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2011-11-28_PERMIT FILE - C1992081A (7)
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2011-11-28_PERMIT FILE - C1992081A (7)
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Last modified
8/24/2016 4:45:24 PM
Creation date
1/23/2012 10:27:03 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1992081A
IBM Index Class Name
Permit File
Doc Date
11/28/2011
Doc Name
Existing Facilities Area Conditions
Section_Exhibit Name
Tab 12 Attachment 12-1
Media Type
D
Archive
Yes
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Civil Software Design -- SEDCAD+ Version 3.0 <br />Copyright (C) 1987 -1990. Pamela J. Schwab. All rights reserved. <br />Company :Fame: Peabody Coal Company <br />Filename: E: \SEDCAD3 \2W\9R User: RJG <br />Date: 04 -10 -1991 Time: 15:12:14 <br />SENECA II -W MINE TAHRD -9R ( RIPRAP SECTION) <br />Storm: 1.60 inches, 10 year -24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />NON -POND STRUCTURE INPUT /OUTPUT TABLE <br />J1, B1, S1 <br />TAHR.D -9R RIPRAP <br />Drainage Area from J1, B1, S1, SWS(s)1: 16.1 acres <br />Total Contributing Drainage Area: 16.1 acres <br />MATERIAL: Rock Riprap <br />Trapezoidal Riprap Channel <br />Steep Slope Design <br />Design Bottom Manning's <br />Discharge Width ZLeft ZRight Slope n <br />(cfs) (ft) M <br />9.16 10.0 3.0:1 5.0:1 8.0 0.031 <br />Top Hydraulic Froude <br />Depth Velocity Width Radius Number <br />(ft) (fps) (ft) <br />0.12 3.25 11.0 0.117 1.68 <br />---- DMah ---- ---- D50 - - -- ---- D10 - - -- <br />(ft) (in) (ft) (in) (ft) (in) <br />0.31 3.75 0.25 3.00 0.08 1.00 <br />Runoff Peak <br />Volume Discharge <br />(ac -ft) (cfs) <br />----------------------- <br />----------------------- <br />IN /OUT 0.69 9.16 <br />
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