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2015-01-30_PERMIT FILE - C1996083A (17)
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2015-01-30_PERMIT FILE - C1996083A (17)
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Last modified
8/24/2016 5:57:02 PM
Creation date
7/13/2015 9:54:19 AM
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Template:
DRMS Permit Index
Permit No
C1996083A
IBM Index Class Name
Permit File
Doc Date
1/30/2015
Doc Name
Appendix A through Appendix C
Section_Exhibit Name
Volume IX Coal Mine Waste Disposal Area No. 2
Media Type
D
Archive
Yes
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Culvert T -F5 <br />Manning's Equation <br />Flow In a 30" Half Culvert <br />Flow Depth D 0.30 <br />Slope S 0.5 <br />Mannings "N" N 0.015 <br />AREA = Number Derived in AutoCad <br />WETTED PERIMETER= (2*Pi*r)/2 <br />Number derived in AutoCad <br />R=AREANVETTED PERIMETER <br />V=(1.49/N)*(R^.667)*(S^.5)= <br />Q=AXV= <br />Q REQUIRED - Peak Discharge <br />* Flow derived from culvert T=F4 & Ditch F-22 <br />Feet <br />Express as Decimal <br />Express as Decimal <br />0.34 FEET ^2 <br />1.78 FEET <br />0.19 <br />23.30 FT/SEC <br />7.92 CFS <br />5.82 CFS <br />Culvert T -F5 <br />Manning's Equation <br />Flow In a Trapezoidal "Smart Ditch" Channel <br />Depth D 0.3 <br />Feet <br />Width W 1.12 <br />Feet <br />Slope S 0.5 <br />Express as Decimal <br />Mannings "N" N 0.022 <br />Express as Decimal <br />Side Slope X 1.3 <br />Slope = X:1 <br />AREA=(W*D)+(X*D^2)= <br />0.43 FEET ^2 <br />WETTED PERIMETER=(W)+2*[((X*D)^2+D^2)^0.5] 2.07 FEET <br />R=AREANVETTED PERIMETER <br />0.21 <br />V=(1.49/N)*(R^.667)*(S^.5)= <br />16.90 FT/SEC <br />Q=AXV= <br />7.34 CFS <br />Q REQUIRED - Peak Discharge <br />5.82 CFS <br />TR -91 App. B-107 11/14 <br />
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