Highway 4 Westbound Lane Shift at Somersville this Week

The California Department of Transportation (Caltrans) and the Contra Costa Transportation Authority (CCTA) are widening State Route 4 (SR-4) through Pittsburg and Antioch. Construction has reached a milestone with the completion of the westbound Somersville Road Bridge.

A Traffic Advisory was issued on August 29, 2012 which described the planned westbound traffic switch at Somersville Road during the week of September 2, 2012. Due to contractor scheduling conflicts, this traffic switch has been delayed and is currently scheduled to occur during the week of September 9, 2012.

Traffic on SR-4 at Somersville Road will be modified during the week of September 10, 2012, and westbound traffic will shift to the newly completed bridge. To accommodate this work, all westbound lanes and several ramps in the vicinity will periodically be closed to traffic overnight. This work is tentatively scheduled to take place on the evening of Thursday, September 13.

The SR-4 Widening Project includes over $570 million in State, Federal, and Contra Costa Measure J sales tax, and other local funds to widen SR-4 from four to eight lanes between Loveridge Road and SR-160. The combined effort of Caltrans and the Contra Costa Transportation Authority on projects in the SR4 corridor will reduce congestion, create a safer roadway, improve operations, and reduce traffic delays on this important east-west connector.

When completed, the SR-4 highway median will be used to extend BART service from Pittsburg/Bay Point to a new station at Hillcrest Avenue in Antioch.

The project web site at: http://widensr4.org will have updated lane closure information.

Caltrans and CCTA appreciate your patience as we work to improve the highways.

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