Project Details

What and Why?
The Solano Transportation Authority and the city of Rio Vista have been exploring alternatives for improving long-term transportation mobility on State Route 12 through Rio Vista and across the Sacramento River. The existing Sacramento River Crossing at Rio Vista is a lift bridge that completes a vital link between Interstate 80 and Interstate 5.

The project team is investigating the existing route as well as routes north and south of the airport and a southern corridor along the river bluffs. Operation of the lift bridge causes frequent traffic delays. Through the Rio Vista area, SR 12 is a two-lane facility that has narrow shoulders in many locations and lacks turn lanes at many intersections. In addition, the limited vertical clearance between the Sacramento River and the existing lift bridge requires that the bridge be operated to allow passage of nearly all water vessels. As the community grows and regional traffic increases, the delays are expected to worsen. Replacement of the lift bridge will eliminate traffic back-ups associated with existing bridge operations.

Where?
The Rio Vista Bridge is a lift bridge located on State Route (SR) 12 and crosses the Sacramento River, creating a vital link between Interstate 80 and Interstate 5.

The neighboring cities are Rio Vista and Isleton.

Will the study result in construction?
No, the preliminary study will not directly result in construction of a new alignment. The study will investigate potential replacement bridge types, alignment alternatives and environmental constraints and will identify potential funding strategies. This study will be used by the City of Rio Vista for right-of-way preservation purposes in a future City General Plan update, and it will supplement a planned SR 12 Major Investment Study that will include the SR 12 Corridor from Interstate 80 to Interstate 5.

How is the study tied to Highway 12?
The SR 12/Rio Vista Bridge Preliminary Study is being conducted in context with the entire SR 12 Corridor. The study will supplement a planned SR 12 Major Investment Study that will include the SR 12 Corridor from Interstate 80 to Interstate 5.

How much does the study cost and how is it funded?
The $380,000 preliminary study is funded by the City of Rio Vista through Federal Transportation Demonstration funds.

Preliminary study partners?
Solano Transportation Authority is working with the City of Rio Vista to complete the preliminary study.