Rio Vista Bridge Preservation Project

Project Facts


The $37.1 million project includes cleaning and painting the drawbridge on State Highway 12 over the Sacramento River in Rio Vista. This work is scheduled to take three years. All work will be performed under traffic control and the bridge will remain open at all times. One of the walkways will be open to pedestrian-bicycle traffic around the clock.

The contractor must accommodate the drawbridge operation at all times. The U.S. Coast Guard requires commercial and recreational vessels to provide four-hour advance notice to raise the drawbridge.

Construction Ahead

  • From 9 p.m. Sunday, February 3 to 5 a.m. Monday, February 4
  • From 9 p.m. Monday, February 4 to 5 a.m. Tuesday, February 5

Project Benefits

The Rio Vista Bridge Preservation Program involves two construction projects. The first project is underway and calls for cleaning and painting the drawbridge. The existing coating system is deteriorating at various locations of the bridge. Completion of this $37.1 million project is expected in winter 2020.

The Rio Vista Bridge, officially named the Helen Madere Memorial Bridge, is located in Sacramento and Solano counties, about one-half mile from the Highway 12/Highway 160 junction. The vertical lift bridge was built in two stages between 1943-1945 and 1957-1960. It carries about 23,000 vehicles per day.


The second project, which will cost an estimated $11.9 million to $19.2 million, will upgrade the mechanical and electrical operation of the bridge. Work is tentatively scheduled to start in spring 2022 and take two construction seasons to complete. This schedule is subject to change.

Funding Breakdown

Project 1 Painting:  $37.1 million
Project 2 Mechanical and Electrical Upgrades:  $11.9 million to $19.2 million

Cost Estimate

Support Cost:  $7,900,000
Capital Cost:  $24,250,000
Total Project Cost:  $32,150,000


Begin Construction:  08/13/18
Complete Construction:  1/12/22

Project Contacts

Dennis Keaton, PIO, (530) 741-5474
Mike Cook, Project Manager, (209) 470-2909