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Stormwater Management Plan -OPW (A) · OPW25/0042

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11.8
                                                                                                                                                                                                                                                                                                                                                                   RL
                                                                                                                                                        12




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ALL ROOFWATER TO BE PIPED
                                                                                                                                                                                                                                                                                                                                                                       14




                                                                                                                      13
                                                                                                                                               Ex

                                                                                                                                                          .78




                                                                                                                                                                                                                                         RL




                                                                                                                                                                                                                                                                                                                                                                        .75
                                                                                                                                                RL




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              18
                                                                                                                                                                                RL




                                                                                                                                                                                                                                           13




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       13
                                                                                                                                                                                                                                                                                                                                        14.40



                                                                                                                                                                                                                                                                                                                                                        14.60
                                                                                                                                                                                                                                                                                                              14.20
                                                                                                                                                    12




                                                                                                                                                                                                                                                                    13.80



                                                                                                                                                                                                                                                                                        14.00
                                                                                                                                                                                                                                                 .70
                                                                                                                                                                                   12.9
                                                                                                                                                     .83




                                                                                                                                                                                                                                                                                                                                                                                                                                         14
                                                                                                                                                                                           6




                                                                                                                                                                                                                                 W




                                VERGE/FOOTPATHS TO BE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   TO RIP'S/RWHT VIA SEALED
                                                                                                                      SE
                                                                                                                            xR




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         20
                                                                                                                                                                                           8                                                                                           EXISTING      PADMOUNT
                                                                                                                                L1




                                                                                                                                                                                                                                                                                          14.00
                                REPROFILED TO SUIT
                                                                                                                                 2.6




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  RL
                                                                                                                                                                                                                                                                                                                                                                                                                                                   RL
                                                                                                                                     79




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              D
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        12
                                                                                                                                                                                                                                                                                                                                                                                                                                                    12
                                                                                                                                                                                                                                                 13




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   PIPE SYSTEM TO HYDRAULIC

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           .0
                                                                                                                                                                                                                                                                                       TRANSFORMER
                                                                                                                                                                                                                                                                                                                                                                                                                                                        .0
                                                                                                                                                                                                                                                       .5




                                OVERLAND FLOW PATH LEVELS                                                                                                                                  1                                                                                                                                                                                                                                                                                                                                         13
                                                                                                                                               Ex




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       S
                                                                                                                                                    RL
                                                                                                                                                     12
                                                          W




                                                                                                                                                                                                                                                                                       FFL13.5= 13.0
                                               S




                                                                                                                                                         .26
                                                                                                                                                           2




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   CONSULTANT SPEC.
                                                                                                                                                                        W
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   13
                                                                                                                                                             RL RL1
                                                                                                                                                               12 2.5
                                                                                                                                                               Ex




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            1
                                                                                                                                                                 .25 9




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   12                                                                                                                                                     4
                                                                                                                                                                                                BA L13
                                                                                                                                                                                                  SE .0
                                                                                                                                                                                                  R
                                                                                                                                       RL




                                                                                                                                                                                     Ex
                                                                                                                                          12




                                                                                                                                                                                           TW



                                                                                                                                                                                                     OF




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    12
                                                                                                                                                                             Ex




                                                                                       W
                                                                                                                                              .78




                                                                                                                                                                                RL

                                                                                                                                                                                            13



                                                                                                                                                                                                        PM




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              RWHT
                                                                                                                                                                                                         .23
                                                                                                                                                                                   12




                                                                                                                                                                                                           T




                                                                                                                                                                                                                                                                                   | | | | | |                            |
                                                                                                                                                                                     .51




                                                                                                                                                                                                                                                                     | |                                13.0
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               DRAINAGE NOTES:                                                                                                                                   12.       STORMWATER PITS AND MANHOLES TO BE PRECAST ITEMS TO SUIT
                                                                                                                                                                                                                13




                                                                                                                                                                                                                                          13.0                  |




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       15




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              17
                                                                                                                                                                                                                                                                                                                           13                                                                                                                                                                                                                                                                                                                                 300kL RAINWATER HARVESTING TANK                                                                                                                                                                                                              NOMINATED CLASS & DEPTH UNLESS NOTED OTHERWISE
                                                                                                                                                                                                                                                        |
                                                                                                                                                                          D




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          11
                                                                                                                                                                                                                                                  |




                                                                                            D6
                                                                                  S                                                                                                                                                                                                                      12.5
                                                                                                                                                                                                                                             |




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       16
                                 14                                                                                                                                                                                                                                                                                                                                                                                                                            12                                                                                                                                                                                             TO HYDRAULIC CONSULTANTS SPEC.                                                   1.   ALL STORMWATER CATCHMENT NAMES ARE AS PER THE STORMWATER 13.                                                                                           ALL PIPEWORK TO BE CUT BACK FLUSH WITH PIT WALLS AND SEALED USING




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         D
                                                                                                                                                                                                                                                       EXISTING Ø300 TO
                                                                                                                                                                                                                                         ||




                                                                                                                                                                                                                                                                12.0
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    PITS THEY CONTRIBUTE TO.




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   S
                                                                                                                                                                                                                                 | | |




                                                                                                   D06                                                                                                        12.5                                     BE TAKEN 11.5
                                                                                                                                                                                                                                                                 UP                                                                                                                                                                                                                                                                                                                                        11                                                                                                                                                                                                                                                                                              EPOXY MORTOR
                                                                                                                                 13




                                                                                                                                                             H                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 2. REFER DRAWINGS /CA01 FOR STORMWATER CATCHMENTS AND             14.                                                                                       ALL PIT BASES TO BE RENDERED TO FALLS USING EPOXY MORTOR SUCH
                                                                                                                                                                                                                                 |




                                                                                                                                     AT
                                                                                                                                 OWP




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 19
                                                                                                                                                                                                                            | | | || |




                                                                                                                           FL                                                                                                                                                              0
                                                                                                                                                                                                                                                                                                              | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |                                                                                                                                                                                                      Ex
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      R    L1                                                10                                                                     CALCULATION TABLES.                                                                                                                                    THAT THEY ARE FREE DRAINING
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | | | | | |




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                0.5
                                                                                                                                                                                                                                                                                    11.2
                                                                                                                                                                                                                                                                                                        | | | | | |




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               RL




                                                                                                       AND                                                                                                                                                                     RL                                                                                                                                                                                                                                                                                                                                                     0
                                                                                                                                                               S




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  10
                                                                                                                                                                         RCB




                                                                                   RL                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          3. UNLESS NOTED OTHERWISE ALL PIPES ARE R.C.P. CLASS 3, R.R.J.
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 .85




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 15.                                                                                       CONTRACTOR TO SUBMIT THE FOLLOWING MINIMUM QUALITY ASSURANCE
                                                                               OVE
                                                                                                                                                                                                                                                                                                                                                                                                                                           BIO BA
                                                                                                                                                                                                                                                                                                                                                                                                                                                  SIN

                                                                        3.4m                                                                                                                                                                      12                                                                                                                                              11
                                                                                                                                                                                                                                                                                                                                                                                                                                           RL10.45
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   PROPOSED BIORETENTION BASIN '1'                                             4. UNLESS NOTED OTHERWISE ALL STORMWATER MANHOLES ARE TO BE                                                                                                 DOCUMENTATION UPON COMPLETION:-
                                                                                                                                                                             C




                                                                                                                                                                                                                                     | |




                                                                                                                                                                                                                        12.0
                                                                                                                                                                                                                                             |                                                                  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
                                                                                                                                                                                1200
                                                                                                                                                                                                   D




                                                                                                                                                                                                                                                   |        || |                                                                                                                                                                                                                                                                                                                                                                                                   & RAPID INFILTRATION CULVERT 'RIC'                                               STD 11050
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          0 DIA                                                                                                                                            -    AS-CONSTRUCTED SURVEY




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 D
                                                                                                                                                                                                                                                                                    |                                                                                                                                                                                                                                                                                                                                                                              9REFER D09 & WQO1 FOR DETAILS
      LEGEND:                                                                                                                                                                                                                                                                  |
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  10                                                                                                                                                                                                                           5. CONSTRUCTION TRAFFIC1TO




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           18
                                                                                                                                                                                                                                                                                                          .20
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          1 BE EXCLUDED FROM PIPEWORK
                                                                                                                                                                                                                                      11.5                                                             L11
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           -    CCTV SURVEY
                                                                                                                                                                                    w




                                                                                                                                                                                                                                                                                                    R




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 S
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   13
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        5




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              12
                                                                                                                                                                                            x 45




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  10.8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    TRENCHES UNTIL SUCH TIME AS PAVEMENT OVERLAY IS COMPLETE &
                                                            12                                                       D7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                RL                                                                               WEIR LE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           -    MATERIAL TEST RESULTS




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          20
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          0                                                                                              VE
                                                                                                                                                                                                                                                  11.0                                                                                                                                                                                                                                                           RL1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    1.2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           .5                                                                        8.5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                RL 10.85 L
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  9 WRITTEN APPROVAL IS RECEIVED FROM THE SUPERINTENDANT
                                                                                                                                                                                                0h




                                                                                                                                                                                                                                                                                     .70                                                                                                                                                                                                                                 L8
                                                                                                                                                                                                                                                                                  10                                                                                                                                                                                                                              Ex
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     R                                                                       RL
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              14 16.                                                                                       ALL WORK IS TO BE COMPLETED IN ACCORDANCE WITH ALTA PROJECTS
                                                                                                                            D06
                                                                                                                                                                                                                                                                               RL                                                                                                                                                                                                                                                                                                          Ex
                                                                                                                                                                                                                                                                            Ex
                                      PROPOSED BIORETENTION AREA                                                                                                                                                                                        10.5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    9                                                                                                                                                                                                                                                                          6. WHERE IT IS IMPRACTICAL TO EXCLUDE CONSTRUCTION TRAFFIC ALL                                                                                              STANDARD SPECIFICATION.
                                                                                                                                                                                           S




                                                                                                                                                       AT                                      H                                                                                        10                                       EXISTING CONCRETE                                                                                                                                                                                                                                                                                                                                                                                                  WHEEL LOADS MUST BE CONFINED TO 20mm STEEL BRIDGING PLATES 17.                                                                                             15
                                                                                                                                                   OWP                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     ROADWORKS   AND DRAINAGE SET-OUT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        17 INFORMATION IS AVAILABLE FOR THE
                                                                                                                                               D FL                                                                                                                                                                              FOOTPATH TO BE
                                                                                                                                                                                                                                                             10.0
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    AS DETAILED                                                                                                                                                                16




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
                          .50          PROPOSED DESIGN                                                                               AN                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    CONTRACTOR VIA COMPUTER   MODEL PROVIDED BY ALTA PROJECTS.
                                                                                                                     ERL
                                                                                                                                                                                                                         D




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
                                                                                                                                                                                                                                                                                                                                 RECONSTRUCTED
                     RL 5                                                                        V




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         D
                                       SURFACE LEVEL                                        4m O                                                                                                                                                                            9                                                                                                                                                                                                                                                                                                                                                                                                S                                                                 7. BEDDING/HANCHING MATERIALS & BACKFILL TO BE COMPACTED IN                                                                                                 HOWEVER, ALTA PROJECTS ACCEPTS NO RESPONSIBILITY FOR INCORRECT



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              9




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  S
                                                                                                                                                                                                                                                                            1                                                                                                                                                                                                                                                                                                                                                    S                                                                                                                  LAYERS NOT EXCEEDING 150mm THICK USING VIBRATING PLATE OR                                                                                              SETOUT FROM THE DATA PROVIDED. CONTRACTOR SHOULD CONFIRM THE                                                                                                                                                                                19
                       11                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           SIMILAR COMPACTILE EFFORT. HYDRAULIC COMPACTION ALONE IS                                                                                               CORRECT COORDINATES WITH THE MANHOLE SETOUT DATA PROVIDED ON
                                       FINISHED SURFACE CONTOUR                                                                                                                                                                                                             9                              S                                                                                      S                                                                              S
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    UNACCEPTABLE.                                                                                                                                          THESE DRAWINGS.                                              18
                                       EXISTING SURFACE CONTOUR                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        10
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               8. BEDDING/HAUNCHING MATERIAL TO BE COMPACTED    AT MOISTURE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              SIEVE SIZE (mm)                                                        WEIGHT PASSING (%)
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    CONTENT 60% > OPTIMUM > 90% AS DETERMINED AS1289.5.7.1 (STD)                                                                                                       13                75.0                                                -
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               9. TRENCH COMPACTION TESTING TO BE9 CARRIED OUT AT THE11
                                                                                                                                                                                                                                 RCBC




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

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