2017 Storm Slide Repair Mt. Veeder Rd. MPM 5.1 RDS 19-13


  • Status: Evaluation/Review
  • Contact: Dewey Phan
  • Publish Date: February 25, 2021

Project Scope

Damage was caused to Mt. Veeder Road MPM 5.1 from a storm event that occurred in Napa County in February 2017. Intense rainfall saturated the embankment causing an approximately 30-foot downslope slide and damage to approximately 320-foot-long segment of the roadway.  

The project proposes to reconstruct the road with a cast-in-drilled-hole (CIDH) concrete retaining wall that is 400’ long. The wall height varies from 4 feet to 10 feet and the pier depth for the 45 concrete-drilled piles (24 inches in diameter) is 20 feet. Best Management Practices (BMP) including erosion/sediment control is also part of the design.

Project Map

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


Contractor shall possess a Class A license at the time of contract award. The Engineer's estimate is $1,250,000. 

Bid Documents

The plans and specifications are available in the link below to view or download.  The mandatory Bidder's List is available now 03-10-21.  Addendum 1 was added 03-11-21.  The bid opening was March 18, 2021 at 11:30.  The subcontractors lists have been posted.  The project is under Evaluation/Review.  The bid tabulation has been posted.

Total Base Bid
Piazza Construction - Penngrove, CA
Maggiora & Ghilotti - San Rafael, CA
Granite Construction Co. - Ukiah, CA
Gordon N. Ball, Inc. - Alamo, CA
Pat Nelson Construction - Petaluma, CA
Bridgeway Civil Constructors - Vacaville, CA
Suulutaaq, Inc. - Suisun City, CA
Azul Works, Inc. - San Francisco, CA
Ghilotti Construction Co. - Santa Rosa, CA
Thompson Builders - Novato, CA
Marshall Brothers Enterprises - Livermore , CA