LATE RFI - Revised SWMP

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                                                                                  TURNOUT DRAINAGE SWALE
                                                                                  THROUGH LEVEL SPREADER
                                                                                  SPILLWAY OF MINIMUM 4M




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                                                                                  TYPICALLY AS PER IECA STD
                                                                                  DWG LS-01




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                                                                                                   MINIMUM 3KL RAINWATER REUSE
                                                                                                   TANK TO BE PROVIDED FOR FUTURE
                                                                                                   DWELLINGS ON NEW LOT. TANK TO                                                                                  PROVIDE TABLE DRAIN
                                                                                                   BE CONNECTED FOR INTERNAL AND                                                                                  300mm DEEP WITH 1V:2H




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                                                                                                   EXTERNAL NON-POTABLE REUSE                                                                                     BATTERS TO DIVERT
                                                                                                                                                                                                                  UPSTREAM RUN-OFF




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                                                                                                                                                                                                                                                                                        UPSTREAM STORMWATER CATCHMENT
                                                                                                                                                                                                                                                                                        AREA:             0.25Ha




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                                                                                                                                                                                                                                                                                        Fi:               31.0%
                                                                                                                                                                                                                                                                                        tc (FRIENDS EQN): 10 Min
                                                                                                                                                                                                                                                                                        Itc (1%):         235mm/hr




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                                                                                                                                                                                                                                                                                        RATIONAL METHOD




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                                                                                                                                                                                                                                                                                        1hr10:                    65.2mm/hr
                                                                                                                                                                                                                                                                                        C10:                      0.73
                                                                                                                                                                                                                                                                                        Fy:                       1.2
                                                                                                                                                                                                                                                                                        CLIMATE FACTOR:           1.2




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                                                                                                                                                                                                                                                                                        Qy = 1/360 * 0.25 * (1.2*0.73) * 235 *1.2
                                                                                                                                                                                                                                                                                            = 0.172m³/s




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                                                                                                                                                                                                                                                                                     300mm 1V:2H




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                                                                                                                                                                                                                                                                                        CHANNEL FLOW (MANNINGS EQN)
                                                                                                                                                                                                                                                                                        Sf:                     4.4%
                                                                                                                                                                                                                                                                                        DEPTH:                  0.30m
                                                                                                                                                                                                                                                                                        SIDE SLOPES:            1V:2h




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                                                                                                                                                                                                                                                                                        BASE:                   0m
                                                                                                                                                                                                                                                                                        WETTED PERIMETER:       1.34m
                                                                                                                                                                                                                                                                                        AREA:                   0.18m²
                                                                                                                                                                                                                                                                                        HYDRAULIC RADIUS (A/P): 0.134m
                                                                                                                                                                                                                                                                                        MANNINGS n (GRASS):     0.035




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                                                                                                                                                                                  CAUTION: SEWER LINE IN                                                                                V: 1.57m/s
                                                                                                                                                                                  VICINITY. POTHOLE TO LOCATE                                                                           FLOW CAPACITY (Qcap) = 0.283m²
                                                                                                                                                                                  AND ENSURE MINIMUM 600mm
                                                                                                                                                                                  COVER TO FINISHED SURFACE                                                                             Qcap > Qmax = TRUE
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                                              INDICATIVE NEW DRIVEWAY
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                                             LOCATION. FINAL DESIGN TO
                                                         BE CONFIRMED
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                                                                                                                        CLIENT DETAILS:                                                        PROJECT ADDRESS:                                       APPROVED BY:                   PROJECT NAME:

                                                                                                                                                                                                                                                                                     PROPOSED RESIDENTIAL SUBDIVISION
                                                                                                                                                NEIL GAGHAN                                                                                                                          TITLE:                                         STATUS:

                                                                                                                                                                                                                35 PAVILION STREET                                                   STORMWATER LAYOUT                              FOR APPROVAL - NOT FOR
           © ABN 89 647 469 707
                                        02   26/05/23   RFI UPDATE                           BRP                  BRP
                                                                                                                                                                                                                POMONA, 4568, QLD                               BEN PARRY            PLAN                                           CONSTRUCTION
             75 NOOSA DRIVE                                                                                                                                                                                                                                     RPEQ: 28084
                                        01   30/09/22   MCU ISSUE                            BRP      MVP         BRP   SCALE: 1:250
          NOOSA HEADS, QLD 4567
                                                                                                                                          5                     15                 25m                                                                          CPEng NER            DRAWING NUMBER:                                PROJECT NUMBER:   SHEET REV:
              +61 7 5211 1003          REV   DATE                   DESCRIPTION             DWN       CHK         APP
                                                                                                                                                                                                                                                               DATE: 26/05/2023                                                                        SIZE:
          RECORCONSULTING.COM                                            REVISIONS
                                                                                                                                              DO NOT SCALE, IF IN DOUBT ASK
                                                                                                                                                                                                                                                                                      040                                           20220206          A1 02