ANTIOCH, CA — The California Department of Transportation (Caltrans) and the Contra Costa Transportation Authority (CCTA) are constructing two new connector ramps, one connecting westbound State Route (SR)-4 to northbound SR-160, and one connecting southbound SR-160 to eastbound Highway 4 in Contra Costa County.
This construction work will require a traffic shift on southbound SR-160, between Main St and westbound SR-4. The traffic will transition from the currently traveled lane to a newly paved lane which begins near the Main St. on-ramp, which may cause an intermittent closure of the highway. This traffic shift will be initiated on July 16, 2014, approximately between 10 p.m. and 4 a.m.
The Highway 4 projects include improvements that will help revitalize eastern Contra Costa County. The projects expand Highway 4 from four to eight lanes between Loveridge Road and SR-160, add two connector ramps between Highway 4 and Highway 160, and add a BART extension from Pittsburg to Antioch (eBART). This will greatly improve transit accessibility for the region and help reduce traffic congestion and enhance the quality of life for the more than 250,000 residents of eastern Contra Costa County.
The projects have been carefully staged to keep 130,000 vehicles per day moving as major construction and demolition work continue, and include over $1.3 billion in State, Federal, Contra Costa Measure C & J sales tax, regional bridge tolls, and other local funds.
