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PERMFILE119988
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PERMFILE119988
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Last modified
8/24/2016 10:18:54 PM
Creation date
11/25/2007 8:01:38 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981008A
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
NH1 TAB 13 APPENDIX II SEDCAD AND HYDRAULICS DESIGNS DITCHES 2 YEAR 24 HOUR EVENT
Media Type
D
Archive
Yes
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Civil Software Design -- SEDCAD+ Version 3.1 <br />Copyright (C) 1987-1992. Pamela J. Schwab. All rights reserved. <br />• Company Name: Greystone Development Consultants <br />Filename: A:\DT\WF\004CCLN User: CWB <br />Date: 08-06-1993 Time: 10:38:12 <br />DRAINAGE DITCHES ABOVE POND 004 <br />Storm: 1.40 inches, 2 year-24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />NON-POND STRUCTURE INPUT/OUTPUT TABLE <br />----------------------------------------- <br />----------------------------------------- <br />J1, B1, S1 <br />ROAD TO AREA 2 <br />Drainage Area from J1, B1, S1, SWS(s)1: 1.8 acres <br />Total Contributing Drainage Area: 1.6 acres <br />MATERIAL: GRADED LOAM TO COBBLES NONCOLLOIDAL <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 />0.37 0.5 2.0:1 2.0:1 5.5 0.030 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />----------------------------------------------- <br />----------------------------------------------- <br />0.16 2.67 1.2 0.110 1.38 <br />w/ Freeboard: 0.46 2.4 <br />Runoff Yak <br />Volume Discharge <br />(ac-ft) (cfs) <br />----------------------------- <br />----------------------------- <br />IN/OUT 0.03 0.37 <br />J1, B2, S1 <br />ROAD TO POND 002 <br />Drainage Area from J1, B2, S1, SWS(s)1: 3.6 acres <br />Total Contributing Drainage Area: 3.6 acres <br />MATERIAL: GRADED LOAM TO COBBLES NONCOLLOIDAL <br />Trapezoidal Earthen Channel <br />• Limiting Variable: Velocity = 3.750 fps <br />Clear Water <br />Design Bottom Manning's <br />Discharge Width ZLeft ZRight Slope n <br />(cfs) (ft) ($) <br />
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