The existing State Route 160/Highway 4 interchange currently includes only two of the four possible interchange movements: the eastbound Highway 4 to northbound State Route 160 connector ramp, and the southbound State Route 160 to westbound Highway 4 connector ramp. The State Route 160/Highway 4 Direct Connector Ramps project will construct two new connector ramps, one connecting westbound Highway 4 to northbound State Route 160, and one connecting southbound State Route 160 to eastbound Highway 4.
The project scope includes adding an additional 12-foot auxiliary lane to the outside of existing State Route 160 in both directions between the State Route 160/Highway 4 Interchange and the East 18th/Main Street Interchange, as well as building a soundwall extension and retaining walls. The southbound State Route 160/Highway 4 separation structure will accommodate a future BART extension in the median of Highway 4.
PROJECT ALLOCATED BUDGET
The project is funded entirely by $50 million in Bridge Toll Funds.
Construction began in March 2014 and is expected to be complete in mid-2016, weather depending.
PROJECT UPDATE – March 2015
- Completion of southbound SR4/SR160 separation bridge over Highway 4 in Summer 2015.
Recently Completed Work:
- Completed falsework for the northbound SR 160 viaduct.
- Began construction of the southbound SR 160 viaduct falsework.
- Imported 50% of soil needed for the project.
- Place deck concrete for southbound SR4/SR160 separation bridge over Highway 4.
- Place concrete for the northbound SR 160 viaduct.