Glen - REC13/0146 Flood Study BSM 30 April 2014. Email 2 Attachment 2

                                                            DECK LEVEL 100.55 (10 YR FLOOD LEVEL)
                   0.25 M                0.4 M


  APPROACH FILL                                                                       APPROACH FILL



                        0.2 M DIA PILE           IL 98.63
                                                                         0.45 M DIA PILE




                  PROPOSED FOOTBRIDGE, LOOKING DOWNSTREAM
               (ONE 8.8 M CLEAR BRIDGE SPAN, PLUS THREE 2.2 M CLEAR BOARDWALK SPANS)




                                                                                                   Q5 STORAGE LEVEL
                                                                                                     Q1 STORAGE LEVEL
                   0.3 M BIO-STORAGE             0.7 M           0.4 M           0.1 M
                                                                                                                         WEIR


                                                                                                 N-3
                                                                                           1-O
                                                                                           SAND SURFACE AREA 200 M2



                                                                           1 M x 1M (INT) RISER BOX
                                                                           0.7 M WIDE x 0.4 M DEEP NOTCH IN ONE SIDE
           OUTLET PIPE, DIA AS REQ'D                                       SAFETY / TRASH RACK AS REQ'D
           TO CONVEY Q5 = 0.63 M3/SEC




                      BIO-BASIN SCHEMATIC, WESTERN TRIBUTARY


                                                                                     Q5 STORAGE LEVEL
             0.2 M BIO-STORAGE
                                                         0.2 M       0.07 M           Q1 STORAGE LEVEL

                                                                                                                        WEIR
                                                                                              -5
                                                                                     1 - ON
                                                                                  SAND SURFACE AREA 150 M2



                                                                   1 M x 1M (INT) RISER BOX
                                                                   1.0 M WIDE x 0.2 M DEEP NOTCH IN ONE SIDE
      OUTLET PIPE, DIA AS REQ'D                                    SAFETY / TRASH RACK AS REQ'D
      TO CONVEY Q5 = 0.35 M3/SEC




                            BIO-BASIN SCHEMATIC, EASTERN TRIBUTARY


                                                                                                                           28 Apr 2014


VALKEV PTY LTD - ELM STREET AND LAKE MACDONALD DRIVE, COOROY
FOOTBRIDGE AND BIO - BASIN SCHEMATICS                        FIGURE 12