Excel Spreadsheet to Assist in Calculating Overland Sheet Flow using Rational MethodCan replace IFD table in sheet 2 to suit your area IFD from BOM website (Australia)
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By Enes Ozdemir
Transcript
Sheet1By Enes OzdemirRural Zero Fraction ImperviousUsing
Bransby-Williams formula for tcKEYDrainage Length (L)0.253km