031_508-D-60044_Amendment_0007_0007.pdf
PDF 932 KB Posted
- Solicitation number
- 140R2021R0004
About this file
This drawing package and related solicitation provide details for the BF Sisk Dam Safety of Dams Modifications, Phase I federal contract opportunity. The Bureau of Reclamation is seeking construction services to address issues with select foundation materials at the BF Sisk Dam through the installation of shear keys, stability berms, and spillway modifications. This work aims to prevent dam embankment destabilization, reduce safety concerns, and ensure water supply deliveries in the event of seismic activity. Drawing details include plans, sections and zone delineations for the construction of berms and placement of geotextiles and soil/rock materials. Solicitation 140R2021R0004 has an anticipated award date in 2021 for these critical dam infrastructure upgrades at the BF Sisk facility.
View the file
Other files
Show all 44
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
433445 442 439 436
45047
A
LW
A
YS
T H
IN
K
S A
FE
TY
SHEET
D
C
B
A
D
C
B
A
B U
R
EA
U O
F R
EC
LA
M
A
TI
O N
U .S
D
EP
A R
TM
EN
T
O F
TH
E
IN
TE
R
IO
R
LAR M TA IOCE N
C A D
S
YS
TE
M
A ut oC A D
4.
0s C A D
F
IL
EN
A M
E
5- D
-6
-R
D -1
.D W
G
LA
S T
S A V
ED
D A
TE
-1 0-
LA
S T
S A V
ED
B Y
C S
TR
IC
K
LA
N D
C
EN
TR
A L
V A
LL
EY
P
R O
JE
C T
W
ES
T S A N
J O
A Q
U
IN
D
IV
IS
IO
N
B
F.
S
IS
K D
A M
S O
D M
O D
IF
IC
A
TI
O N
S
PH
A S E
I S W
SW145 BERM INTERNAL
ZONING
PLAN, SECTIONS AND
DETAILS
DENVER, CO 2021-05-28
60044 0 10' 20'
60044 0 10' 20'
2A
REFERENCE DRAWINGS
Survey Control and Alignment_ _ _ _ _ _ _ _ _ _ _ 805-208-60101 SW145 Shear Key Excavation Plan and Section _ _ _ 805-D-60039 SW145 Berm Plan and Profile _ _ _ _ _ _ _ _ _ _ _ _ 805-D-60042 SW145 Plan, Section and Details_ _ _ _ _ _ _ _ _ _ _805-D-60044 SW145 Berm Sections _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _805-D-60045
LEGEND
Elevation reference point
Zone 2A
Zone 4A
Zone 9A
Geotextile
NOTES
1. All dimensions are in feet unless otherwise noted.
2. Contour interval is 5 feet.
3. For survey information, see (805-208-60101).
4. See table on (60045) for transitions of blankets over the upstream bench.
5. Details represent left and right abutments. Left abutment shown.
6. Zone 4A upper chimney is projected for display in Section E.
Zone 4A upper chimney will be placed to El. 360.0 within the center portion of the SW145 dam section, between approximate dam stations 141+68 and 146+85.
7. Zone 2A upper chimney is projected for display in Section E and Section F.
8. Section E and Section F are cut along the same alignment.
Section F represents an enlarged view of a portion of Section E.
9. Bench elevations shall be defined by control points 14573 through 14591 on (60039), or as approved by the COR.
10. Geotextile runout to extend 5.0 feet beyond soil/rock interface at bottom of shear key excavation, and 5.0 beyond shoulder of shear key excavation.
11. Zone 2A upper chimney shall be placed downstream of exposed existing blanket zones after removal of existing rock blanket. Zone 2A upper chimney shall extend 2.0 feet above existing Zone 2 blanket, or to 3.0 feet below top of berm, whichever is lower.
12. Topsoil not shown.
Bench surface, see Note 9
10.0
4A 2A 9A
2A
Excavated surface, see (60039)
0 100'50'
Geotextile
See Detail 1
60044 0 100'50'
3.0
4A
2A
9A
Bench blankets
4A
2A
9A
10.0
10.0
3.0 3.0
3.0
See Section F and Note 8
60044
2A
Geotextile, see Note 10
0 10' 20'
5.0
5.0
Excavated surface, see (60039)
Approximate limit of Zone 4A upper chimney
Top of Zone 4A upper chimney (projected), El. 360.0, see Note 6
Approximate location of Zone 2A separator chimney, see (60081)
2A
2A 4A
2A
9A
Bench blankets
Top of Zone 2A upper chimney (projected)
Top of Zone 2A upper chimney (projected)
3.0
Zone 4A upper chimney not shown, see Note 6
Top of Berm, see (60042)
Top of Berm, see (60042)
3.0
Shoulder of shear key excavation, El. 445.0, see Note 10
Footprint of chimney, see Note 11
Limits of stripping
Limits of berm construction
Bottom of excavation slope
Top of excavation slope
Toe of dam after rock blanket removal
5.0 5.0
LImits of stripping
Inferred bedrock surface
S ta
6+
Lower chimneys
Bench blankets
Upper chimney
Top of shear key excavation
-1 0-
D
U pd at ed r ef er en ce d ra w in g nu m be rs o n ca llo ut s fo r se ct io ns
H
J, K
L, a nd
M
Re le as ed
Specifications No. 20-C0909 Amendment No. 0007
File details come from the government source that posted it. Updated .