Development Application Part 2 - Environmental & Stormwater Management Plans · OPW11/0335

                                                                                           UNDERDRAIN SCOUR POINT

                                                                           EXTENDED DETENTION DEPTH 200mm
EXCAVATION FOR WETLAND BED
   APPROX 350mm TO 2.05mRL                                                            BIORETENTION TRENCH BED
                                                                                 600mm DEEP 0.45mm FILTER MEDIA

                                                                                                OVERFLOW CHAMBER
GABION WALL
     1m WIDE
                                                                   OUTLET PIPEWORK
                                                               225mm UNSLOTTED PIPE




    GRAVEL PLANTING
              LAYER                      :^^,:^r.:^^.:^^%^i%^^.:^r^/i^/i^/i^/i^/i^/i^/i^/ice 3i^/i^/i^/i^/i^/i^! EXCAVAT ION DEPTH: 2.05mRL




                                                                                                                                                                                                         BIORETENTION TRENCH
                                                                                                                                                                                                         UNDERDRAIN
                                                                                                                                                                                                         150mm SLOTTED PIPE IN
                                                                                                                                                                                                         COARSE GRAVEL AGGREGATE




 NGL: 2.53mRL                            NGL: 2.48mRL                                                NGL: 2.44mRL                    MGL: 3.OOmRL




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                                                                                                                                  Simmonds & Bristow Pty. Ltd.                                          BIORETENTION BASIN
                                                                                                 7 OO UTS(AU                      WATFR & ENVIRONMENTAL ANALYSTS & CONSULTANTS                          AND WETLAND
                      STORMWATER TREATMENT                                       DESI180   TA    f OYUrr. I.W.h l.kwlrlnik^b
                                                                                                                                                                                                        SHORT CROSS-SECTION I>okmaovosii No,
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                      DESIGN                                                     EHEIXED
                                                                                                 1. Yr kaern 1.S&4
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                                              0 0)/12/10 INITIAL VERSION   T     Srxo.                                                                                                                                 CONCEPT ONLY
                                                                           Nit                                                                  Helping you make good dean water   A.G.N. 010 252 418
                                                                                 oA1E                                                                                                                   8101 "A          DATE 02/12/1