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1984-12-15_REVISION - C1981012
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1984-12-15_REVISION - C1981012
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Entry Properties
Last modified
12/21/2020 8:59:42 AM
Creation date
12/11/2012 9:12:00 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981012
IBM Index Class Name
REVISION
Doc Date
12/15/1984
Doc Name
Responses to Permit Conditions and Stipulations
From
Wyoming Fuel Company
To
Mined Land Reclamation
Type & Sequence
PR1
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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NEW ELK MINE <br /> ROAD DRAINAGE CALCULATION SHEET <br /> Ditch R2-A <br /> Drainage Area STA 0+00 to STA 4+65 = 0.32 Acres <br /> CN = 90 <br /> Peak Flow (10 yr-24 hr)(2) = 2.0 CFS <br /> Use a 1' deep, 1.5H:l V V-ditch <br /> Q = 1.486/n Ar2/3 sya <br /> s = 0.06 <br /> A = 1.5 Ft.2 <br /> r = 0.4 Ft. <br /> n = 0.04 <br /> V = 4.9 FPS <br /> Q = 7.4CFS <br /> Ditch R2-B <br /> Drainage Area = 6.5 acres <br /> CN = 85 <br /> Peak Flow (2) = 19.0 CFS <br /> Use a 2' deep, 2' bottom, 10, top width trapazoidal ditch <br /> Q = 1.486/n Ar2/3 syz <br /> s = 0.006 <br /> A = 8.0 Ft.2 <br /> r = 1.O Ft. <br /> n = 0.04 <br /> V = 2.9 FPS <br /> Q = 23.0 CFS <br /> Ditch 8-20) <br /> Flow = 9.8 CFS <br /> Size = 1.5 depth x 12.0 top x 6.0 bottom <br /> -2- <br />
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