Bailey Road/SR4 Interchange Pedestrian & Bicycle Improvement Project

The work to be done generally consists of widening the SR4 westbound diagonal off-ramp, installation and modification of traffic signals, removal of the SR4 westbound loop off-ramp, storm drain modifications, and installation of sidewalk along Bailey Road.


Accepting Bids

Prebid Date11/2/20 10:00 am

Bid Date11/17/20 2:00 pm

Company & Contacts

Contra Costa County Public Works Department

Sherri Reed


Contra Costa County


Engineer’s cost estimate: $4,126,000

A virtual pre-bid meeting will be held on Monday, November 2, 2020, at 10:00 a.m. via Zoom to cover project construction and the DBE requirements. Prospective bidders attendance is recommended but not mandatory. Virtual meeting instructions for the Zoom meeting can be found on the Contra Costa County Public Works Department’s website at