EngSWMP

                              MATERIALS                             (ii) EACH SOCK EXTENDS UP THE          WASHED CLEAN AFTER ALL REASONABLE                    4. ALL SYNTHETIC (PLASTIC) MESH OR
                                                                    CHANNEL BANKS SUCH THAT THE CREST      EFFORTS HAVE BEEN TAKEN TO SHOVEL                    OTHER NON READILY BIODEGRADABLE
                              SOCKS: MINIMUM 200mm DIAMETER                                                                                                     MATERIAL MUST BE REMOVED FROM THE
                                                                    OF THE SOCK AT ITS LOWEST POINT IS     AND SWEEP THE MATERIAL FROM THE
                              SYNTHETIC OR BIODEGRADABLE TUBES                                                                                                  SITE ONCE THE SLOPE OR DRAIN IS
                                                                    LOWER THAN GROUND LEVEL AT EITHER      SURFACE.
                              MANUFACTURED FROM NON-WOVEN OR                                                                                                    STABILISED, OR THE SOCKS HAVE
                                                                    END OF THE SOCK.
                              COMPOSITE FABRIC SUITABLE FOR THE                                                                                                 DETERIORATED TO A POINT WHERE THEY
                                                                                                           3. DISPOSE OF COLLECTED SEDIMENT IN
                              ‘FILTRATION’ OF COARSE SEDIMENTS.                                                                                                 ARE NO LONGER PROVIDING THEIR
                                                                    4. IF STAKES ARE REQUIRED TO ANCHOR    A SUITABLE MANNER THAT WILL NOT
                              FILL MATERIAL: STRAW, CANE MULCH,     THE SOCKS, THEIR SPACING DOES NOT      CAUSE AN EROSION OR POLLUTION                        INTENDED DRAINAGE OR SEDIMENT
                              COMPOSTED MATERIAL (AS4454),          EXCEEDING 1.2m OR SIX TIMES THE        HAZARD.                                              CONTROL FUNCTION.
                              COARSE SAND, OR CLEAN AGGREGATE.      SOCK DIAMETER (WHICHEVER IS THE
                              STAKES: MINIMUM 25 x 25mm TIMBER.     LESSER). A MAXIMUM STAKE SPACING OF           Filter socks overlap
                                                                    0.3m APPLIES WHEN USED TO FORM                onto kerb
                                                                                                                                                  4.0 m (min)
                              INSTALLATION                          CHECK DAMS.
                              1. REFER TO APPROVED PLANS FOR                                                      Sediment
                              LOCATION AND INSTALLATION DETAILS.    MAINTENANCE
                                                                    1. INSPECT ALL FILTER SOCKS PRIOR TO          pond
                              IF THERE ARE QUESTIONS OR PROBLEMS
                              WITH THE LOCATION, DIMENSIONS OR      FORECAST RAIN, DAILY DURING
                              METHOD OF INSTALLATION CONTACT THE    EXTENDED PERIODS OF RAINFALL,
                                                                    AFTER SIGNIFICANT RUNOFF                    Run-off
                              ENGINEER OR RESPONSIBLE ON-SITE                                                                                                   1 m (max) on public roads
                              OFFICER FOR ASSISTANCE.               PRODUCING STORMS OR OTHERWISE AT
                                                                    WEEKLY INTERVALS.
                              2. ENSURE THE SOCKS ARE PLACED
                              INDIVIDUALLY OR COLLECTIVELY (AS A    2. REPAIR OR REPLACE DAMAGED                                               Bypass flow
                              SINGLE SEDIMENT TRAP) SUCH THAT:      SOCKS.
                              (i) LEAKAGE AROUND OR UNDER THE                                                                (a) On-grade kerb inlet sediment trap
                              SOCKS IS MINIMISED;                   3. THE BULK OF THE SEDIMENT
                              (ii) ADJOINING SOCKS ARE TIGHTLY      COLLECTED BEHIND THE FILTER SOCKS                                                            Filter socks may need to fully surround
                              BUTTED OR OVERLAPPED AT LEAST         SHOULD BE REMOVED BY SHOVEL AFTER                         PVC pipe spacers                   the inlet to intercept sediment runoff
                              450mm;                                EACH STORM EVENT.                                                                            from the road and verge
                              (iii) THE SURFACE AREA OF POTENTIAL
                              WATER PONDING UP-SLOPE OF EACH        4. REMOVE COLLECTED SEDIMENT AND
                              SEDIMENT TRAP IS MAXIMISED;           DISPOSE OF IN A SUITABLE MANNER
                              (iv) TO THE MAXIMUM DEGREE            THAT WILL NOT CAUSE AN EROSION OR
                              PRACTICAL, ALL SEDIMENT-LADEN         POLLUTION HAZARD.
                              WATER WILL PASS THROUGH THE
                              FORMED POND BEFORE FLOWING OVER       REMOVAL
                              THE DOWN-SLOPE END OF THE             1. ALL SAND, SOIL, SEDIMENT OR MUD
                              SEDIMENT TRAP.                        MUST BE PHYSICALLY REMOVED FROM                          Filter sock
                                                                    SEALED SURFACES, FIRST USING A
                              3. WHEN PLACED ACROSS THE INVERT      SQUARE-EDGED SHOVEL, AND THEN A            Gully grate wrapped in non-woven filter fabric                 Side inlet remains open
                                                                    STIFF-BRISTLED BROOM, AND THEN BY A
Catchments & Creeks Pty Ltd




                              OF MINOR DRAINS, ENSURE THE SOCKS                                                          (minimum, bidim A34 or equivalent)
                              ARE PLACED SUCH THAT:                 MECHANICAL VACUUM UNIT, IF
                              (i) THE CREST OF THE DOWNSTREAM       AVAILABLE.
                                                                                                                                      (b) Sag inlet sediment trap
                              SOCK IS LEVEL WITH THE CHANNEL
                              INVERT AT THE IMMEDIATE UPSTREAM      2. IF NECESSARY FOR SAFETY REASONS,             Drawn:             Date:
                              SOCK (IF ANY);                        THE SEALED SURFACE SHALL ONLY BE
                                                                                                                      GMW                  Dec-09 Kerb Inlet Sediment Traps                       ESC-03