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SEDCAD 4 for Windows <br />• r,.~,r..m ~aoa-omo c~...em ~ c,o,,.,en <br />Structure #5 jt/egetated Channell <br />SEC. 21 DITCH 4 <br />Trapezoidal Vegetated Channel Inputs: <br />Material: Smooth brome <br />Left <br />Bottom Right Freeboard Freeboard <br />Retardance Freeboard Limiting <br />Sideslope <br />Width (R) Sideslope Slope (%) <br />Classes + <br />° Mult. x Velocity <br />Ratio Ratio Depth (k) <br />/ of Depth <br />I <br />(VxD) f s <br />(P ) <br />12,00 2.0:1 2.0:1 14.3 D, B 1.00 3.0 <br />Vegetated Channel Results: <br /> <br /> Stability <br />Class D w/o <br />Freeboard 6[ability <br />Class D w/ <br />Freeboard Capacity <br />Class B w/o <br />Freeboard Capacity <br />Class B w/ <br />Freeboard <br />Design Discharge: 1.80 ds 1.80 cfs <br />Depth: 0.12 R 1.12 ft 0.27 R 1.27 ft <br />Top Width: 12.47 R 16.47 ft 13.09 R 17.09 R <br />Velocity: 1.25 fps 0.53 Fps <br />X-Sectlon Area: 1.44 sq R 3.41 sq R <br />Hydraulic Ratlius: 0.115 k 0.258 ft <br />Froude Number: 0.65 0,18 <br />Roughness Coefficient: 0.1054 0.4311 <br />Structure #6 (Pond) <br />19 <br />SEC. 21 SED TRAP 2 <br />Pond Inputs: <br />Initial Pool Elev: 7,921.20 k <br />Initial Pool: 0.53 ac-ft <br />Emergency Spillway <br />Spillway Elev Crest Length Lek Right Bottom <br />(k) Sideslope Sideslope Width (k) <br />7,924.25 20.00 2.00:1 2.00:1 12.00 <br />Pond Results: <br />Peak Elevation: 7,924.52 ft <br />Dewater Time: 0.54 days <br />Dewatering time is ralcu/ated from peak stage to lowest spi/lway <br />Elevation-Capacity-Discharoe Table <br />• <br />Filename: STSec21 Hundretl24.010807.sc4 Printed Ot-08-2007 <br />Exh. 7-20B-73 Revision Date: 1/05/07 <br />Revison No.: PR-02 <br />