CTC Approves Fully Funding the Construction of I-80/I-680/SR 12 Interchange Project

August 14, 2020



SUISUN CITY, CA – On August 13, 2020 the California Transportation Commission (CTC) approved the allocation of $69.9 million of Multi-Funded Senate Bill 1 (SB 1) Trade Corridor Enhancement Program (TCEP)/State Transportation Improvement Program (STIP) Funds for the I-80/I-680/Route 12 Interchange Package 2A Project. These funds, combined with regional bridge toll funds, is the last step to enable the next package of the Interchange to begin construction.

“This project will greatly enhance the flow of traffic and improve safety for commuters and freight traffic traveling through this busy interchange,” says STA Board Chair and Vacaville Mayor Ron Rowlett. “Additionally, this project will jump start Solano County’s economy by getting essential workers back to work on major infrastructure projects, and we want to thank our partners at the CTC, Caltrans, and the Metropolitan Transportation Commission for helping improve the safety for everyone traveling on this vital stretch of I-80.”

Package 2A will replace the existing single lane Eastbound State Route (SR) 12 connector to Eastbound I-80 with a new two-lane connector. Additionally, Phase 2A will construct direct on and off ramps from I-80 to Green Valley Road to help improve traffic safety and reduce the frequency of vehicle accidents.

The Solano Transportation Authority (STA) and the California Department of Transportation (Caltrans) are planning a virtual Public Information Meeting prior to the construction of the project, which is scheduled to begin in early September 2020. Total construction time for the I-80/I-680/SR12 Interchange Phase 2A Project is estimated to take two years.

For more information on this project, please visit Caltrans’ project website: and STA’s project website:


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