TO: Board of Supervisors
FROM: Steven Lederer, Director of Public Works
REPORT BY: Dewey Phan, Assistant Engineer
SUBJECT: Construction Contract Award and Budget Amendment for the "Silverado Trail Bridge Over Bell Canyon Creek Guardrail Project," RDS 23-37
RECOMMENDATION
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Reject a bid for non-responsiveness; award a Construction Contract to Bridgeway Civil Constructors in the amount of $418,285 for the Silverado Trail Over Bell Canyon Creek Guardrail Project (RDS 23-37); approve and authorize Amendment No. 3 to Agreement No. 230084B with ADKO Engineering; and approve a Budget Amendment. (Fiscal Impact: $632,508 Expense; SB-1 Non-Operating Special Revenue Fund; Not Budgeted; Discretionary)
[4/5 vote required]
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BACKGROUND
At the intersection of Silverado Trail North and Glass Mountain Road (at Bell Canyon Creek Bridge), the existing metal beam guardrail has been damaged by drivers, is too short, and does not meet current standards. The bridge at this site consists of a single span 31.0-foot-wide reinforced concrete slab bridge. For this project, the Contractor will widen the upstream side of the bridge by two feet, coordinate with PG&E to relocate a natural gas pipeline, and widen the downstream side by two feet for a total roadway width of 36'-10." This will allow the contractor to install wider bridge barrier rails and keep the same travel way width on Silverado Trail. The scope of work will also include temporary traffic control, removal of the existing metal beam guardrail, construction of new barriers on the east and west side of the roadway above the existing bridge widening, construction of Midwest Guardrail Systems (MGS) energy absorbing terminal end treatments, and other related site work.
The Board authorized advertising for the project on February 7, 2023, and the Clerk of the Board opened bids on March 21, 2024, with the results listed below:
JS Builders, Inc. Palo Cedro, CA $396,533
Bridgeway Civil Constructors Vacaville, CA $418,2...
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