Council archive · source document
20220218 22 Grant SWMP · MCU22/0172
1 METER MAX. STAR PICKETS
PROVIDE WASH WATER FOR DROP INLET
TIMBER SLEEPER OR METAL WITH GRATE
TRUCKS EXITING SITE
GRID 100mm HIGH AND
500 - 600mm
MIN LENG WIRE OR STEEL MESH
SPACED AT 300mm CTS (14 GAUGE x 150mm WRAP FILTER
T H 10m OPENINGS) WHERE GEOTEXTILE CLOTH OVER GRATE
BERM 300 HIGH MIN
CONSTRUCTION SITE IS NOT SELF-SUPPORTING
WOVEN GEOTEXTILE 1.5m STAR
EXISTING ROADWAY PICKETS
AT MAX. 2.5m CENTRES
GEOTEXTILE FABRIC STAR PICKET SELF-SUPPORTING
FITTED WITH GEOTEXTILE
50-75mm GRAVEL BED SAFETY CAP OW
MIN 200mm THICK DIRECTION OF FL
RUNOFF FROM PAD DIRECTED SANDBAGS WOVEN GEOTEXTILE
TO SEDIMENT TRAP
RUNOFF WRAP FILTER
RUNOFF ON SOIL, 150mm x 100mm
TEMPORARY CONSTRUCTION VEHICLE EXIT WATER WITH CLOTH OVER GRATE
FLOW
WATER WITH TRENCH WITH
SCALE: N.T.S. WATERWAY SEDIMENT
SEDIMENT COMPACTED BACKFILL
AND ON ROCK, SET INTO
SURFACE CONCRETE
600mm MIN.
EXCAVATION
FILTERED SECTION DETAIL
FILTERED
WATER WATER
GEOTEXTILE
EARTH BANK EMBEDDED 150mm
MIN. 1.5m
INTO GROUND 20m MAX.
FOR DROP INLETS AT NON-SAG POINTS, GEOTEXTILE INLET FILTER TYPE B FLOW
SANDBAGS, EARTH BANK OR EXCAVATION SCALE N.T.S
USED TO CREATE ARTIFICIAL SAG POINT STAR PICKETS AT
MAX. 2.5m SPACINGS
GEOTEXTILE INLET FILTER CONSTRUCTION NOTES: TYPICAL
1. FABRICATE A SEDIMENT BARRIER MADE FROM GEOTEXTILE OR STRAW BALES.
2. PICKET SPACING TO BE A MAXIMUM 1.0m CENTRES. PLAN
3. IN WATERWAYS, ARTIFICIAL SAG POINTS CAN BE CREATED WITH SANDBAGS
OR EARTH BANKS AS SHOWN IN THE DRAWING.
4. DO NOT COVER THE INLET WITH GEOTEXTILES UNLESS THE DESIGN IS
DISTURBED DIRECTION 1.5m STAR PICKETS
ADEQUATE TO ALLOW FOR ALL WATERS TO BYPASS IT.
AREA OF FLOW AT MAX. 2.5m
GEOTEXTILE INLET FILTER A CENTRES
SCALE N.T.S
TIMBER SPACER KERB-SIDE
TO SUIT INLET
UNDISTURBED
AREAS
GRAVEL-FILLED WIRE
MESH OR GEOTEXTILE
"SAUSAGE"
OVERFLOW TIMBER SPACER
RUNOFF GRADIENT OF
WATER WITH TO SUIT CAN BE CONSTRUCTED ALL BATTER
DRAIN 1% TO 5%
SEDIMENT WITH OR WITHOUT GRADES 2(H):1(V)
CHANNEL SEDIMENT FENCE CONSTRUCTION NOTES:
MAX. STABILISE STOCKPILE SURFACE
DIRECTION O 1. CONSTRUCT SEDIMENT FENCES AS CLOSE AS POSSIBLE TO BEING PARALLEL
F FLOW EARTH BANK 2:1 TO THE CONTOURS OF THE SITE, BUT WITH SMALL RETURNS AS SHOWN IN THE
300mm MIN.
SEDIMENT AX.) SLO DRAWING TO LIMIT THE CATCHMENT AREA OF ANY ONE SECTION. THE
E (M PE
FLOW LOP (MA CATCHMENT AREA SHOULD BE SMALL ENOUGH TO LIMIT WATER FLOW IF
GRAVEL-FILLED WIRE FILTERED WATER 2 :1 S X.)
CONCENTRATED AT ONE POINT TO 50 LITRES PER SECOND IN THE DESIGN
MESH OR GEOTEXTILE STORM EVENT, USUALLY THE 10-YEAR EVENT.
2m MIN
150mm MIN
"SAUSAGE"
MESH & GRAVEL INLET FILTER CONSTRUCTION NOTES: NOTE: ONLY TO BE USED AS TEMPORARY SEDIMENT FENCE 2. CUT A 150mm DEEP TRENCH ALONG THE UPSLOPE LINE OF THE FENCE FOR
1. INSTALL FILTERS TO KERB INLETS ONLY AT SAG POINTS. BANK WHERE MAXIMUM UPSLOPE LENGTH THE BOTTOM OF THE FABRIC TO BE ENTRENCHED.
IS 80 METRES.
STOCKPILE CONSTRUCTION NOTES: 3. DRIVE 1.5m LONG STAR PICKETS INTO GROUND AT 2.5m INTERVALS (MAX.) AT
2. FABRICATE A SLEEVE MADE FROM GEOTEXTILE OR WIRE MESH LONGER THAN DIVERSION DRAIN CONSTRUCTION NOTES:
THE LENGTH OF THE INLET PIT AND FILL IT WITH 25mm TO 50mm GRAVEL. 1. PLACE STOCKPILES MORE THAN 2 (PREFERABLY 5) METRES FROM EXISTING THE DOWNSLOPE EDGE OF THE TRENCH. ENSURE ANY STAR PICKETS ARE
1. BUILD WITH GRADIENTS BETWEEN 1% AND 5%.
VEGETATION, CONCENTRATED WATER FLOW, ROADS AND HAZARD AREAS. FITTED WITH SAFETY CAPS.
3. FORM AN ELLIPTICAL CROSS-SECTION ABOUT 150mm HIGH x 400mm WIDE. 2. AVOID REMOVING TREES AND SHRUBS IF POSSIBLE - WORK AROUND THEM.
2. CONSTRUCT ON THE CONTOUR AS LOW, FLAT, ELONGATED MOUNDS. 4. FIX SELF-SUPPORTING GEOTEXTILE TO THE UPSLOPE SIDE OF THE POSTS
4. PLACE THE FILTER AT THE OPENING LEAVING AT LEAST A 100mm SPACE ENSURING IT GOES TO THE BASE OF THE TRENCH. FIX THE GEOTEXTILE WITH
3. ENSURE THE STRUCTURES ARE FREE OF PROJECTIONS OR OTHER
BETWEEN IT AND THE KERB INLET. MAINTAIN THE OPENING WITH SPACER 3. WHERE THERE IS SUFFICIENT AREA, TOPSOIL STOCKPILES SHALL BE LESS WIRE TIES OR AS RECOMMENDED BY THE MANUFACTURER. ONLY USE
IRREGULARITIES THAT COULD IMPEDE WATER FLOW.
BLOCKS. THAN 2 METRES IN HEIGHT. GEOTEXTILE SPECIFICALLY PRODUCED FOR SEDIMENT FENCING. THE USE OF
4. BUILD THE DRAINS WITH CIRCULAR, PARABOLIC OR TRAPEZOIDAL SHADE CLOTH FOR THIS PURPOSE IS NOT SATISFACTORY.
5. FORM A SEAL WITH THE KERB TO PREVENT SEDIMENT BYPASSING THE FILTER. 4. WHERE THEY ARE TO BE PLACE FOR MORE THAN 10 DAYS, STABILISE
CROSS-SECTIONS, NOT "V" SHAPED.
FOLLOWING THE APPROVED ESCP OR SWMP TO REDUCE THE C-FACTOR TO 5. JOIN SECTIONS OF FABRIC AT A SUPPORT POST WITH A 150mm OVERLAP.
6. SANDBAGS FILLED WITH GRAVEL CAN SUBSTITUTE FOR THE MESH OR LESS THAN 0.10.
5. ENSURE BANKS ARE PROPERLY COMPACTED TO PREVENT FAILURE.
GEOTEXTILE PROVIDING THEY ARE PLACED SO THAT THEY CAN FIRMLY ABUT 6. BACKFILL THE TRENCH OVER THE BASE OF THE FABRIC AND COMPACT IT
EACH OTHER AND SEDIMENT-LADEN WATERS CANNOT PASS BETWEEN. 5. CONSTRUCT EARTH BANKS ON THE UPSLOPE SIDE TO DIVERT WATER AROUND THOROUGHLY OVER THE GEOTEXTILE.
6. COMPLETE PERMANENT OR TEMPORARY STABILISATION WITHIN 10 DAYS OF
STOCKPILES AND SEDIMENT FENCES 1 TO 2 METRES DOWNSLOPE.
CONSTRUCTION.
MESH & GRAVEL INLET FILTER DIVERSION DRAIN STOCKPILES SEDIMENT FENCE
SCALE N.T.S SCALE N.T.S SCALE N.T.S SCALE: N.T.S.
CLIENT DETAILS: PROJECT ADDRESS: APPROVED BY: PROJECT NAME:
PROPOSED RESIDENTIAL DUPLEX
INTEGRA PARTNERSHIPS TITLE: STATUS:
22 GRANT STREET EROSION AND SEDIMENT FOR APPROVAL - NOT FOR
© ABN 89 647 469 707
NOOSA HEADS, QLD, 4567 NATHAN WAGSTAFF CONTROL DETAILS CONSTRUCTION
75 NOOSA DRIVE RPEQ: 20693
SCALE:
NOOSA HEADS, QLD 4567 CPEng
+61 7 5211 1003 REV DATE DESCRIPTION DWN CHK APP
NOT TO SCALE DATE: 23/09/2022
DRAWING NUMBER: PROJECT NUMBER: SHEET REV:
SIZE:
RECORCONSULTING.COM REVISIONS
DO NOT SCALE, IF IN DOUBT ASK
031 20220218 A1 01
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