047_508-D-60073_Amendment_0007_0007.pdf
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- Solicitation number
- 140R2021R0004
About this file
This document is the plan and profile drawing for modifications to the spillway berm access road as part of the BF Sisk Dam Safety of Dams Modifications, Phase I project. The project includes construction of shear keys, stability berms, and spillway modifications to address issues with select foundation materials and help prevent dam embankment destabilization, reduce safety concerns, and maintain water supply deliveries. The drawing shows the existing ground contours and final grade contours for the spillway berm access road. Notes provide specifications for the gravel road surface, rock blanket, cut slopes, and reference other contract drawings. The project is being conducted by the Bureau of Reclamation within the United States Department of the Interior.
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Text version
0+
1+
2+
3+00
4+00
4+23.11
L=253.92 =119.2488 R=122.00 T=208.15
475500
S86° 26' 22.65"W
114.09'
S32° 48' 33.00"E
55.10'
N 1848353.9 E 6392324.2
42+00 43+00 44+00 45+00
Sta. 4+19
Sta. 0+15
E 6, 2, N 1,848,150
E 6, 2, N 1,848,350
E 6, 2, N 1,848,400
E 6, 2, N 1,848,300
PC
1+
.0
PT: 3+68.01
0+001+002+003+004+004+23.11
See Note 8 Existing ground surface
Access road final grade, see Note 7 Sta. 4+19 El. 504.5
Sta. 0+15.57 El. 456.3
12.0%
Excavated surface
Excavated surface, see (60072)
See Note 7
Existing ground surface
Existing ground surface
Spillway
Final grade SW145 berm
NOTES
1. All dimensions are in feet unless otherwise noted.
2. Contour interval is 5 feet.
3. Grade to match surrounding slopes.
4. Spillway access road shall be gravel surfaced at completion of contract to a width of 20 feet, as shown in (60125) and (60126).
5. Refer to (60061) for new spillway section details.
6. For survey information, see (805-208-60101).
7. Rock blanket to have thickness of 2.0 feet perpendicular to the slope.
8. Internal zoning not shown. See (60074) for internal zoning details.
LEGEND
Northing/Easting coordinates
Existing ground contours
Final grade contours
See Note 3
0 20' 40'10'
0 20' 40'10'
1.5:1
1.5:1
Sta. 43+84.98 Chute headwall
Chute transition, see (60065)
10'
REFERENCE DRAWINGS
Survey Control and Alignment _ _ _ _ _ _ _ 805-208-60101 Spillway Tunnel Extension Plan and Profile_ _ _ _805-D-60061 Spillway Chute Modification Plan and Profile _ _ _ 805-D-60065 Spillway Berm Internal Zoning_ _ _ _ _ _ _ _ _ _805-D-60074 Permanent Access Roads (1 of 2) _ _ _ _ _ _ _ _805-D-60125 Permanent Access Roads (2 of 2) _ _ _ _ _ _ _ _805-D-60126
Extents of buried spillway conduit not shown, see Note 5
Access road axis
See (60124) for grading details
Rock blanket
Rock blanket
2.0 Rock blanket
2:1 2:1
Excavated surface
Access road
℄ Spillway
10.0 50.0
2.0 Rock blanket
Rock blanket, see Note 7
0 20' 40'10' 60073
Slope 1:1
0 20' 40'10' 60073
See Note 8
See Note 4
See Note 4
See Note 5
SW145 berm, contours not shown
SW145 berm
Spillway drains not shown
Access road axis
℄ Spillway
See Note 4
Excavated surface See Note 4
50'
See Detail on (60074)
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SPILLWAY BERM ACCESS
ROAD
PLAN AND PROFILE
DENVER, CO 2021-06-02
-1 0-
D
U pd at ed
N ot e 4.
Re le as ed
Specifications No. 20-C0909 Amendment No. 0007
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