Development Application part 2 of 2 Report and Plans MCU13/0030

PRE DEVELOPMENT Cooroy Aged c noosa 100-Year Ouration=6 min, Inten=301.0 mm/hr
Prepared by {enter your company name here}                                            Printed 17/02/2013
[email protected] sIn 05328 @ 2011 HydroCAD Software Solutions LLC

                        Time span=0.00-3.00 hrs, dt=0.01 hrs, 301 points
                         Runoff by Rational method, Rise/Fall=1.0/1.7 xTc
               Reach routing by Stor-Ind method   -
                                                   Pond routing by Stor-Ind method


5ubcatchment 25: Grass carpark area     Runoff Area=957.0 m2       0.00% Impervious   Runoff Depth=20 mm
                                                  Tc=10.0 min       C=0.84   Runoff=0.04039 m3/s 0.020 MI


Subcatchment 55: Existing roof     Runoff Area=2,806.0 m2     100.00% Impervious      Runoff Depth=41 mm
                                                      Tc=6.0 min    C=1.00   Runoff=0.23494 m3/s 0.114 MI


5ubcatchment 65: grass for new roof     Runoff Area=768.0 m2       0.00% Impervious   Runoff Depth=20 mm
                                                  Tc=10.0 min       C=0.84   Runoff=0.03241 m3/s 0.016 MI


Reach 4R: (new Reach)                                                         Inflow=0.30774 m3/s 0.149 MI
                                                                             Outflow=0.30774 m3/s 0.149 MI


        Total Runoff Area = 0.4531 ha   Runoff Volume = 0.149 MI        Average Runoff Depth 33 mm=


                                   38.07% Pervious = 0.1725 ha          61.93% Impervious 0.2806 ha
                                                                                              =