I-80/I-680/SR-12 Interchange

Package 1 mainly oversaw the construction of a new Green Valley Road overpass across I-80 along with a new connector road that connects I-80W to SR-12W.

Current Status

This package was completed in 2016.

Package 2 will see the construction of a new connector from SR-12E that will connect to I-80E, along with new exits from SR-12E and I-80E to reach Green Valley Road.

Current Status

Construction is expected to begin in sometime in 2020 after the California Transportation Commission votes to allocate funds for the project's construction during their 12-13 August 2020 meeting.

Due to an unexpected $16.7M cost increase as a result of soil conditions and drainage requirements, STA will reprogram $16.7M planned for the I-80 Express Lanes project to fund the construction of the interchange. This cost increase would have been covered by Regional Measure 3 (RM 3) funds, but due to ongoing litigation, the funds cannot be given at this time. Once the litigation is settled, the funds will be used to pay for the Express Lanes instead.

Package 3 will see:

• the construction of a new two lane I-680S interchange

• the realignment of Lopes Road

• the creation of a partial interchange at Red Top Road.

This package will also prepare for the realignment of I-680N in package 4.

The project's right-of-way acquisitions (i.e. business relocation, demolitions, utility relocations) are funded by RM 3. The construction of this package will not happen without funding from the SB 1 gas tax.

Current Status

65% designed, awaiting funding

Package 4 will see:

• the construction of a new connector from I-680N to SR-12 and I-80E

• the removal of Neitzel Road

• the widening of I-80W

• new off-ramps at I-80W and Green Valley Road

• new ramps at I-80E and Green Valley Road

• new on-ramp at I-80W and Suisun Valley Road

Current Status

Awaiting funding

Package 5 will see:

• the construction of a partial interchange between SR-12, Red Top Road, and Business Center Drive

• the connection between Business Center Drive and Red Top Road

Current Status

Awaiting funding

Package 6 will see:

• the creation of an HOV (high-occupancy vehicle) lane from I-680N to I-80E

Current Status

Awaiting funding

Package 7 will see:

• the construction of a connector from I-80E to I-680S

• the construction of a connector from I-680N to I-80W

• the construction of a connector from SR-12W to I-680S

• the replacement of the Union Pacific Railroad Cordelia Underpass

• the widening of SR-12E towards Suisun City

Current Status

Awaiting funding