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2022-07-12_PERMIT FILE - C1981019 (17)
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2022-07-12_PERMIT FILE - C1981019 (17)
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Last modified
5/9/2023 2:47:59 PM
Creation date
5/9/2023 2:45:36 PM
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Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Permit File
Doc Date
7/12/2022
Doc Name
Coal Stockpile Pond
Section_Exhibit Name
Volume 18 Exhibit 7, Item 23 Part M
Media Type
D
Archive
No
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Southeast Crusher Ditch w/Natural Channel <br /> Trapezoidal Riprap Channel Inputs: <br />Material: Riprap <br />Bottom <br />Width (ft) <br />Left <br />Sideslope <br />Ratio <br />Right <br />Sideslope <br />Ratio <br />Slope (%)Freeboard <br />Depth (ft) <br />Freeboard <br />% of Depth <br />Freeboard <br />Mult. x <br />(VxD) <br />3.00 2.0:1 2.0:1 12.0 1.89 <br /> Riprap Channel Results: <br />Simons/OSM Method - Steep Slope Design <br />w/o Freeboard w/ Freeboard <br />Design Discharge: 11.50 cfs <br />Depth: 0.24 ft 2.13 ft <br />Top Width: 3.96 ft 11.52 ft <br />Velocity*: <br />X-Section Area: 0.83 sq ft <br />Hydraulic Radius: 0.205 ft <br />Froude Number*: <br />Manning's n*: <br />Dmin: 5.00 in <br />D50: 15.00 in <br />Dmax: 18.75 in <br />Velocity and Manning's n calculations may not apply for this method. <br />Structure #6 (Null) <br /> Null at Inlet on Culvert 64 <br />Structure #5 (Culvert) <br /> Culvert 64 <br /> Culvert Inputs: <br />Length (ft) Slope (%) Manning's n <br />Max. <br />Headwater <br />(ft) <br />Tailwater <br />(ft) <br />Entrance <br />Loss Coef. <br />(Ke) <br />180.00 4.00 0.0150 3.00 0.00 0.90 <br /> Culvert Results: <br />Design Discharge = 15.08 cfs <br />Minimum pipe diameter: 1 - 21 inch pipe(s) required <br />Structure #4 (Null) <br /> Null at outlet on Culvert 64 <br />Filename: Exhibit 7 Item 23 Part M 100-Yr 24-Hr Coal Pond.sc4 Printed 03-16-2022 <br />SEDCAD 4 for Windows <br />Copyright 1998 -2010 Pamela J. Schwab <br />Civil Software Design, LLC 8
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