2019-03-04_PERMIT FILE - C1981008A

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 3/4/2019
• Doc Name: Pond 013 Postmining SEDCAD Modeling
• Section_Exhibit Name: Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-32
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
r— ... ; h# iooa _onln o—i� i c..ti.. k
7
Structure Detail:
Structure #3 (Vegetated Channel)
Ditch C-9
Trapezoidal Vegetated Channel Inputs:
Material: Smooth brome
Left Right
Bottom Retardants
Freeboard Freeboard Freeboard
Limiting
Sideslope Sideslope Slope (%) Classes
Width (ft) Ratio Ratio
Mult. x
Depth (ft) % of Depth
Velocity
(fps)
4.65 cfs
(VxD)
4.65 cfs
3.00 2.0:1 2.0:1 3.2 D, B
0.30
7.0
Vegetated Channel Results:
Structure #5 (Culvert)
Culvert C177 at 0+25 in Ditch C-9
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater () ft Loss Coef.
(ft) (Ke)
20.00 2.50 0.0140 1.50 1.00 0.9(
Culvert Results:
Design Discharge = 4.65 cfs
Minimum pipe diameter: 1 - 15 inch pipe(s) required
Structure #4 (Pond
Continuous flow 1000 gpm system
Pond Inputs:
Filename: Pond 013 Postmine 10 24 sed w 1000 gpm higher.sc4 Printed 03-09-2016
Attachment 2.05.3(3)-32 Revision Date: 03/09/2016
Page 13 Revision No.: TR -70
Stability
Class D w/o
Freeboard
Stability
Class D w/
Freeboard
Capacity
Class B w/o
Freeboard
Capacity
Class B w/
Freeboard
Design Discharge:
4.65 cfs
4.65 cfs
Depth:
0.50 ft
0.80 ft
0.93 ft
1.23 ft
Top Width:
5.00 ft
6.20 ft
6.71 ft
7.91 ft
Velocity:
2.32 fps
1.03 fps
X -Section Area:
2.00 sq ft
4.51 sq ft
Hydraulic Radius:
0.383 ft
0.630 ft
Froude Number:
0.65
0.22
Roughness Coefficient:
0.0605
0.1896
Structure #5 (Culvert)
Culvert C177 at 0+25 in Ditch C-9
Culvert Inputs:
Max. Tailwater Entrance
Length (ft) Slope (%) Manning's n Headwater () ft Loss Coef.
(ft) (Ke)
20.00 2.50 0.0140 1.50 1.00 0.9(
Culvert Results:
Design Discharge = 4.65 cfs
Minimum pipe diameter: 1 - 15 inch pipe(s) required
Structure #4 (Pond
Continuous flow 1000 gpm system
Pond Inputs:
Filename: Pond 013 Postmine 10 24 sed w 1000 gpm higher.sc4 Printed 03-09-2016
Attachment 2.05.3(3)-32 Revision Date: 03/09/2016
Page 13 Revision No.: TR -70