F0002-AA007595-AAR-10-SMP · MCU14/0102.05

                                                                 Project:           Eumundi Noosa Road
                                                                 Project No.:       AA007595
                                                                 Designer:          KF
                                                                 Date:              5/11/2014




Rational Method Calculations

Project                       Eumundi Noosa Road

Description                   Catchment 2 (Western Side) Post-Developed Discharge




Time of Concentration                                          5.0                  minutes

Area of Catchment                                       0.24                        Hectares

Fraction Impervious                                            0.9

Council Chart No.
                 15

Council Name
                                  #N/A


                   ARI                   C value          Rainfall Intensity        Discharge         (m3/s)         Comments
                                                                 (mm/hr)

        3month                                                                                 0.03             Write anything here
              1 year                      0.71                       128.57                    0.06             that is applicable to
                                                                                                                the analysis
             2 year                       0.76                       163.17                    0.08
             5 year                       0.85                       200.83                   0.11
       10 year                            0.89                       222.29                    0.13
       20 year                            0.93                       252.10                   0.16
       50 year                            1.00                       291.10                    0.19
  100 year                                1.00                       320.76                    0.21

                                                               ARI vs Discharge

                       6.00


                       5.00
  Discharge (cumecs)




                       4.00


                       3.00


                       2.00


                       1.00


                       0.00
                              0          10        20   30            40      50     60          70        80         90       100

                                                                              ARI


All Calculations are based on QUDM methods                                                                               Version 4/05