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2022-07-12_PERMIT FILE - C1981019 (24)
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2022-07-12_PERMIT FILE - C1981019 (24)
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Last modified
5/10/2023 9:20:49 AM
Creation date
5/10/2023 9:16:13 AM
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Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Permit File
Doc Date
7/12/2022
Doc Name
Sediment 26 Pond Sediment Control During Mining
Section_Exhibit Name
Volume 18 Exhibit 7 Item 23 Part C
Media Type
D
Archive
No
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Stability <br />Class D w/o <br />Freeboard <br />Stability <br />Class D w/ <br />Freeboard <br />Capacity <br />Class B w/o <br />Freeboard <br />Capacity <br />Class B w/ <br />Freeboard <br />Design Discharge: 40.90 cfs 40.90 cfs <br />Depth: 0.57 ft 3.82 ft 0.90 ft 4.15 ft <br />Top Width: 14.28 ft 27.28 ft 15.59 ft 28.59 ft <br />Velocity: 5.46 fps 3.30 fps <br />X-Section Area: 7.49 sq ft 12.39 sq ft <br />Hydraulic Radius: 0.515 ft 0.774 ft <br />Froude Number: 1.33 0.65 <br />Roughness Coefficient: 0.0425 0.0923 <br />Structure #8 (Vegetated Channel) <br /> D-4 Ditch 0+00 to 7+50 <br /> Trapezoidal Vegetated Channel Inputs: <br />Material: Tall fescue <br />Bottom <br />Width (ft) <br />Left <br />Sideslope <br />Ratio <br />Right <br />Sideslope <br />Ratio <br />Slope (%)Retardance <br />Classes <br />Freeboard <br />Depth (ft) <br />Freeboard <br />% of Depth <br />Freeboard <br />Mult. x <br />(VxD) <br />Limiting <br />Velocity <br />(fps) <br />12.00 2.0:1 2.0:1 5.9 D, B 3.68 6.0 <br /> Vegetated Channel Results: <br />Stability <br />Class D w/o <br />Freeboard <br />Stability <br />Class D w/ <br />Freeboard <br />Capacity <br />Class B w/o <br />Freeboard <br />Capacity <br />Class B w/ <br />Freeboard <br />Design Discharge: 42.78 cfs 42.78 cfs <br />Depth: 0.58 ft 4.26 ft 0.91 ft 4.59 ft <br />Top Width: 14.32 ft 29.04 ft 15.64 ft 30.36 ft <br />Velocity: 5.59 fps 3.40 fps <br />X-Section Area: 7.65 sq ft 12.58 sq ft <br />Hydraulic Radius: 0.524 ft 0.783 ft <br />Froude Number: 1.35 0.67 <br />Roughness Coefficient: 0.0420 0.0903 <br />Structure #5 (Pond) <br /> Sidehill Pond <br /> Pond Inputs: <br />Initial Pool Elev: 7,166.00 ft <br />Initial Pool: 3.40 ac-ft <br />Perforated Riser <br />Filename: Section 26 25-Year 24-Hour During Mining.sc4 Printed 03-14-2022 <br />SEDCAD 4 for Windows <br />Copyright 1998 -2010 Pamela J. Schwab <br />Civil Software Design, LLC 6
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