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PERMFILE125835
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PERMFILE125835
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Entry Properties
Last modified
8/24/2016 10:23:10 PM
Creation date
11/25/2007 2:29:05 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
EXHIBIT 08 TAB 4.13 West Rockfall Hazard Trench, X-Sect A-G, 10yr 24hr SAE
Media Type
D
Archive
No
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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: C:\SEDCAD3\SUB\WTRENCH User: CW BEGEJ <br />Date: 06-06-1995 Time: 15:55:11 <br />SAE DEMONSTRATION, WEST ROCKFALL HAZARD. TRENCH, X-SECT A-G, 10-YR 24HR <br />Storm: 1.80 inches, l0 year-24 hour, SCS.Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />NON-POND STRUCTURE INPUT/OUTPUT TABLE <br />J1, B1, 54 _.. <br />X-SECT E-G <br />Drainage Area from J1, B1, 54, SWS(s)1-3: 11.9 acres <br />Total Contributing Drainage Area: 56.5 acres <br />GRASS FILTER INPUTS: <br />Bulk Specific Gravity: 1.25 <br />Initial Depth of Sediment in Zone D: 0.00 inches <br />Manning~s Grass Grass Infiltration Stiffness ------ Filter ------ <br />Seg n Height Spacing Rate Factor Length Width Slope <br /># (in) (in) (iph) (N-sq m) (ft) (ft) (~) <br />-------------------------------------------------------------------------- <br />- --- -- - ----- - --- -- -- -------------------- <br />1 0.0117 9.0 1.0 0.05 20.000 100.0 50.0 26.0 <br />~• Total Filter Peak Critical Filter Sediment <br />~ Trap Infiltration Infiltration Flow Prone Travel Wedge Depth <br />efficiency Volume Rate Depth Velocity Time Location in Zone [ <br />(~) (ac-ft) (cfs) (inch) (fps) (hrs) (feet) (inch) <br />- - --- ------ - --------------- - -- ------------------- <br />74.7 0.0081 0.0058 0.223 1.0367 0.1000 0.000 0.032' <br />Runoff Peak Peak Sediment Peak Settleable <br />Volume Discharge Sediment Concentration Concentration 24VW 24AA <br />(ac-ft) (cfs) (tons) (mg/1) ml/1 (ml/1) (ml/1) <br />------------------- - --- -------------------------- <br />IN 0.67 3.30 0.7 1895 1.23 0.51 0.26 <br />OUT 0.67 3.29 0.2 726 0.19 0.05 0.02 <br />**~*******~**************************t*****,r********~********************~****~ <br />• <br />TAB 4.13, PG 4 <br />11/1/99 <br />Permit Renewal No. 3 FORMERLY EX 8-159 <br />
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