Dry Creek Road MPM 11.6, RDS 23-20


  • Status: Awarded
  • Contact: Dewey Phan
  • Publish Date: March 30, 2023

Project Scope

During the storm event that started in January of 2023significant damage occurred at Dry Creek Road MPM 11.6, which is located in the unincorporated Napa County. Dry Creek Road MPM 11.6 sustained road and bank failure consisting of downslope failure on the northern side of the roadway, where a portion of the road slid down the hillside threatening the remaining portions of the road. The slide is approximately 100 feet long by 12 feet wide.

The proposed repair to the slide is approximately 124 foot-long concrete grade beam wall supported by 24” concrete CIDH (cast–in-place-drilled-hole) piles.  The grade beam wall depth is between 8’ to 14’.  The piles depth is approximately 30’. There are approximately 60 linear feet of roadway pavement rehabilitation (grinding and re-surfacing existing pavement) and 85 linear feet of roadway payment re-construction (removing old asphalt/aggregate base and replacing with new asphalt/aggregate base).  

Engineer Estimate: $700,000.  The Contractor shall possess a Class A License at the time of contract award.

Bid Documents

The bid documents are available for viewing and download in the link below. Addendum 1 has been added. Addendum 2 has been added with a revised Rev 2 Plans. Planholder list has been updated. The bid opening was May 4, 2023 at 11:30 AM. The sublists have been posted. The project was awarded by the Board of Supervisors on May 16, 2023 to Rege Construction of Cloverdale, CA for their low base bid of $906,618.

ContractorTotal Base Bid
Northwest Demolition, Inc. - San Francisco, CA$665,000.10
Rege Construction - Cloverdale, CA$906,618.00
E.E. Gilbert Construction - Martinez, CA$936,862.08
Piazza Construction - Penngrove, CA$937,222.00
Bridgeway Civil Constructors - Santa Rosa, CA$986,003.00