Response to Information Request MCU16/0117 & OPW16/0212

 

 

 

 

OPEN CONCRETE BLOCKS

SEDIMENT AND EROSION
CONTROL DETAILS

 

 

 

 

 

ALL EROSION AND SEDIMENT IN ACCORDANCE WITH IN ACCORDANCE WITH
WITH MAROON BOOK MANUAL FOR EROSION AND SEDIMENT CONTROL

UNDISTURBED AREA

 

 

 

GRAVEL FILTER

SANDBAG OVERLAP
ONTO KERB

4.0m MIN.

 
 

GEOTEXTILE

_- STAKES.
FILTER FABRIQ._

   

 

 

 

 

RUNOFF WATER
WITH SEDIMENT

 

 

 

 

 

 

 

 

 

 

or

 

 

ROP

 

   

RR

 

 

 

 

 

 

 

 

 

 

600mm (NOM) GAP
BETWEEN SAND BAGS

 

GEOTEXTILE

 

 

 

 

 

 

 

 

 

 

ACT AS SPILLWAY
THREE LAYERS OF

SANDBAGS WITH ENDS
OVERLAPPED.

DOWN STREAM GULLY PROTECTION DETAILS

NOT TO SCALE

 

 

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GEOTEXTILE INLET FILTER

GEOTEXTILE INLET FILTER CONSTRUCTION NOTES

1, FABRICATE A SEDIMENT BARRIER FROM GEOTEXTILE.
2. FOLLOW DETAIL FOR SEDIMENT FENCE FOR GEOFABRIC
INSTALLATION. REDUCE PICKET SPACINGS TO 1m CENTRES.

BURY THE TOP OF THE PLASTIC 3. DO NOT COVER THE INLET WITH GEOTEXTILE UNLESS THE
IN TRENCH MIN 300mm DEEP. DESIGN IS ADEQUATE TO ALLOW FOR ALL WATERS TO
STAPLE AT 150mm CENTRES. BYPASS IT.
COMPACT SOIL OVER’ BLANKET

CENTRELINE SECTION AT POINTS “A aa

FILL TRENCH WITH SOIL —
AND COMPACT
OVERLAP—BURY UPPER END OF
LOWER BLANKET AS IN “A”. OVERLAP
END OF TOP BLANKET 300mm AND
STAPLE AT 150 CRS.

jam FLOW

STAPLES: 8 GAUGE
(4mm) WIRE

    
 
       
  

Geotextle fabri, —~

Bidum U34 or similar
Unbound pavement material (gravel) to Grading

B, Table 9 of QT Specification MRS11.05,
exclude material finer than sieve 2.36mm

a

Runoff from pad directed to sediment trap

anne / PORARY NTRY, NT_TI
* Not to Scale
CATTLE GRID 3.0m NOM WIDTH
Se OND OF SET 300mm ABOVE GROUND
AT GRO Oe CONSTRUCTION SITE

GEOFABRIC FABRIC, BIDIM A34
STAPLE OUTSIDE EDGES OR SIMILAR

AT 300mm CRS.

 

a

e
RUNOFF TO BE DIRECTED TO A SEDIMENT TRAP,
REFER STANDARD DRAWING D—0041.

TEMPORARY ENTRY/EXIT

CLEAN/DIRTY DIVERSION DRAINS

DIVERSION DRAIN CONSTRUCTION NOTES

. REMOVE ANY ROCKS, CLODS, STICKS OR GRASS FROM THE SURFACE BEFORE LAYING PLASTIC.
ENSURE THAT TOPSOIL IS AT LEAST 75mm DEEP.
ENSURE PLASTIC WILL BE CONTINUOUSLY IN CONTACT WITH THE SOIL BY GRADING THE SURFACE
CAREFULLY FIRST.
LAY FABRIC IN "SHINGLE FASHION”, WITH THE END OF EACH UPSTREAM ROLL OVERLAPPING THOSE
DOWNSTREAM. ENSURE EACH ROLL IS ANCHORED PROPERLY AT ITS UPSLOPE END.
ENSURE FULL WIDTH OF FLOW CHANNEL IS COVERED BY THE PLASTIC.

TEMPORARY ENTRY/EXIT CONSTRUCTION NOTES

STRIP THE TOPSOIL, LEVEL THE SITE AND COMPACT THE SUBGRADE.

COVER THE AREA WITH NEEDLE-PUNCHED GEOTEXTILE.

. CONSTRUCTION A 200mm THICK PAD OVER THE GEOTEXTILE USING ROAD BASE OR 30mm.
} ENSURE THE STRUCTURE IS AT LEAST 15m LONG OR TO BUILDING ALIGNMENT AND AT
LEAST 3m_WIDE.

. WHERE SEDIMENT FENCE JOINS ONTO THE STABILISED ACCESS, CONSTRUCTION A HUMP OR
GRATE IN THE STABILISED ACCESS TO DIVERT WATER TO THE SEDIMENT FENCE.

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STAKES DRIVEN INTO GROUND —

 

DISTURBED
AREA

 

 
 

 

 

 

 

 

 

    

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1.5m TIMBER STAKES
‘AT MAX 2.5m CENTRES

NV DIRECTION OF’ FLO}

 

 

HOLD IN PLACE
WITH SAND BAGS

GEOTEXTILE FILTER SOCK
FILLED WITH 25MM GRAVEL

KERB INLET PIT SEDIMENT BARRIER

1.5m TIMBER STAKES
AT MAX 2.5m CENTRES

‘SELF—SUPPORTING
GEOTEXTILE

  
  
 
 

ON SOIL, 150mm x 100mm
TRENCH WITH COMPACTED
BACKFILL AND ON ROCK, SET
INTO SURFACE CONCRETE

SECTION DETAIL

KERB INLET PIT SEDIMENT BARRIER
CONSTRUCTION NOTES

1

FABRICATE A SLEEVE FROM GEOTEXTILE OR WIRE MESH
LONGER THAN THE LENGTH OF THE INLET PIT AND FILL
WITH 25mm TO 50mm GRAVEL.

FORM AN ELLIPTICAL CROSS-SECIRCUITION APPROX. 150mm
HIGH, 400mm WIDE.

PLACE THE FILTER AT OPENING LEAVING AT LEAST
100mm BETWEEN KERB INLET AND SLEEVE. MAINTAIN
OPENING WITH SPACER BLOCKS.

FORM A SEAL WITH KERB TO PREVENT SEDIMENT
BYPASS.

SANDBAGS FILLED WITH GRAVEL CAN SUBSTITUTE FOR
THE MESH OR GEOTEXTILE PROVIDED THEY ARE PLACED
SO THAT THEY FIRMLY ABUT EACH OTHER AND.
SEDIMENT LADEN WATERS CANNOT PASS BETWEEN.

SEDIMENT FENCE

   

NOTE: POINTS @ AT SAME
ELEVATION:

—
SEDIMENT FENCES

Sediment Fence installed across the contour

— uncontoured concentration of flow should be avoided

NOT TO REGULAR SCALE

 

 

SEDIMENT FENCE CONSTRUCTION NOTES

1. _ CONSTRUCTION SEDIMENT FENCES AS CLOSE AS
POSSIBLE TO BEING PARALLEL TO THE CONTOURS OF THE
SITE, BUT WITH SMALL RETURNS. THE CATCHMENT AREA
SHOULD BE SMALL ENOUGH TO LIMIT WATER FLOW IF
CONCENTRATED AT ONE POINT.

2. CUT A 150—mm DEEP TRENCH ALONG THE UPSLOPE
LINE OF THE FENCE FOR THE BOTTOM OF THE FABRIC TO
BE — ENTRENCHED.

3. DRIVE TIMBER STAKES INTO GROUND AT 2.5m.
INTERVALS (MAX) AT THE DOWNSLOPE EDGE OF THE TRENCH.
4. FIX SELF-SUPPORTING GEOTEXTILE TO THE UPSLOPE
SIDE OF THE POSTS ENSURING IT GOES TO THE BASE OF
THE TRENCH. FIX THE GEOTEXTILE WITH WIRE RECOMMENDED
BY THE MANUFACTURER. THE USE OF SHADE CLOTH FOR
THIS PURPOSE IS NOT SATISFACTORY.

5. JOIN SECTIONS OF THE FABRIC AT A SUPPORT POST
WITH A 150mm OVERLAP.

6. BACKFILL THE TRENCH OVER THE BASE OF THE FABRIC
AND COMPACT IT THOROUGHLY OVER THE GEOTEXTILE.

PIY

LINDSAY CONSULTING 2
CLI

REO 4928.

 

   
 

OFF. 26/82 PARKER ATREET, MARDOGAYDORE PH 54 792 118

 

THIS DRAWING REMAINS/THE PROPERTY OF
LINDSAY CONSULTING PTY LTD AND IS FOR
THE SOLE USE OF THE CLIENT. NO PART
MAY BE USED IN PART OR WHOLE WITHOUT
PRIOR EXPRESS WRITTEN CONSENT OF
LINDSAY CONSULTING PTY LTD

 

CLIENT AND PROJECT DESCRIPTION
T ROSSITER & S MURPHY
PROPOSED RESIDENCES

LOT 1 (SP248165) OPAL ST
COOROY

 

DRAWING TITLE
EROSION CONTROL

 

SCALES

 

Orig, 1200

 

SURVEY DATUM

 

ASSOCIATED CONSULTANTS

 

 

REVISION LIST
A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ORIGINAL ISSUE 15/9/2016
B_| AMENDED O12 16
(Computer File
160604FP.DWG
DRAWING NUMBER SHEET] REV.

 

 

 

16-0604-C3 3|B