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2014-07-31_PERMIT FILE - C1996083A (13)
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2014-07-31_PERMIT FILE - C1996083A (13)
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Last modified
8/24/2016 5:46:14 PM
Creation date
8/21/2014 7:14:11 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1996083A
IBM Index Class Name
Permit File
Doc Date
7/31/2014
Doc Name
pages EXH 8-98 to EXH 8-245
Section_Exhibit Name
Volume III Exhibit 08 Protection of the Hydrologic Balance Part 2
Media Type
D
Archive
Yes
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SEDIMENT VOLUME - Pond K <br />A= RKLSCP <br />D <br />0.600 <br />R = rainfall factor <br />WIDTH <br />30.00 <br />K = soil erodibility factor - Work soil <br />FEET <br />0.37 <br />LS = combined length slope factor 1200'- 4% <br />0.020 <br />1.00 <br />C = cropping management factor <br />N <br />1.00 <br />P = erosion control practice factor <br />SIDE SLOPE <br />1.00 <br />A = sediment, tons /acre /year <br />SLOPE = X:1 <br />11.10 <br />THREE YEAR SEDIMENT VOLUME - ACRE FEET <br />0.101 <br />7.56 ACRES-115#/CF <br />TOTAL REQUIRED SEDIMENT POND CAPACITY — AF <br />0.486 <br />10 -YR <br />25 -YR <br />24 HR <br />24 HR <br />Event <br />Event <br />Pond K Drainage 4.47 <br />5.92 <br />Flow calculations for the site ditches and culverts are presented in following sections of this exhibit. <br />Pond K Emergency Spillway <br />Manning's Equation <br />Flow In a Trapezoidal Channel <br />DEPTH <br />D <br />0.600 <br />FEET <br />WIDTH <br />W <br />2.000 <br />FEET <br />Slope <br />S <br />0.020 <br />EXPRESS AS DECIMAL <br />Mannings "N" <br />N <br />0.030 <br />EXPRESS AS DECIMAL <br />SIDE SLOPE <br />X <br />2.000 <br />SLOPE = X:1 <br />AREA= (W'D) +(X'DA2)= <br />WETTED PERIMETER= (W) +2`[((X`D)A2 +DA2)A0.5] <br />R= AREAfWETTED PERIMETER <br />V= (1.49 /N)- (RA.667)`(SA.5)= <br />Q =AXV= <br />Q REQUIRED - Peak Discharge <br />Riprap Sizing - Across top of Embankment - Pond K <br />D50 = Size of Riprap <br />D50 = ((V X SA. 17)/7.58))^2 <br />D50 = Diameter in feet <br />V = Velocity <br />S = Slope <br />D50 = 0.07 feet <br />0.8 inches <br />1.92 FEET A2 <br />4.68 FEET <br />0.41 <br />3.88 FT /SEC <br />7.44 CFS <br />5.92 CFS <br />None Required <br />TR -084 EXH. 8 -164 11/13 <br />
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