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Background

Eastern Contra Costa County is growing rapidly, with a 53 percent increase in households and a 132 percent increase in jobs expected by 2025. The Highway 4 corridor improvements include the highway, its interchanges, and affected local roadways from Pittsburg to Antioch as well as the Sand Creek Interchange and Balfour Road projects near Brentwood. These projects represent an investment in the infrastructure of East Contra Costa County totaling over a billion dollars. The main highway corridor is being widened from four to eight lanes.  One lane in each direction will be dedicated to car pools and transit vehicles. But this isn’t just another highway widening project. Transit through the corridor will also be improved when the new eBART line is constructed. The project will add 10 miles of eBART track from Pittsburg Bay Point to a new Antioch station at Hillcrest Avenue.

Together, the highway and BART projects are a joint endeavor between the Contra Costa County Transportation Authority (CCTA), the California Department of Transportation (Caltrans), the Metropolitan Transportation Commission, the California Transportation Commission, and the Federal Highway Administration. CCTA is funding about $272 million of the project through Measure J, a half-cent sales tax reauthorized by Contra Costa voters in 2004, and $66 million of the project through the previous Measure C.

The investment in East County represented by the Highway 4 corridor projects will not only provide state-of-the-art transportation and transit infrastructure, but will also act as a catalyst for further economic growth, sustainable land-use development, and improved quality of life for the region’s 225,000 residents.