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Civil Software Design -- SEDCAD+ Version 3.1 <br />Copyright (C) 1987-1992. Pamela J. Schwab. All rights reserved. <br />J <br />Company Name: Greystone Development Consultants <br />Filename: A:\DT\WF\CTYRD2 User: CWB <br />Date: OS-04-1993 Time: 08:51:47 <br />DITCH ALONG COUNTY ROAD - AREA 1 <br />Storm: 1.40 inches, 2 year-24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />----------------------------------------- <br />----------------------------------------- <br />NON-POND STRUCTURE INPUT/OUTPUT TABLE <br />----------------------------------------- <br />----------------------------------------- <br />J1, B1, S1 <br />S SIDE OF COUNTY RD <br />Drainage Area from J1, B1, S1, SWS(s)1: 3.0 acres <br />Total Contributing Drainage Area: 3.0 acres <br />• <br />w/ Freeboard: <br />MATERIAL: GRADED SILTS TO COBBLES COLLOIDAL <br />Trapezoidal Earthen Channel <br />Limiting Variable: Velocity = 4.000 fps <br />Clear water <br />Design Bottom Manning's <br />Discharge Width ZLeft ZRight Slope n <br />(cfs) (ft) (%) <br />0.61 6.8 5.5:1 5.5:1 4.0 <br />Top Hydraulic <br />Depth Velocity Width Radius <br />(ft) (fps) (ft) <br />0.06 1.45 7.4 <br />0.36 10.7 <br />Runoff <br />volume <br />(ac-ft) <br />0.056 <br />Peak <br />Discharge <br />(cfs) <br />0.030 <br />Froude <br />Number <br />1.08 <br />IN/OUT 0.05 0.61 <br />• <br />