RFI - Attachment 3 - Stormwater Management Plan

Pre-Post Peak Flow Comparison
Project number:           21020                                                                       Calculations:               B. Parry
Street Address:           55 Carpenters Road
Locality:                 Cooroy, Noosa Council                                                       Date:                       27/07/2022




                                                        55 Carpenters Rd
          A.E.P                                                                                               Qchange (%)
                              Qexisting (m³/s)            Qproposed (m³/s)     Qchange (m³/s)
                     1EY                    0.411                      0.472              0.061                             15%
                     50%                    0.481                       0.59              0.109                             23%
                   0.2 EY                        0.75                   0.94                0.19                            25%
                     10%                    0.936                       1.11              0.174                             19%
                      5%                          1.1                   1.29                0.19                            17%
                      2%                         1.28                   1.53                0.25                            20%
                      1%                         1.42                   1.72                    0.3                         21%