2016-08-08_PERMIT FILE - C1981019A ‎(117)‎

• Permit No: C1981019A
• IBM Index Class Name: Permit File
• Doc Date: 8/8/2016
• Doc Name: Collom Post Mine Channel Design
• Section_Exhibit Name: Volume 18 Exhibit 7 Item 25
• Media Type: D
• Archive: Yes

Table 1 Summary of Channel Desiqn Runs, SEDCAD
Subbasin
Desian Event
Typical
Channel
Slope,
%
Riprap,
mean
dia,
inch,
min.
Qp,
Peak
Flow,
cfs
Channel
Width
and
depth,
ft
Side
slopes
Page
Little Collom Reach 1
100 Year, 24 Hour
5.5%
12
172
12' x 3'
3HAV
Exh. 7-25-11
Little Collom Reach 2
100 Year, 24 Hour
5.5%
9
345
20' x 4'
3H:1V
Exh. 7-25-17
Deer Draw
10 Year, 24 Hour
20.0%
6
12.0
12' x 3'
3H:1 V
Exh. 7-25-24
Bear Draw
10 Year, 24 Hour
14.0%
6
38.7
12' x 3'
3H:1 V
Exh. 7-25-30
Badger Draw
10 Year, 24 Hour
8.5%
6
19.1
12' x 3'
3H:1 V
Exh. 7-25-36
Marmot Draw
10 Year, 24 Hour
7.0%
3
5.9
12' x 3'
3H:1V
Exh. 7-25-42
Weasel Draw
10 Year, 24 Hour
7.0%
3
14.4
12' x 3'
3H:1V
Exh. 7-25-48
Trib. 1
10 Year, 24 Hour
20.8%
6
12.9
12' x 3'
3H:1V
Exh. 7-25-54
Trib. 2
10 Year, 24 Hour
17.5%
6
4.6
12' x 3'
3H:1V
Exh. 7-25-60
Trib. 3
10 Year, 24 Hour
25.1%
9
7.5
12' x 3'
3H:1 V
Exh. 7-25-66
Trib. 4
10 Year, 24 Hour
14.0%
6
10.2
12' x 3'
3HA V
Exh. 7-25-72
Trib. 5
10 Year, 24 Hour
5.1%
63
8.2
12' x 3'
3HA V
Exh. 7-25-78
Exh. 7-25-2 Revision Date: 7/31/15
Revision No.: PR -04