2008-03-21_PERMIT FILE - C1980007A ‎(7)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 3/21/2008
• Section_Exhibit Name: Exhibit 55B Stream Channel Parameters & Changes Due to Mining-Induced Subsidence
• Media Type: D
• Archive: Yes

0
Table 5
Post-Mining Stream Channel Hydraulic Characteristics
Channel Size Near Mouth
After Subsidence (i) Max. Projected Channel Size
Changes (2)
Basin Number Flow (cfs) Velocity (ft/sec) Width (ft) Depth (ft) Width (ft) Depth (ft)
5 4.2 2.9 6 0.3 1 0.1
6 2.1 2.7 5 0.2 1 0.0
26 4.9 2.9 7 0.3 1 0.0
27 2.2 2.7 5 0.2 1 0.0
28 2.1 2.7 5 0.2 1 0.0
29 4.9 2.9 9 0.5 3 0.2
30 2.1 2.7 5 0.2 1 0.1
31 2.0 2.7 4 0.2 0 0.0
32 13.3 3.2 14 0.8 4 0.4
33 2.4 2.7 5 0.2 1 0.0
35 64.0 3.8 29 0.9 7 0.2
36 25.8 3.5 17 0.7 3 0.2
37 35.0 3.5 ND ND ND ND
Maximum values resulting from the maximum changes in slope due to subsidence.
These values represent estimated maximum channel size changes for the subject basin.