Att 3 PSWMP

                           QUDM Catchment Calculation
                                                                                                                                                                            1




                                                                                                                                                                                                                                                                                 N
    Pre Development
                                                                                                                                                                        SP188665
      Peak Flow For Pre Development.      Peak Flow For Pre Development.
            Yard Area = 335.8m²                House Area = 175.6m²
           AEP% = 5% (1 in 20 Yrs)             AEP% = 5% (1 in 20 Yrs)
       Intensity (mm/hr) = 259mm/Hr        Intensity (mm/hr) = 259mm/Hr
                    Fi = 0.7                            Fi = 0.9                                                                                                                                                                        38.00
                  C10 = 0.84                          C10 = 0.89
                   Fy = 1.05                           Fy = 1.05
            Cy = Fy.C10 => 0.88                 Cy = Fy.C10 => 0.93
        Q = (Cy.Iy.A)/360 => 21.26L/s       Q = (Cy.Iy.A)/360 => 11.75L/s
                                                                                                                                                                             PROPOSED
     Total Discharge Pre Development                 33.01L/s                                                                                                                POOL (10.5m²)
    Post Development

     Peak Flow For Post Development.     Peak Flow For Post Development.
           Yard Area = 318.3m²                House Area = 172.1m²
         AEP% = 5% (1 in 20 Yrs)             AEP% = 5% (1 in 20 Yrs)                                                                                                                                                                    37.00
                                                                                                                                                                            BALCONY ROOF
      Intensity (mm/hr) = 259mm/Hr        Intensity (mm/hr) = 259mm/Hr                                                                                                      TO FLOW BACK ONTO
                  Fi = 0.7                            Fi = 0.9                                                                                                              PROPOSED HOUSE.
                 C10 = 0.84                          C10 = 0.89                                                      I/O
                                                                                                                                    150Ø                                         150Ø                      I/O
                 Fy = 1.05                           Fy = 1.05
           Cy = Fy.C10 => 0.88                 Cy = Fy.C10 => 0.93
      Q = (Cy.Iy.A)/360 => 20.15L/s       Q = (Cy.Iy.A)/360 => 11.51L/s
                                                                                                                                       100x100                                100x100
                                                                                                                                                                                                                                 107
                                                                                                                                                           RL 33.9
    Total Discharge Post Development                 31.66L/s                                                                      Rectangular
                                                                                                                                     Downpipe
                                                                                                                                                                          Rectangular
                                                                                                                                                                            Downpipe
                                                                                                                                                                                                                               RP94566
                Net Result                           -1.35L/s

                                                                                                                                       PROPOSED HOUSE PLAN                                                                             36.00




                                                                                                           0Ø
                                                                                                      15
                                                                                                                                                   108
                                                   79                                                                                            RP94566




                                                                                                                                                                                                            150Ø
                                                 RP94566                                                                                                        100mm EasyDRAIN Pressed
                                                                                                                                                                   Galvanised Steel Grate
                                                                                                                                                                                             RL 33.9
                                                                                    I/O                                                                                                                                                 35.00


                                 38.00
                                                                                           PROPOSED
                                                                                           POOL (10.5m²)

                                                                                                                                                                                 CONCRETE




                                                                                                                                                                                                 100Ø
                                                                             150Ø




                                                                                                                                                                                 DRIVEWAY




                                                                                                                                                                                                                                         34.00


                          .00
                       37
                                                                                                   EDWARD STREET
                                                                                                                             .00                                                                   34.00
                                                                       .00




                                                                                                                           35
                                                                     36




                                                                                                                                                 0                           5                          10                    15                            20 Metres
                                                                                                                                                 Scale 1:150




                                                                                          No.               Description                  Date           ADAM FLANAGAN & SHANE TYE                                     APPROVED
AAA Design & Development Pty Ltd                                                                                                                                                                                       Jose David Lesmes Tirado        STORMWATER MANAGEMENT PLAN
34/13 Norval Court, MAROOCHYDORE, QLD 4558                                                                                                             164 Edwards St,
                                                                                                                                                                                                                                                     Project number T081-01
Tel/Fax: (07) 5479 6747
                                                                                                                                                        SUNSHINE BEACH QLD
Mob:      0422 039 247                                                                                                                                                                                                                               Date         25/01/2022         3497 - 19
                                           design &                                                                                                                                                                                                                     K.A.J
                                                                                                                                                                                                                      BEng, MIEAust, RPEQ 7198       Drawn by
email: [email protected]                                                                                                                                                                                        For & on behalf of AAA
                                                                                                                                                       PROPOSED DUPLEX                                             Design & Development Consulting   Checked by         D.L.T.   Scale @ A3      1:100