA

UR

OA

DR

IVE

ESCOTTS ROAD RG

LEGEND

STORMWATER LINE AND MANHOLE

EXISTING


STORMWATER CATCHPIT

ASBUILT

DN1350 SW

DN300

SCRUFFY DOME INLET/OUTLET MANHOLE

PLOTTED FROM COUNCIL RECORDS(CR)

X.Xm

STORMWATER INLETSTORMWATER OUTLET

STORMWATER CONNECTION

RAIN GARDENRECHARGE PITRAIN GARDEN

STORMWATER DETENTION TANK

STAGE BOUNDARYUNDERFILL DRAIN

BY DATEREVISION DETAILSREVA ASBUILT ISSUED RJP 26.06.19

SHEET TITLE:

STORMWATER ASBUILTSTAGE 1 - OVERALL LAYOUTSUB0311/18 & LUC0489/18

Level 3, 3 Osterley Way, Manukau, Auckland. Phone: 09 222 2445

PROJECT TITLE:


TUAKAU

CHECKED:

APPROVED: DATE:

DATE:


DRAWN: DATE:DKP 05.2019

MRR 26.06.19

RJP 26.06.19

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by: M

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27.0

6.19

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ISSUE STATUS:

2011-01-AB400 A

ASBUILT

0 10 20 30 40 50mSCALE BAR1:1000@A3

SCALE: (A1/A3) 1:500 / 1:1000

I, RYAN JAMES PITKETHLEY, BELIEVE ON REASONABLE GROUNDSTHAT THE PIPE SIZES, FITTINGS POSITIONS, SCHEDULE OFCO-ORDINATES AND LID LEVELS, ARE CORRECT BASED ON THEINFORMATION SUPPLIED TO CIVILPLAN BY THE CONTRACTORFOR THE WORK, TWOMEY CONSTRUCTION LTD.

RYAN JAMES PITKETHLEY 26.06.2019CMENGNZ CPENG DATE

NOTES1. LEVELS ARE IN TERMS OF AUCKLAND VERTICAL DATUM.2. COORDINATES ARE IN TERMS OF GD2000 MT EDEN CIRCUIT.3. ALL STORMWATER LINES OVER DN150 ARE RCRRJ.4. ALL DN 100 & DN 150 STORMWATER LINES ARE uPVC DWV SN16

AS/NZ 1260.5. ALL SINGLE CATCHPIT LEADS ARE DN225 RCRRJ CLASS 4 PIPE.6. ALL DOUBLE CATCHPIT LEADS ARE DN300 RCRRJ CLASS 4 PIPE.7. ALL INVERTS ARE MEASURED CLOCKWISE FROM THE OUTLET.8. MANHOLES ARE 1050mm UNLESS SHOWN OTHERWISE.9. SEE SHEET 2011-01-AB405-AB407 FOR RAIN GARDEN DETAILS.10. SEE SHEET 2011-01-AB407 FOR CO-ORDINATE SCHEDULES.11. CONSTRUCTION WAS UNDERTAKEN IN 2018 AND 2019.


RGCP1/7.1LL 39.35ILOUT 37.99

RGCP 1/7.2LL 39.32ILOUT 38.00

SWMH 2/31050ø RC

LL 39.67ILOUT 37.98

ILIN 38.07

SWMH 3/31050ø RC

LL 39.60ILOUT 37.94

ILIN 38.03 (DN100)

SWMH 2/41050ø RC

LL 39.96ILOUT 38.16

ILIN 38.35ILIN 38.44ILIN 38.21

RGCP 2/4.2LL 39.89ILOUT 38.49

RGCP2/4.1LL 39.77ILOUT 38.46

RGCP3/2.1LL 38.49IL 37.18

RGCP 1/6.1LL 38.71ILOUT 37.38

SWMH 1/61050ø RCLL 38.93ILOUT 37.18ILIN 37.26ILIN 37.29ILIN 37.26

DN300 SW 18.25m

@1.0%

DN22

5 SW

71.

16m

@0.

7%DN

300

SW 7

1.43

m @

1.0%

DN22

5 SW

54.

33m

@1.

5%DN

225

SW 5

0.76

m @

1.5%

DN225 SW 61.97m @0.6%

DN225 SW 6.32m @1.4%

DN22

5 SW

13.0

6m @

1.1%

DN22

5 SW

68.

37m

@1.

4%DN

225

SW 5

0.99

m @

2.4%

DN225 SW 5.32m @1.7%

SWMH 1/71050ø RCLL 39.27ILOUT 37.79ILIN 37.82ILIN 37.89

DN225 SW11.01m @1.1%

RGCP1/6.2LL 38.67IL 37.38 DN225 SW 3.15m @1.9%

DN225 SW 3.19m @1.6%

DN225 SW 2.43m @0.8%

DN100 5.65m(@ CH7.01)

DN100 5.71m(@ CH23.71)

DN100 4.96m(@ CH40.81)

DN100 4.75m(@ CH57.23)

DN100 5.17m(@ CH44.99)

DN100 5.20m(@ CH61.72)

DN100 4.85m(@ CH22.11)

DN100 5.01m(@ CH40.49)

DN100 4.39m(@ CH4.67)

DN100 4.58m(@ CH21.42)

DN100 4.18m(@ CH38.07)

DN100 4.82m(@ CH0.00)

DN100 4.75m(@ CH26.69)

DN100 5.01m(@ CH45.71)

DN100 4.57m(@ CH14.10)

DN100 4.75m(@ CH33.07)

DN100 5.56m(@ CH52.09)

DN100 5.34m

(@ CH32.77)

1

2

3

4

5

6 10

11

12

13

14

1516

17

18

19

20 35

34

33

32

31

RA

PA

NA

DR

IVE

RA

PA

NA

DR

IVE

1DP 164972

ESCOTTS ROAD


RGCP 2/2.1LL 38.44ILOUT 37.09

SW TWIN CULVERTOUTLET 14/0

ILOUT 38.85

CP 3LL 39.36

ILOUT 38.94

CP 3 OUTLETILOUT 38.86

SW TWIN CULVERTINLET 14/1ILOUT 38.97

DN225 SW 8.31m @1.0%

TWIN

DN375 SW

17.61m @

0.7%

SWMH 3/21050ø RC

LL 38.73ILOUT 37.03

ILIN 37.13ILIN 37.12

ESCOTTS ROAD

DN225 SW 8.78m @1.1%

RG

LEGEND


EXISTING


STORMWATER CATCHPIT

ASBUILT

DN1350 SW

DN300



X.Xm







SHEET TITLE:

STORMWATER ASBUILTSTAGE 1 - DETAIL SHEET 1

SUB0311/18 & LUC0489/18Level 3, 3 Osterley Way, Manukau, Auckland. Phone: 09 222 2445

PROJECT TITLE:


TUAKAU

CHECKED:

APPROVED: DATE:

DATE:



MRR 26.06.19

RJP 26.06.19

Prin

ted

by: M

ATT@

27.0

6.19

//

File

path

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1-01

-AB4

00.D

WG


ISSUE STATUS:

2011-01-AB401 A

ASBUILT

0 5 10 15 20 25mSCALE BAR1:500@A3

SCALE: (A1/A3) 1:250 / 1:500



I, RYAN JAMES PITKETHLEY, BELIEVE ON REASONABLE GROUNDS THATTHE PIPE SIZES, FITTINGS POSITIONS, SCHEDULE OF CO-ORDINATESAND LID LEVELS, ARE CORRECT BASED ON THE INFORMATIONSUPPLIED TO CIVILPLAN BY THE CONTRACTOR FOR THE WORK,TWOMEY CONSTRUCTION LTD.


1DP 164972

RGCP2/4.1LL 39.77

OUT 38.46

SWMH 2/51050ø RCLL 40.58ILOUT 38.57ILIN 38.72 (DN100)

SWMH 5/31050ø RC

LL 41.24ILOUT 38.54ILIN 39.61

SWMH 5/21050ø RCLL 40.03ILOUT 37.69ILIN 38.13ILIN 37.77ILIN 38.14 (DN100)

SWMH 4/51050ø RC

LL 39.82ILOUT 37.98

ILIN 38.37 (DN100)ILIN 38.09 RGCP 5/2.1

LL 39.50ILOUT 38.18

DN225 SW 61.97m @0.6%

DN225 SW 6.32m @1.4%

DN225 SW

63.66m @

1.2%

DN22

5 SW

87.

81m

@1.

8%

DN225 SW2.73m @2.2%

DN22

5 SW

94.

16m

@2.

6%

DN225 SW 3.19m @1.6%

DN225 SW 2.43m @0.8%

DN225 SW7.87m @0.6%

DN100 5.01m(@ CH45.71)

DN100 4.57m(@ CH14.10)

DN100 4.75m(@ CH33.07)

DN100 5.56m(@ CH52.09)

DN100 5.34m

(@ CH32.77)

DN100 5.36m

(@ CH0.00)

DN100 5.57m(@ CH34.43)

DN100 5.05m(@ CH53.40)

DN100 5.15m(@ CH72.15)

DN100 5.01m

(@ CH0.00)

DN100 5.84m

(@ CH21.65)

DN100 5.78m

(@ CH50.60)

DN100 8

.47m

(@ CH0.0

0)

DN100 5.40m(@ CH57.07)

DN100 5.41m(@ CH74.00)

DN100 5.37m(@ CH0.00)

16

17

18

19 34

33

32

31 30

29

28

27

38

39

40

41

42

43

44

46

47

48

49

50

51

52

200

TA

UR

OA

DR

IVE


DN100 37.67m(@ CH50.93)

DN100 38.59m(@ CH52.06)

DN100 38.44m(@ CH88.94)

DN100 38.70m(@ CH90.12)

SWMH 2/21050ø RC

36.94 37.04 37.06

RGCP 2/2.1

37.09

TA

UR

OA

DR

IVE

ESCOTTS ROAD

RGCP 4/5.1LL 39.51ILOUT 38.15

RG

LEGEND


EXISTING


STORMWATER CATCHPIT

ASBUILT

DN1350 SW

DN300



X.Xm







SHEET TITLE:



PROJECT TITLE:


TUAKAU

CHECKED:

APPROVED: DATE:

DATE:



MRR 26.06.19

RJP 26.06.19

Prin

ted

by: M

ATT@

27.0

6.19

//

File

path

: S:

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1-01

-AB4

00.D

WG


ISSUE STATUS:

2011-01-AB402 A

ASBUILT

0 5 10 15 20 25mSCALE BAR1:500@A3

SCALE: (A1/A3) 1:250 / 1:500





3DP 192647

9DP 197062


RGCP3/2.1LL 38.49IL 37.18

RGCP 1/6.1LL 38.71ILOUT 37.38


RGCP 1/5.2LL 38.15ILOUT 36.74

RGCP 1/5.1LL 38.26

ILOUT 36.97

SWMH 1/41050ø RCLL 38.13ILOUT 35.02ILIN 36.38 (DN100)ILIN 35.55ILIN 36.02 (DN100)


SWMH 2/11050ø RCLL 37.87ILOUT 35.60ILIN 35.75ILIN 35.74ILIN 36.56 (DN100)ILIN 36.18

RGCP 3/1.1LL 37.67ILOUT 36.33

RGCP 1/3.1LL 37.55

ILOUT 36.16

RGCP 2/1.1LL 37.57ILOUT 36.24

DN30

0 SW

71.

43m

@1.

0%

DN22

5 SW

50.

76m

@1.

5%

DN22

5 SW

50.

99m

@2.

4%

DN225 SW10.56m @4.0%DN300 SW 7.70m @0.9%

DN300 SW 39.79m @2.0%

DN300 SW 38.29m @1.2%

DN225 SW5.83m @0.9%

DN225 SW 5.32m @1.7%

DN225 SW5.70m @0.7%

DN225 SW11.01m @1.1%

RGCP1/6.2LL 38.67IL 37.38

DN22

5 SW

15.1

3m @

0.8%

SWMH 1/51050ø RCLL 38.60ILOUT 36.36ILIN 37.03 (DN100)ILIN 36.93ILIN 36.47ILIN 36.62

DN30

0 SW

19.6

5m @

5.3%

DN225 SW 6.66m @0.9%

DN225 SW 3.15m @1.9%

DN225 SW 3.19m @1.6%

DN375 SW 26.92m @0.9%

DN375 SW 33.50m @1.9%

DN100 5.65m(@ CH7.01)

DN100 4.82m(@ CH28.66)

DN100 5.17m(@ CH44.99)

DN100 5.20m(@ CH61.72)

DN10

0 4.

49m

(@ C

H0.0

0)

DN10

0 4.

78m

(@ C

H19.

65)

DN10

0 4.

96m

(@ C

H0.0

0)

DN10

0 6.

56m

(@ C

H20.

35)

DN100 5.77m(@ CH1.39)

DN100 4.85m(@ CH22.11)

DN100 5.01m(@ CH40.49)

DN100 4.39m(@ CH4.67)

DN100 5.73m

(@ CH0.00)

DN100 4.75m(@ CH26.69)

DN100 5.01m(@ CH45.71)

DN100 15.41m(@

CH0.00)

4

5

6

7 8 9

10

11

12

300

19

20

21

22

35

34

55 56 57 58 59 60

RA

PA

NA

DR

IVE

RA

PA

NA

DR

IVE


2 x

DN15

0 SW

29.

23m

@0.

6%2

x DN

150

SW 2

9.23

m @

0.6%

2 x

DN15

0 SW

29.

23m

@0.

5%

DN10

0 4.

27m

(@ C

H0.0

0)

DN10

0 4.

11m

(@ C

H14.

97)

DN10

0 15

.19m

(@ C

H0.0

0)

CP 0LL 30.92

ILOUT 30.80

CP 2LL 33.43ILOUT 33.01

SWMH 1/12050ø RC

LL 34.66LL 34.78

ILOUT 31.322xILIN 31.882xILIN 32.052xILIN 32.25

DN50 ORIFICE IL 31.88DN300 ORIFICE IL 32.61DN375 ORIFICE IL 33.33

TOP OF WEIR 34.00SEE 2011-01-AB407 FOR

MANHOLE DETAIL

DN600 SW3.13m @0.6%


RGCP 2/2.1LL 38.44ILOUT 37.09


RETENTIONVOLUME 499m³

DISCHARGE TO POND

SWMH 3/21050ø RC

LL 38.73ILOUT 37.03


RAPANA DRIVE

COOK DRIVEDN375 SW 6.74m @0.9%

RG

LEGEND


EXISTING


STORMWATER CATCHPIT

ASBUILT

DN1350 SW

DN300



X.Xm







SHEET TITLE:



PROJECT TITLE:


TUAKAU

CHECKED:

APPROVED: DATE:

DATE:



MRR 26.06.19

RJP 26.06.19

Prin

ted

by: M

ATT@

27.0

6.19

//

File

path

: S:

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1-01

-AB4

00.D

WG


ISSUE STATUS:

2011-01-AB403 A

ASBUILT

0 5 10 15 20 25mSCALE BAR1:500@A3

SCALE: (A1/A3) 1:250 / 1:500





4DP 1537262

DP 336418

SWMH 2/11050ø RC

35.60 35.75 35.74 36.56 (DN100) 36.18

SWMH 4/21050ø RC

LL 37.27ILOUT 34.23

ILIN 35.42 (DN100)ILIN 35.60 (DN100)

ILIN 34.33

RGMH 1/2.11050ø RCSCRUFFY DOMELL 36.50ILOUT 35.26

SWMH 4/11050ø RCLL 36.92ILOUT 34.06ILIN 35.11 (DN100)ILIN 35.13 (DN100)

SWMH 4/31050ø RC

LL 37.47ILOUT 34.46

ILIN 34.66 (DN100)ILIN 35.54

ILIN 35.39 (DN100)

SWMH 4/41050ø RC

LL 37.70ILOUT 35.31

ILIN 35.48ILIN 36.17ILIN 35.38ILIN 35.36

SWMH 6/21050ø RCLL 37.81ILOUT 35.64ILIN 35.83 (DN100)

RGCP 6/1.1LL 37.35ILOUT 36.02

SWMH 5/11050ø RC

LL 37.83ILOUT 36.01

ILIN 36.10ILIN 36.73 (DN100)

ILIN 36.19

RGCP 4/4.1LL 37.49ILOUT 36.22

DN22

5 SW

87.

81m

@1.

8%

DN300 SW 9.14m @1.1%

DN225 S

W

19.35

m @3.3

%

DN225 SW4.65m @1.1%

DN22

5 SW

94.

16m

@2.

6%

DN150 SW 23.87m @0.6%

DN225 SW3.33m @0.9%

DN300 SW 20.96m @3.7%DN375 SW 16.92m @0.8%

DN225 SW 6.66m @0.9%

DN225 SW 3.19m @1.6%

DN225 SW

12.52m @0.4%

DN37

5 SW

10.0

3m @

0.7%

DN375 SW 26.92m @0.9%

DN375 SW 33.50m @1.9%

DN100 5.73m

(@ CH0.00)

DN100 4.75m(@ CH26.69)

DN100 5.01m(@ CH45.71)

DN10

0 6.

76m

(@ C

H0.0

0)

DN100 5.87m

(@ CH0.00)

DN10

0 6.

15m

(@ C

H0.0

0)

DN10

0 6.

77m

(@ C

H0.0

0)

DN10

0 15

.09m

(@ C

H0.0

0)

DN100 5.84m

(@ CH0.00)

DN100 5.61m

(@ CH0.00)

DN100 4.79m

(@ CH0.00)

DN100 6.11m

(@ CH0.00)

DN100 5.55m(@ CH13.99)

DN100 5.57m(@ CH34.43)

DN100 5.02m(@ CH36.24)

DN100 5.40m(@ CH57.07)

300

19

20

21

22 23 24 25

2635

3427

36

37

38 52

53

54

60 61 62 63 64 65 66 67

TAUROA DRIVE

SWMH 1/31050ø RC

34.43 34.55 36.11 34.56

RGCP 5/1.1LL 37.52ILOUT 36.29

SWMH 6/11050ø RC

LL 37.54ILOUT 35.41


ILIN 35.92 (DN100)ILIN 35.92 (DN100)

2 x

DN15

0 SW

29.

23m

@0.

6%2

x DN

150

SW 2

9.23

m @

0.6%

2 x

DN15

0 SW

29.

23m

@0.

5%

SW OUTLET 1/0ILOUT 31.30

DN100 7.62m(@ CH0.00)

DN10

0 4.

11m

(@ C

H14.

97)

DN10

0 15

.19m

(@ C

H0.0

0)

CP 1LL 30.72ILOUT 30.30CP 0

LL 30.92ILOUT 30.80

SWMH 1/21500ø RCLL 36.902xILOUT 32.062xILOUT 32.222xILOUT 32.39ILIN 33.80ILIN 34.94ILIN 35.20ILIN 33.83

SWMH 1/12050ø RC

LL 34.66LL 34.78

ILOUT 31.322xILIN 31.882xILIN 32.052xILIN 32.25

DN50 ORIFICE IL 31.88DN300 ORIFICE IL 32.61DN375 ORIFICE IL 33.33

TOP OF WEIR 34.00SEE 2011-01-AB407 FOR

MANHOLE DETAIL

DN600 SW3.13m @0.6%

DN100 37.67m(@ CH50.93)

DN100 38.59m(@ CH52.06)

SWMH 2/21050ø RC

36.94 37.04 37.06


RETENTIONVOLUME 499m³

DISCHARGE TO POND VIA UNDERFILL DRAIN

MIN FL 36.0 MIN FL 37.1MIN FL 36.0

COOK DRIVE

TA

UR

OA

DR

IVE

DN375 SW 6.74m @0.9%

RG

LEGEND


EXISTING


STORMWATER CATCHPIT

ASBUILT

DN1350 SW

DN300



X.Xm







SHEET TITLE:



PROJECT TITLE:


TUAKAU

CHECKED:

APPROVED: DATE:

DATE:



MRR 26.06.19

RJP 26.06.19

Prin

ted

by: M

ATT@

27.0

6.19

//

File

path

: S:

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1-01

-AB4

00.D

WG


ISSUE STATUS:

2011-01-AB404 A

ASBUILT

0 5 10 15 20 25mSCALE BAR1:500@A3

SCALE: (A1/A3) 1:250 / 1:500





RGCP 1/7.1LL 39.35ILOUT 37.99

RGCP 1/7.2LL 39.32ILOUT 38.00

DN300 SW 18.25m

@1.0%


1

1DP 164972

RG 1/7.1 (7.8m³)1.9mx6.8mx0.6m DEEP

RG 1/7.2 (11.6m³)2.2mx8.8mx0.6m DEEP

DN22

5 SW

71.1

6m @

0.7%

SW TWIN CULVERTOUTLET 14/0ILOUT 38.85

CP 3LL 39.36ILOUT 38.94

CP 3 OUTLETILOUT 38.86

SW TWIN CULVERTINLET 14/1ILOUT 38.97

DN225 SW8.31m @1.0%

TWIN

DN375 SW

17.61m @

0.7%

ESCOTTS ROAD

2.49

3.79

2.30

RA

PA

NA

DR

IVE

DN225 SW 8.78m @1.1%



RGCP 1/6.1LL 38.71

ILOUT 37.38


DN22

5 SW

71.

16m

@0.

7%

DN30

0 SW

71.

43m

@1.

0%

DN225 SW 5.32m @1.7%DN225 SW 11.01m @1.1%

RGCP 1/6.2LL 38.67IL 37.38

RA

PA

NA

DR

IVE

RG 1/6.2 (9.1m³)1.7mx9.0mx0.6m DEEP

RG 1/6.1 (7.0m³)1.4mx8.4mx0.6mDEEP

3.70

0.36

4.04


SWMH 2/11050ø RCLL 37.87ILOUT 35.60ILIN 35.75ILIN 35.74ILIN 36.56 (DN100)ILIN 36.18

RGCP 3/1.1LL 37.67ILOUT 36.33

RGCP 1/3.1LL 37.55

ILOUT 36.16

RGCP 2/1.1LL 37.57ILOUT 36.24

DN225 SW 10.56m @4.0%

DN300 SW 7.70m @0.9%

DN300 SW 38.29m @1.2%

DN225 SW5.83m @0.9% DN

300

SW 1

9.65

m @

5.3%

DN225 SW 6.66m @0.9%

9

59


RA

PA

NA

DR

IVE

RAPANA DRIVE

RG 3/1.1 (14.2m³)2.7mx8.8mx0.6m DEEP

RG 1/3.1 (8.5m³)7.5mx1.9mx0.6m DEEP

RG 2/1.1 (7.5m³)2.4mx5.2mx0.6mDEEP

21

COOKDRIVE

5.46

8.10

4.525.33

3.91

3.60

RGCP 1/5.2LL 38.15ILOUT 36.74

RGCP 1/5.1LL 38.26

ILOUT 36.97

DN300 SW 39.79m @2.0%

DN225 SW5.70m @0.7%

DN22

5 SW

15.

13m

@0.

8%

SWMH 1/51050ø RCLL 38.60ILOUT 36.36ILIN 37.03 (DN100)ILIN 36.93ILIN 36.47ILIN 36.62

7

55 56

RG 1/5.1 (9.8m³)2.1mx7.8mx0.6m

DEEP

DN30

0 SW

71.

43m

@1.

0%

RAPANA DRIVE

RG 1/5.2 (7.9m³)1.5mx8.8mx0.6mDEEP

12.9

5

6.25

1.91

4.94

RG

LEGEND


EXISTING


STORMWATER CATCHPIT

ASBUILT

DN1350 SW

DN300



X.Xm







SHEET TITLE:

STORMWATER ASBUILTSTAGE 1 - RAIN GARDEN - DETAIL SHEET 1


PROJECT TITLE:


TUAKAU

CHECKED:

APPROVED: DATE:

DATE:



MRR 26.06.19

RJP 26.06.19

Prin

ted

by: M

ATT@

27.0

6.19

//

File

path

: S:

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\201

1-01

-AB4

00.D

WG


ISSUE STATUS:

2011-01-AB405 A

ASBUILT

0 2.5 5 7.5 10 12.5mSCALE BAR1:250@A3

SCALE: (A1/A3) 1:125 / 1:250

RAIN GARDEN DETAIL 1SCALE: (A1/A3) 1:125/1:250




KEYPLAN

1 6

52

3 4 7 8

9





RGCP 3/2.1LL 38.49IL 37.18

DN22

5 SW

54.

33m

@1.

5%DN

225

SW 5

0.76

m @

1.5%

DN22

5 SW

68.

37m

@1.

4%DN

225

SW 5

0.99

m @

2.4%

DN225 SW 3.15m @1.9% DN225 SW 3.19m @1.6%

11

12

13

18

19

20

RA

PA

NA

DR

IVE

RG 3/2.1 (7.7m³)1.5mx8.5mx0.6mDEEP

RG 2/2.1 (8.1m³)1.6mx8.5mx0.6m

DEEP


RGCP 2/2.1LL 38.44ILOUT 37.09

SWMH 3/21050ø RC

LL 38.73ILOUT 37.03


0.25

3.73

1.01

3.97

1DP 164972

SWMH 2/31050ø RC

LL 39.67ILOUT 37.98

ILIN 38.07

SWMH 2/41050ø RC

LL 39.96ILOUT 38.16

ILIN 38.35ILIN 38.44ILIN 38.21

RGCP 2/4.2LL 39.89ILOUT 38.49

RGCP 2/4.1LL 39.77ILOUT 38.46

DN225 SW 61.97m @0.6%DN225 SW 6.32m @1.4%

DN22

5 SW

13.

06m

@1.

1%

DN225 SW 2.43m @0.8%

16

RG 2/4.2 (11.4m³)2.0mx9.5mx0.6m DEEP

RG 2/4.1 (10.7m³)1.9mx9.4mx0.6m DEEP

RA

PA

NA

DR

IVE

ESCOTTS ROAD

2.852.56

5.15

3.72

SWMH 4/41050ø RC

LL 37.70ILOUT 35.31


RGCP 6/1.1LL 37.35ILOUT 36.02

RGCP 4/4.1LL 37.49ILOUT 36.22

DN300 SW 9.14m @1.1%

DN225 S

W 19

.35m @

3.3%

DN225 SW4.65m @1.1%

DN150 SW 23.87m @0.6%

DN225 SW3.33m @0.9%

DN300 SW20.96m @3.7%

DN225 SW 12.52m @

0.4%

25

36

64

TAUROA DRIVERG 6/1.1 (9.0m³)2.0mx7.5mx0.6m DEEP

RG 5/1.1 (26.3m³)3.5mx12.5mx0.6m

DEEPRG 4/4.1 (10.5m³)2.4mx7.3mx0.6m DEEP

RGCP 5/1.1LL 37.52ILOUT 36.29

TA

UR

OA

DR

IVE

SWMH 6/11050ø RC

LL 37.54ILOUT 35.41


ILIN 35.92 (DN100)ILIN 35.92 (DN100)

DN22

5 SW

94.

16m

@2.

6%

3.54

1.62

7.07

4.23

6.85

4.06

RGMH 1/2.11050ø RC

SCRUFFY DOMELL 36.50

ILOUT 35.26

DN375 SW 26.92m @0.9%DN375 SW 33.50m @1.9%

300

21 22 23

61

SWMH 1/21500ø RC

LL 36.902xILOUT 32.062xILOUT 32.222xILOUT 32.39


COOK DRIVE

DN375 SW

6.74m @0.9%

RG 1/2.1 (21.0m³)2.7mx13.0mx

0.6m DEEP

4.76 3.64

RG

LEGEND


EXISTING


STORMWATER CATCHPIT

ASBUILT

DN1350 SW

DN300



X.Xm







SHEET TITLE:



PROJECT TITLE:


TUAKAU

CHECKED:

APPROVED: DATE:

DATE:



MRR 26.06.19

RJP 26.06.19

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by: M

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27.0

6.19

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ISSUE STATUS:

2011-01-AB406 A

ASBUILT

0 2.5 5 7.5 10 12.5mSCALE BAR1:250@A3

SCALE: (A1/A3) 1:125 / 1:250





KEYPLAN

1 6

52

3 4 7 8

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SWMH 5/21050ø RCLL 40.03ILOUT 37.69ILIN 38.13ILIN 37.77ILIN 38.14 (DN100)

SWMH 4/51050ø RCLL 39.82ILOUT 37.98ILIN 38.37 (DN100)ILIN 38.09

RGCP 5/2.1LL 39.50

ILOUT 38.18

DN225 SW

63.66m @

1.2%

DN22

5 SW

87.

81m

@1.

8%

DN225 SW2.73m @2.2%

DN22

5 SW

94.

16m

@2.

6%

DN225 SW7.87m @0.6%

33

32

30

29

28

39

40

41

RG 4/5.1 (8.0m³)1.8mx7.4mx0.6mDEEP

RG 5/2.1 (7.2m³)1.7mx7.1mx0.6m DEEP

TA

UR

OA

DR

IVE

0.56

3.69

RGCP 4/5.1LL 39.51

ILOUT 38.15

2.52

3.74

SCHEDULE OF COORDINATESSW MANHOLES-GD2000

POINT No. mE mNSWMH 1/0 416269.23 757047.26

SWMH 1/1 416266.50 757048.79

SWMH 1/2 416279.91 757074.76

SWMH 1/3 416250.26 757090.35

SWMH 1/4 416215.31 757105.98

SWMH 1/5 416179.97 757124.26

SWMH 1/6 416213.56 757187.29

SWMH 1/7 416247.07 757250.07

SWMH 2/1 416259.47 757107.71

SWMH 2/2 416283.49 757152.69

SWMH 2/3 416315.70 757212.99

SWMH 2/4 416321.57 757215.35

SWMH 2/5 416376.27 757186.22

SWMH 3/1 416250.27 757112.89

SWMH 3/2 416274.06 757157.74

SWMH 3/3 416299.70 757205.63

SWMH 4/1 416303.80 757062.35

SWMH 4/2 416310.45 757069.87

SWMH 4/3 416325.50 757062.14

SWMH 4/4 416344.09 757052.47

SWMH 4/5 416388.61 757135.44

SWMH 5/1 416362.23 757059.17

SWMH 5/2 416403.61 757136.62

SWMH 5/3 416423.48 757197.10

SWMH 6/1 416347.23 757040.35

SWMH 6/2 416367.11 757027.14

SCHEDULE OF COORDINATESRAINGARDEN CATCHPITS-GD2000POINT No. mE mN

RG 1/2.1 416286.58 757073.79

RG 1/3.1 416246.12 757094.44

RG 1/5.1 416179.53 757129.94

RG 1/5.2 416191.64 757133.89

RG 1/6.1 416215.14 757192.38

RG 1/6.2 416207.56 757196.53

RG 1/7.1 416255.58 757252.25

RG 1/7.2 416250.35 757268.04

RG 2/1.1 416257.43 757101.37

RG 2/2.1 416284.02 757155.83

RG 2/4.1 416323.99 757215.49

RG 2/4.2 416329.98 757225.34

RG 3/1.1 416243.72 757108.85

RG 3/2.1 416276.54 757159.67

RG 4/4.1 416347.86 757055.20

RG 4/5.1 416390.80 757137.07

RG 5/1.1 416361.97 757050.03

RG 5/2.1 416399.09 757130.17

RG 6/1.1 416350.53 757039.90

SCHEDULE OF COORDINATESCATCHPITS-GD2000

POINT No. mE mNCP 0 416268.13 757046.12

CP 1 416274.42 757042.89

CP 2 416226.18 757066.69

RG

LEGEND


EXISTING


STORMWATER CATCHPIT

ASBUILT

DN1350 SW

DN300



X.Xm






200mm THICK 30MPAREINFORCED CONCRETE

(2 LAYERS 661 MESH)WITH ORIFICE HOLES

DN2050 PRECAST CONCRETECHAMBER

DN600 @ 0.6%OUTLET PIPE

DN50

ORI

FICE

DN30

0 O

RIFI

CE

OUTLET LEVEL 31.98

TOP OF TANK LEVEL 34.00

TANK BASE R.L. 31.84

DN37

5 O

RIFI

CE

I.L. 31.32

I.L. 31.88

RL 34.00

RL 33.33

RL 32.61

RL 31.88

RL 34.78RL 34.66

100mm COMPACTED SAND SUBBASEON 300mm GAP 65 ON GRIDTEX

40/40 GEOGRID WITH GEOTEXTILE

I.L. 32.05

I.L. 32.25

0.30


SHEET TITLE:



PROJECT TITLE:


TUAKAU

CHECKED:

APPROVED: DATE:

DATE:



MRR 26.06.19

RJP 26.06.19

Prin

ted

by: M

ATT@

27.0

6.19

//

File

path

: S:

\JO

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011

- HU

GHES

DEV

ELO

PMEN

TS T

UAK

AU\C

AD\A

SBU

ILTS

\201

1-01

-AB4

00.D

WG


ISSUE STATUS:

2011-01-AB407 A

ASBUILT

0 2.5 5 7.5 10 12.5mSCALE BAR1:250@A3

SCALE: (A1/A3) 1:125 / 1:250


KEYPLAN

1 6

52

3 4 7 8

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STORMWATER MANHOLE 1/1 DETAILSCALE: (A1/A3) 1:125/1:250

HUGHES DEVELOPMENTS LIMITED · 2019. 7. 25. · Keeping Our Waterways Clean .....14. 25 July 2019...

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Transcript of HUGHES DEVELOPMENTS LIMITED · 2019. 7. 25. · Keeping Our Waterways Clean .....14. 25 July 2019...