EngSWMP

                                                                                                                                                                    Building site                 2 m (min)
                                                               Minimu                                                         Flow control berm incorporated
                                                                     m leng                                                   into the rock pad if the pad
                              40 − 75 mm                                   th 10 m
                                                                                     (min)                                    receives runoff from the building
                              crushed rock                     300 mm (min)
                                                                                                                              site (location may vary)




                                                                                                                                                                                     10 m (min)
                                                 150 − 200 mm                                                                                                                                                   Land slope

                                                                              Width 2.0 m (min)                     da
                                                                                                                         ry                         Kerb
                                                                                                           o   un
                                                                                                        yb
                                                                                             p   er t               Footpath
                              Up-slope runoff directed                                   Pro
                                                                                                                                                                                                              Make safe for
                              to an appropriate                                                                                        Roadway                         Footpath                               pedestrian traffic
                              sediment trap
                                Geotextile filter cloth (mandatory             Make safe for
                                when working on clayey soils)                  pedestrian traffic                                                                                                 ROADWAY

                                                         (a) Rock entry/exit pad for building sites
                                                                                                                                                                    (b) Rock pad sloping away from road
                              CONSTRUCTION NOTES:                         STIFF-BRISTLED BROOM, AND THEN BY A
                                                                          MECHANICAL VACUUM UNIT, IF AVAILABLE.
                              MATERIALS
                                                                          3. IF NECESSARY FOR SAFETY REASONS, THE                                                   Building site                 2 m (min)
                              ROCK: WELL GRADED, HARD, ANGULAR,           ROADWAY SHALL ONLY BE WASHED CLEAN
                              EROSION RESISTANT ROCK, NOMINAL             AFTER ALL REASONABLE EFFORTS HAVE BEEN
                              DIAMETER OF 40 TO 75mm.                     TAKEN TO SHOVEL AND SWEEP THE MATERIAL
                                                                          FROM THE ROADWAY.
                              FOOTPATH STABILISING AGGREGATE: 25 TO                                                                                                                                             Land slope




                                                                                                                                                                                  10 m (min)
                              50mm GRAVEL OR AGGREGATE (IF REQUIRED).     4. WHEN THE VOIDS BETWEEN THE ROCK
                                                                          BECOMES FILLED WITH MATERIAL AND THE
                              GEOTEXTILE FABRIC: HEAVY-DUTY,              EFFECTIVENESS OF THE ROCK PAD IS
                              NEEDLE-PUNCHED, NON-WOVEN FILTER            REDUCED TO A POINT WHERE SEDIMENT IS
                                                                                                                                                                                                              Sediment fence
                              CLOTH (‘BIDIM’ A24 OR EQUIVALENT).          BEING TRACKED OFF THE SITE, A NEW 100mm
                                                                          LAYER OF ROCK MUST BE ADDED AND/OR THE
                              INSTALLATION                                ROCK PAD MUST BE EXTENDED.                                                                                                          Make safe for
                                                                                                                                                                       Footpath
                                                                                                                                                                                                              pedestrian traffic
                              1. INSPECT ALL SITE ENTRY AND EXIT POINTS   5. ENSURE ANY ASSOCIATED DRAINAGE
                              PRIOR TO FORECAST RAIN, DAILY DURING        CONTROL MEASURES (e.g. FLOW CONTROL
                              EXTENDED PERIODS OF RAINFALL, AFTER         BERM) ARE MAINTAINED IN ACCORDANCE
                              RUNOFF-PRODUCING RAINFALL, OR               WITH THEIR DESIRED OPERATIONAL                                                                                          ROADWAY
                              OTHERWISE AT FORTNIGHTLY INTERVALS.         CONDITION.
Catchments & Creeks Pty Ltd




                              2. IF SAND, SOIL, SEDIMENT OR MUD IS        6. DISPOSE OF SEDIMENT AND DEBRIS IN A
                              TRACKED OR WASHED ONTO THE ADJACENT         MANNER THAT WILL NOT CREATE AN EROSION                                                    (c) Rock pad sloping towards the road
                              SEALED ROADWAY, THEN SUCH MUST BE           OR POLLUTION HAZARD.
                              PHYSICALLY REMOVED, FIRST USING A                                                                                Drawn:       Date:
                              SQUARE-EDGED SHOVEL, AND THEN A
                                                                                                                                                 GMW         May-10 Rock Pads for Building Sites                             ESC-01