NEWS RELEASE
Date: February 27, 2025
District/Agency: Solano Transportation Authority (STA) |Caltrans District 4-Bay Area
Contact: Sean Person (707) 399-3217, Alexander Tidd (510) 421-3168
SOLANO COUNTY – Solano Transportation Authority (STA), in partnership with the City of Vallejo, California Department of Transportation, Metropolitan Transportation Commission (MTC), and Solano County, has awarded a contract to Bay Area contractor Ghilotti Construction Company, Inc. for the construction of the State Route (SR) 37/Fairground Drive Interchange Improvements Project. This project will implement a Diverging Diamond Interchange (DDI) design at the intersection of SR 37 and Fairgrounds Drive to significantly improve traffic flow and safety while reducing congestion.
This DDI will be the first in the Bay Area and represents STA’s implementation of an innovative design to improve multimodal accessibility and safety. Beyond improving traffic flow and reducing congestion, this project will also provide continuous Class II bicycle lanes and pedestrian facilities and improve mobility access for historically disadvantaged communities by increasing connections to regional transit, employers, and the greater Vallejo Area.
This Project supports a larger countywide effort to revitalize the Solano County Fairgrounds and encourage economic growth and development, which will develop a mixed-use neighborhood with space for commercial establishments, public facilities, and multi-unit housing along with a transit mobility hub. This interchange project was awarded RM3 bridge toll funds, with Solano County as a project partner.
Construction on the State Route (SR) 37/Fairground Drive Interchange Improvements Project is anticipated to start in late March 2025, with completion by mid-2026. Pre-construction work, including tree removal, will begin in early March 2025. Landscape improvements will be made at the conclusion of construction.
For more information about the project and to view a video explaining the DDI design, please visit https://sta.ca.gov/project/redwood-parkway-fairgrounds-dr-improvement-project/.
Have additional questions or comments on the News: $24.9M Contract awarded- SR37/ Fairgrounds Interchange Improvement Project?
Share your feedback using the comment form below.