2016-08-01_PERMIT FILE - C1981010A

• Permit No: C1981010A
• IBM Index Class Name: Permit File
• Doc Date: 8/1/2016
• Doc Name: page 4-172 to 4-222z
• Section_Exhibit Name: 4.8 Hydrologic Impacts
• Media Type: D
• Archive: Yes

Table 4.8-7 Embankment Designs (continued).
Principal Spillway
Stage (ft) 11.7(1) 15.5(1) 14.0(1) 13.3(1) 10.0(1) 11.3(1) 13.0(1) 16.8
Elevation (ft) 6914.7 6900.5 6882.0 7233.3 6820.0 6873.3 7187.0 7287.0
Diameter -d (in)
Emergency Spillway
Middle
Middle
Middle
East
West
Flume
Flume
Flume
Horse Middle
East Horse Deal
Sedimentation Pond:
#1 (2)
#2
#3 (2)
#1 Enlarged Flume #1 (2)
Flume #1 (2) (3) (4)
? Elevation (ft)
6914.7
6900.5
6882.0
7233.3
6820.0
Elevation Upstream
6903.0
6885.0
6868.0
7227.0 6810.0
6862.0 7186.0 7270.2
Toe (ft)
0.5
0.5
0.5
0.0
Principal Spillway
Stage (ft) 11.7(1) 15.5(1) 14.0(1) 13.3(1) 10.0(1) 11.3(1) 13.0(1) 16.8
Elevation (ft) 6914.7 6900.5 6882.0 7233.3 6820.0 6873.3 7187.0 7287.0
Diameter -d (in)
Emergency Spillway
Stage (ft)
11.7(1)
15.5(1)
14.0(1)
13.3(1)
10.0(1)
11.3(1)
13.0(1)
16.8
? Elevation (ft)
6914.7
6900.5
6882.0
7233.3
6820.0
6873.3
7187.0
7287.0
c Width -b (ft)
5.9
10.0
9.0
0.5
0.5
0.5
0.0
d
Maximum W.S.
6916.4
6904.1
6886.0
7236.5
6821.8
6875.0
7187.3
7288.9
Elevation (ft)
25 -Yr, 24 -Hr Event
Top of Embankment
6918.5
6906.3
6888.0
7237.5
6824.0
6876.4
7189.0
7290.0
Elevation (ft)
Freeboard (ft)
2.1
2.2
2.0
1.0
2.2
1.4
1.7
1.1
Note: Elevations are based on current topographic
information obtained from aerial photographs.
Actual elevations will vary according to actual field
conditions after topsoil removal but relative elevations should remain the same.
(1) Single open -channel design.
(2) As -built information.
(3) West Horse is a mostly incised structure with a small (3 ft.) embankment
..c -qb (4) The Deal Gulch embankment is 6.0 feet tall as measured from the upstream toe. The remainder of the capacity comes from the incised portion
page revised August 8, 2006, Deal Gulch As -built
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