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1987-12-01_PERMIT FILE - C1981017 (168)
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1987-12-01_PERMIT FILE - C1981017 (168)
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Last modified
1/4/2021 2:20:02 AM
Creation date
5/20/2008 12:40:57 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981017
IBM Index Class Name
PERMIT FILE
Doc Date
12/1/1987
Doc Name
Coal Refuse Facility Drainage Control Plan
Section_Exhibit Name
Chapter II Attachment 5 To Appendix II-B-7 (II-B-App.7-Att 5)
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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RIPRAP SIZING CHART <br /> RIPRAP DESIGNATION AND d50 SIZE <br /> C <br /> I <br /> 20 <br /> I <br /> uu.. 15 <br /> I <br /> > ( VH(24') <br /> ~ I <br /> o <br /> w 10 M(12 ) <br /> > ' <br /> L( 9') <br /> � I <br /> O I I ( VL(6' I I <br /> U. <br /> i i I <br /> 5 <br /> I I I <br /> 0 <br /> 0 .05 .10 .15 .20 .25 <br /> CHANNEL SLOPE S <br /> SIZING DERIVED FROM FORMULA: <br /> VS 0.17 _ VS 0.17 2 <br /> 0. 5.8 OR d50 <br /> d so (SS -1) O.ss 7.58 <br /> ASSUMING SPECIFIC GRAVITY OF RIPRAP, SS 2.5 <br /> s � <br /> REF: URBAN STORM DRAINAGE CRITERIA MANUAL. MAJOR DRAINAGE SECTION . <br /> 46 GEO-HYDRO CONSULTING. INC. <br />
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