Highway 4 full freeway closure between A Street and Somersville Thursday and Friday evenings
The California Department of Transportation (Caltrans) and the Contra Costa Transportation Authority (CCTA) are widening State Route 4 (SR-4) through Pittsburg and Antioch. As part of this construction work, the contractor will be installing overhead sign structures that span westbound SR-4. In order to ensure crew and public safety during this work, the contractor will close all lanes of SR-4 in the westbound direction between Lone Tree Way/A Street and Somersville Road/Auto Center Drive on Thursday and Friday evenings, June 27 and 28 from 11:59 pm to 3:00 am.
The detour for this work will be as follows:
Westbound motorists will be directed off the highway at the Lone Tree Way/A Street exit, right on A Street, left on 18th Street, left on L Street, right on Sycamore Drive, left on Somersville Rd./Auto Center Drive and right onto the on-ramp to SR-4. For detour map, please see attachment.
The Highway 4 projects include improvements to the entire project corridor that will help revitalize eastern Contra Costa County. The projects expand Highway 4 from four to eight lanes between Loveridge Road and SR-160, and add a BART extension from Pittsburg to Antioch (eBART). The projects will also expand the highway from two to four lanes from Lone Tree Way to Sand Creek Road.
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, Regional Bridge Toll, and Contra Costa Measures C & J sales tax funds.
Caltrans and CCTA appreciate your patience as we work to improve the highways. For the most current information on all SR-4 corridor closures please visit our website at: http://4eastcounty.org.