Solano Transportation Authority (STA), and its project partners, Caltrans, and
the Metropolitan Transportation Commission (MTC) are working together on major
improvements to the Interstate 80, Interstate 680 and State Route 12
multi-year, multi-phase project is located in Solano County. The southwest
project limits are near Fairfield's Green Valley and Cordelia neighborhoods,
the northeast project limits near Suisun City.
completed, the project will improve safety and travel times for motorists on
I-80, I-680, Highway 12 and adjacent city streets. Features include a
realignment of I-680, an improved direct connector route between I-80 and
Highway 12, construction of new interchange overcrossings, new entrance/exit
ramps, bike and pedestrian safety improvements, and the extension of some local
streets leading to I-80 and Highway 12.
project will benefit citizens by improving travel times, reducing cut-through
traffic on local streets, and enhance safety by streamlining connections for
motorists transitioning between these three major state routes linking the Bay
Area, the Napa Valley, and Sacramento.
The Final Environmental Impact Report/Environmental Impact Statement (EIR/EIS) is available for public review.
multi-year project includes several environmentally cleared design packages. Package I through Package VII.
February 2017 Project Status Update
The groundbreaking ceremony for package 1 (Green Valley
Interchange Project) was held on June 2nd. Construction could be completed as early as summer 2016. Package
II through Package VII will be constructed and completed subject to funds
available. Each package will be constructed under separate contracts with each
subsequent package starting and finishing in 2015 and beyond.
On March 14, 2012, the STA Board determined that the
Acquisition of Properties for the Interstate 80/Interstate 680/State
Route 12 Interchange Project Initial Construction Package will not have a
significant effect upon the environment and is exempt further
procedures under the California Environmental Quality Act (CEQA).
Download the Notice
of Determination for the "Acquisition of Properties for the Interstate
80/Interstate 680/State Route 12 Interchange Project Initial
Construction Package, 03-14-2012.
Caltrans Traffic Advisory, click here
Download the Bike Fact Sheet, click here
To view more information about this project, click here.