West Bridge abutement foundation.pdf
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- Solicitation number
- 127EAW21R0006
About this file
This document summarizes a federal contract solicitation for a bridge installation project. The solicitation, number 127EAW21R0006, is being issued by the US Department of Agriculture Forest Service R5-Pacific Southwest Region for the West Lights Creek Bridge Installation Project on the Mount Hough Ranger District of the Plumas National Forest. The construction project value is estimated between $500,000 and $1,000,000. The solicitation is a total small business set aside. All requests for information must be submitted in writing to the Contracting Officer by April 7, 2021. Offerors are expected to visit the project site but failure to do so will not be grounds for claims after award. The scope of work involves foundation improvements including drilling bore holes 10 feet deep and 30 feet apart, with hard bedrock encountered between 14 to 16 feet below ground surface. A spread footer foundation is proposed.
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Text version
D epth of hole - 10 feet ground surface betw een holes
D istance betw een holes -30 feet
B oring 2: G
S E levation 97.5'
B oring 3: G
S E levation 92.5'
H ard B edrock
D epth of hole - 14 feet
H ighly w eathered bedrock
2 feet m in
Step hard bedrock as indicated before placem ent.
T rem ie from bottom of excavation. D o not drop and segregate.
Proposed spread footer
Proposed spread footer
H ard B edrock ground surface betw een holes
C ontrolled D ensity Fill: 3 feet m in or hard bedrock. U se to level up as required.
E xisting C onditions
P roposed foundation im provem ent
W est Side Spread F ooter
97.5'
92.5'
82.5' 83.5'
82' - bottom of footer elevation
- WEST LIGHTS BRIDGE FOUNDATION
FOUNDATION IMPROVEMENT
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3/28/09
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