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Appendix F
6
Hydrograph Report
Hydraflow Hydrographs Extension for AutoCAD® Civil 3D® 2010 by Autodesk, Inc. v9.25 Tuesday, Apr 5, 2011
Hyd. No. 4
post development catchment 3
Hydrograph type = Rational Peak discharge = 0.144 cms
Storm frequency = 2 yrs Time to peak = 6 min
Time interval = 1 min Hyd. volume = 67.2 cum
Drainage area = 0.354 hectare Runoff coeff. = 0.95
Intensity = 154.906 mm/hr Tc by User = 6.00 min
IDF Curve = NOOSA.IDF Asc/Rec limb fact = 1/1.6
post development catchment 3
Q (cms) Q (cms)
Hyd. No. 4 -- 2 Year
0.180 0.180
0.150 0.150
0.120 0.120
0.090 0.090
0.060 0.060
0.030 0.030
0.000 0.000
0 2 4 6 8 10 12 14 16
Time (min)
Hyd No. 4
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