Attachment C - Stormwater Management Plan - 30-32 Doonella Street_SMP-revA_full (00016826)

    iWBNM Lite

             iWBNM Lite

1 Project Details
                         Project ID
               Project Description     Unit Development - EXISTING CASE
                   Project Location    30-32 Doonella Street, Tewantin, QLD


2 General Parameters                                                                               3 Rain Gauge Data

               Lag Parameter (C)                        1.8                                                 Choose Rain Gauge from Database                                                     Add to Database:   Name      Tewantin      Zone                  3
                 Stream Lag Factor                        1                                                                                                                                          2yr           50yr
                                                                                                            Tewantin
             Calculation Timestep                         1 mins                                                                                                                         1 hr        52.3          94.28          4.4     F2            Ave Rain     1649
                        Initial Loss                      0 mm                                          Tewantin                                                                        12 hr       10.25          23.64        17.61     F50           %Rough         0
             Continuing Loss Rate                       2.5 mm/hr                                                                                                                       72 hr        3.45           8.6          0.11     G       MAF (0.0-1.0)      0.87


4 Topology                                                                                         5 Structure Data
          Subarea          Name           Connects to          Area       Impervious                                           Subarea          IWL          Storage_Fac                            Type                                             Elevation       Storage
                          SINK                                  ha             %                                                                                                                                                                        m              m3
                  1 SUBA               SINK                   0.2527          20                                   Weir           1               2                  Pipe/Box                         1              2            3
                  2                                                                                       Diverts to Sub                                         Diverts to Sub
                  3                                                                                       Crest Elev [m]                                             Invert [m]
                  4                                                                                          Length [m]                                            No. Barrels
                  5                                                                                          Weir Coeff                                           Ent. Type
                  6                                                                                        Disch-Factor                                     Dia/(Width)[mm]
                  7                                                                                          Directed to                                          (Height)[mm]
                  8                                                                                         Delay [mins]                                          Disch-Factor
                  9                                                                                                                                                 Directed to
                 10                                                                                                                                               Delay [mins]
             Total                                              0.3          20.0


6 Storm Data                                                                                       7 Save & Run
            Storm           ARI          Duration [mins]
                  1         1                    25                                                                  Save & Run                   Shortcut: Shift + Ctrl + L
                  2         2                    25
                  3         5                    25                                                                        Most Recent File: C:\Users\Brendon\Documents\WORK\02 Projects\01 Aquaintel\30 30-32 Doonella Street SMP\Design\WBNM\E01\E01.wbn
                  4         10                   25                                                            Location of WBNMRun.exe: C:\Users\Brendon\Documents\WORK\WBNM\wbnm2012\2012_executables\WBNMrun.exe
                  5         20                   25
                  6         50                   25
                  7        100                   25
                  8        PMF                   15


8 Results
                      RESULTS FOR:     C:\Users\Brendon\Documents\WORK\02 Projects\01 Aquaintel\30 30-32 Doonella Street SMP\Design\WBNM\E01\E01_Meta.out
            Storm            1                    2             3              4              5                6                  7               8                                                                         Hydrographs
                        1 Yr 25 Min       2 Yr 25 Min       5 Yr 25 Min   10 Yr 25 Min   20 Yr 25 Min    50 Yr 25 Min       100 Yr 25 Min   PMF Yr 15 Min                                 0.8
                                            3
     Peak Flowrates at Subarea Outlet [Q m /s]                                                                                                                                                                                                                          SUBA(1 Yr
                                                                                                                                                                                                                                                                        15 Min)
            SUBA          0.076                 0.097         0.122         0.135          0.155            0.162              0.180           0.685
                                                                                                                                                                                          0.7                                                                           SUBA(2 Yr
                                                                                                                                                                                                                                                                        15 Min)
                                                                                                                                                                                                                                                                        SUBA(5 Yr
                                                                                                                                                                                                                                                                        15 Min)

                                                                                                                                                                                          0.6                                                                           SUBA(10
                                                                                                                                                                                                                                                                        Yr 15 Min)
                                                                                                                                                                                                                                                                        SUBA(20
                                                                                                                                                                                                                                                                        Yr 15 Min)

                                                                                                                                                                                          0.5                                                                           SUBA(50
                                                                                                                                                                      Flowrate [m3/s]




                                                                                                                                                                                                                                                                        Yr 15 Min)
                                                                                                                                                                                                                                                                        SUBA(100
                                                                                                                                                                                                                                                                        Yr 15 Min)
                                                                                                                                                                                          0.4                                                                           SUBA(PMF
                                                                                                                                                                                                                                                                        Yr 15 Min)
                                                                                                                                                                                                                                                                        ()


                                                                                                                                                                                          0.3                                                                           ()

       Inflow Peak                                                                                                                                       m3/s
                                                                                                                                                                                                                                                                        ()
                                                                                                                                                             3
     Outflow Peak                                                                                                                                        m /s
    Inflow Volume                                                                                                                                        m3                               0.2                                                                           ()

                                                                                                                                                             3
    Max Vol Stored                                                                                                                                       m                                                                                                              ()

   Max Water Elev                                                                                                                                        m                                0.1                                                                           ()

                                                                                                                                                                                                                                                                        ()

                                                                                                                                                                                            0
                                                                                                                                                                                                0           10            20        30          40           50
                                                                                                                                                                                                                           Time [mins]




                                                                                                                                                                                                1