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EngSWMP
Attached to the e-mail Response to Information Request MCU16/0079 (email 2 of 3).
MATERIALS DAM A MINIMUM 1/3 AND MAXIMUM 1/2 FENCE THE TWO STAKES TIED TOGETHER WITH WIRE; MAINTENANCE
HEIGHT, AND EXTENDING AT LEAST 1.5m UP OR
FABRIC: POLYPROPYLENE, POLYAMIDE, THE SLOPE. (ii) OVERLAP THE FABRIC TO THE NEXT 1. INSPECT THE SEDIMENT FENCE AT LEAST
NYLON, POLYESTER, OR POLYETHYLENE ADJACENT SUPPORT POST. WEEKLY AND AFTER ANY SIGNIFICANT RAIN.
WOVEN OR NON-WOVEN FABRIC, AT LEAST 4. ENSURE THE EXTREME ENDS OF THE MAKE NECESSARY REPAIRS IMMEDIATELY.
700mm IN WIDTH AND A MINIMUM UNIT WEIGHT FENCE ARE TURNED UP THE SLOPE AT LEAST 11. SECURELY ATTACH THE FABRIC TO THE
OF 140g/m2. ALL FABRICS TO CONTAIN 1.5m, OR AS NECESSARY, TO MINIMISE WATER SUPPORT POSTS USING 25 X 12.5mm STAPLES, 2. REPAIR ANY TORN SECTIONS WITH A
ULTRAVIOLET INHIBITORS AND STABILISERS BYPASSING AROUND THE FENCE. OR TIE WIRE AT MAXIMUM 150mm SPACING. CONTINUOUS PIECE OF FABRIC FROM POST
TO PROVIDE A MINIMUM OF 6 MONTHS OF TO POST.
USEABLE CONSTRUCTION LIFE (ULTRAVIOLET 5. ENSURE THE SEDIMENT FENCE IS 12. SECURELY ATTACH THE FABRIC TO THE
STABILITY EXCEEDING 70%). INSTALLED IN A MANNER THAT AVOIDS THE SUPPORT WIRE/MESH (IF ANY) AT A MAXIMUM 3. WHEN MAKING REPAIRS, ALWAYS RESTORE
CONCENTRATION OF FLOW ALONG THE SPACING OF 1m. THE SYSTEM TO ITS ORIGINAL
FABRIC REINFORCEMENT: WIRE OR STEEL FENCE, AND THE UNDESIRABLE DISCHARGE CONFIGURATION UNLESS AN AMENDED
MESH MINIMUM 14-GAUGE WITH A MAXIMUM OF WATER AROUND THE ENDS OF THE FENCE. 13. ENSURE THE COMPLETED SEDIMENT LAYOUT IS REQUIRED OR SPECIFIED.
MESH SPACING OF 200mm. FENCE IS AT LEAST 450mm, BUT NOT MORE
6. IF THE SEDIMENT FENCE IS TO BE THAN 700mm HIGH. IF A SPILL-THOUGH WEIR 4. IF THE FENCE IS SAGGING BETWEEN
SUPPORT POSTS/STAKES: 1500mm2 (MIN) INSTALLED ALONG THE EDGE OF EXISTING IS INSTALLED, ENSURE THE CREST OF THE STAKES, INSTALL ADDITIONAL SUPPORT
HARDWOOD, 2500mm2 (MIN) SOFTWOOD, OR TREES, ENSURE CARE IS TAKEN TO PROTECT WEIR IS AT LEAST 300mm ABOVE GROUND POSTS.
1.5kg/m (MIN) STEEL STAR PICKETS SUITABLE THE TREES AND THEIR ROOT SYSTEMS LEVEL.
FOR ATTACHING FABRIC. DURING INSTALLATION OF THE FENCE. DO 5. REMOVE ACCUMULATED SEDIMENT IF THE
NOT ATTACH THE FABRIC TO THE TREES. 14. BACKFILL THE TRENCH AND TAMP THE FILL SEDIMENT DEPOSIT EXCEEDS A DEPTH OF 1/3
INSTALLATION TO FIRMLY ANCHOR THE BOTTOM OF THE THE HEIGHT OF THE FENCE.
7. UNLESS DIRECTED BY THE SITE FABRIC AND MESH TO PREVENT WATER FROM
1. REFER TO APPROVED PLANS FOR LOCATION, SUPERVISOR OR THE APPROVED PLANS, FLOWING UNDER THE FENCE. 6. DISPOSE OF SEDIMENT IN A SUITABLE
EXTENT, AND REQUIRED TYPE OF FABRIC (IF EXCAVATE A 200mm WIDE BY 200mm DEEP MANNER THAT WILL NOT CAUSE AN EROSION
SPECIFIED). IF THERE ARE QUESTIONS OR TRENCH ALONG THE PROPOSED FENCE LINE, ADDITIONAL REQUIREMENTS FOR THE OR POLLUTION HAZARD.
PROBLEMS WITH THE LOCATION, EXTENT, PLACING THE EXCAVATED MATERIAL ON THE INSTALLATION OF A SPILL-THROUGH WEIR
FABRIC TYPE, OR METHOD OF INSTALLATION UP-SLOPE SIDE OF THE TRENCH. 7. REPLACE THE FABRIC IF THE SERVICE LIFE
CONTACT THE ENGINEER OR RESPONSIBLE 1. LOCATE THE SPILL-THROUGH WEIR SUCH OF THE EXISTING FABRIC EXCEEDS
ON-SITE OFFICER FOR ASSISTANCE. 8. ALONG THE LOWER SIDE OF THE TRENCH, THAT THE WEIR CREST WILL BE LOWER THAN 6-MONTHS.
APPROPRIATELY SECURE THE STAKES INTO THE GROUND LEVEL AT EACH END OF THE
2. TO THE MAXIMUM DEGREE PRACTICAL, AND THE GROUND SPACED NO GREATER THAN 3m FENCE. REMOVAL
WHERE THE PLANS ALLOW, ENSURE THE IF SUPPORTED BY A TOP SUPPORT WIRE OR
FENCE IS LOCATED: WEIR MESH BACKING, OTHERWISE NO 2. ENSURE THE CREST OF THE 1. WHEN DISTURBED AREAS UP-SLOPE OF THE
(i) TOTALLY WITHIN THE PROPERTY GREATER THAN 2m. SPILL-THROUGH WEIR IS AT LEAST 300mm THE SEDIMENT FENCE ARE SUFFICIENTLY
BOUNDARIES; GROUND ELEVATION. STABILISED TO RESTRAIN EROSION, THE
(ii) ALONG A LINE OF CONSTANT ELEVATION 9. IF SPECIFIED, SECURELY ATTACH THE FENCE MUST BE REMOVED.
WHEREVER PRACTICAL; SUPPORT WIRE OR MESH TO THE UP-SLOPE 3. SECURELY TIE A HORIZONTAL CROSS
(iii) AT LEAST 2m FROM THE TOE OF ANY SIDE OF THE STAKES WITH THE MESH MEMBER (WEIR) TO THE SUPPORT POSTS/ 2. REMOVE MATERIALS AND COLLECTED
FILLING OPERATIONS THAT MAY RESULT IN EXTENDING AT LEAST 200mm INTO THE STAKES EACH SIDE OF THE WEIR. CUT THE SEDIMENT AND DISPOSE OF IN A SUITABLE
SHIFTING SOIL/FILL DAMAGING THE FENCE. EXCAVATED TRENCH. ENSURE THE MESH AND FABRIC DOWN THE SIDE OF EACH POST AND MANNER THAT WILL NOT CAUSE AN EROSION
FABRIC IS ATTACHED TO THE UP-SLOPE SIDE FOLD THE FABRIC OVER THE CROSS MEMBER OR POLLUTION HAZARD.
3. INSTALL RETURNS WITHIN THE FENCE AT OF THE STAKES EVEN WHEN DIRECTING A AND APPROPRIATELY SECURE THE FABRIC.
MAXIMUM 20m INTERVALS IF THE FENCE IS FENCE AROUND A CORNER OR SHARP 3. REHABILITATE/REVEGETATE THE
INSTALLED ALONG THE CONTOUR, OR 5 TO CHANGE OF DIRECTION. 4. INSTALL A SUITABLE SPLASH PAD AND/OR DISTURBED GROUND AS NECESSARY TO
10m MAXIMUM SPACING (DEPENDING ON CHUTE IMMEDIATELY DOWN-SLOPE OF THE MINIMISE THE EROSION HAZARD.
Catchments & Creeks Pty Ltd
SLOPE) IF THE FENCE IS INSTALLED AT AN 10. WHEREVER POSSIBLE, CONSTRUCT THE SPILL-THROUGH WEIR TO CONTROL SOIL
ANGLE TO THE CONTOUR. THE ‘RETURNS’ SEDIMENT FENCE FROM A CONTINUOUS ROLL EROSION AND APPROPRIATELY DISCHARGE
SHALL CONSIST OF EITHER: OF FABRIC. TO JOIN FABRIC EITHER: THE CONCENTRATED FLOW PASSING OVER
(i) V-SHAPED SECTION EXTENDING AT LEAST (i) ATTACH EACH END TO TWO OVERLAPPING THE WEIR.
1.5m UP THE SLOPE; OR STAKES WITH THE FABRIC FOLDING AROUND Drawn: Date:
(ii) SANDBAG OR ROCK/AGGREGATE CHECK THE ASSOCIATED STAKE ONE TURN, AND WITH
GMW May-10 Sediment Fence ESC-05
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