Buhman Ave Bridge Repair, RDS 20-25


  • Status: Construction
  • Contact: Daniel Basore
  • Publish Date: July 8, 2021

Project Scope

The project is located at Buhman Avenue, adjacent to intersection with Congress Valley Road, Napa, Napa County, CA. The work generally consists of but is not limited to, all labor and materials to construct and install a new concrete arch (open bottom) cast-in-place bridge that will replace the existing culverts.

Project Map

View a map of the project on the County’s Geographical Information System Map.


Each bidder must be licensed as required by law. Contractor shall possess a Class A License at the time of contract award. The Engineer's estimate is $1,050,000. 

Bid Documents

The Notice to Contractors, Plans and specifications are available for viewing or download. Bidder's list as of 07-22-21 has been posted.  Addendum 1 was added 07-23-21. The bid opening was July 29, 2021. The 3 lowest subcontractor lists are posted.  The project was awarded on August 10, 2021 by the Board of Supervisors to Pat Nelson Construction, Inc. of Petaluma, CA for their low base bid of $999,733.

ContractorTotal Base Bid
Pat Nelson Construction, Inc. - Petaluma, CA   $999,733.00
Maggiora & Ghilotti, Inc. - San Rafael, CA$1,087,087.00
Gordon N. Ball - Alamo, CA$1,574,995.00
Valentine Corporation - San Rafael, CA$1,588,369.00
Granite Rock Company - San Jose, CA$1,884,440.00