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i •. <br />ATTACHMEMi 73-7 <br />TABLE OF CONTENTS <br /> a e <br />[niroduct(on 1 <br />Design Methodology 1 <br />General Hydrology Design 1 <br />Precipitation and Storm Type 1 <br />SCS Curve Number Selection 2 <br />Sedimentology 5 <br />Soil Erodi bi lity Feetor ("k" factor) 6 <br />Perttcle Size Distribution 7 <br />R-Fector ~ 7 <br />Length-Slope Factor (l,S) 7 <br />The C end P Factors 8 <br />Drainage Area 9 <br />Unit Hydrograph and Surface Condition 9 <br />• Tima of Concentration 9 <br />Sedimentation Sturttures LO <br />Diversions end Ditches 10 <br />Culverts ~ LO <br />Selected References LO <br />Addendum 1 Typical SEDLAD Inputs (Sediment et ion Structures, Ditches, and Culverts) <br />Addendum 2 - Dodson end Associates Hydraulic Programs <br />• <br />Revised 03/01/95 <br />