2010-12-17_REVISION - C1981019 ‎(89)‎

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 12/17/2010
• Doc Name: Exhibit 7 Item 25 Collom Post Mine Channel Design
• Type & Sequence: PR3
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
Structure Detail:
Structure #6 (Nonerodible Channel,
Little Collum Reconstructed Reach 1
Trapezoidal Nonerodible Channel Inputs:
Material: Coarse gravel noncolloidal
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %) Manning's n
Width (ft) Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
12.00 3.0:1 3.0:1 6.8 0.0250
2.00
Nonerodible Channel Results:
/ 1
IL�
Structure #7 (Nonerodible Channell
Little Collum Reconstructed Reach 2
Trapezoidal Nonerodible Channel Inputs:
Material: Concrete, Rubble
Bottom Left Right
w/o Freeboard w/ Freeboard
Design Discharge:
313.09 cfs
Depth:
1.27 ft 3.27 ft
Top Width:
19.63 ft 31.63 ft
Velocity:
15.57 fps
X- Section Area:
20.10 sq ft
Hydraulic Radius:
1.003 ft
Froude Number:
2.71
Structure #7 (Nonerodible Channell
Little Collum Reconstructed Reach 2
Trapezoidal Nonerodible Channel Inputs:
Material: Concrete, Rubble
Bottom Left Right
Freeboard Freeboard Freeboard
Sideslope Sideslope Slope ( %) Manning's n
Width (ft) Ratio Ratio
Depth (ft) % of Depth Mult. x (VxD)
20.00 3.0:1 3.0:1 5.7 0.0240
2.00
Nonerodible Channel Results:
• Filename: LCRC Reach2.sc4 Printed 07 -05 -2009
Exh. 7 -25 -25 Revision Date: 3/15/10
Revision No.: PR -03
w/o Freeboard w/ Freeboard
Design Discharge:
512.04 cfs
Depth:
1.33 ft 3.33 ft
Top Width:
27.99 ft 39.99 ft
Velocity:
16.03 fps
X- Section Area:
31.95 sq ft
Hydraulic Radius:
1.124 ft
Froude Number:
2.64
• Filename: LCRC Reach2.sc4 Printed 07 -05 -2009
Exh. 7 -25 -25 Revision Date: 3/15/10
Revision No.: PR -03