Flood Study BSM Job2013 08 Date 15 Sep 2014 Revised

                                                            DECK LEVEL 100.68 (10 YR FLOOD LEVEL)
                                           0.4 M

10 YR FLOOD LEVEL                                                                                             10 YR FLOOD LEVEL
                     APPROACH FILL                                           APPROACH FILL


                                                   IL 98.63
                                                                           0.45 M DIA PILE


                      PROPOSED FOOTBRIDGE, LOOKING DOWNSTREAM
                    (8.8 M CLEAR SPAN) (BRIDGE OPENING AND ENTRY / EXIT TO BE ROCK-PROTECTED)




                                                                                                      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

                                                                                       1-    ON - 5
                                                                                    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


                                                                                                                              15 Sep 2014


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