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 for the Somersville Road project will close all lanes on eastbound SR-4 between Loveridge Road and Contra Loma Boulevard for several hours beginning Thursday, March 8 at 11:59 p.m. until 5 a.m. on Friday, March 9 to move concrete barriers.

In addition, Somersville Road will be closed in both directions between Century Boulevard and Delta Fair Boulevard beginning Thursday, March 8 at 10 p.m. until 5 a.m. Friday, March 9 for the

contractor to switch traffic signals and apply striping.

Signs will be in place to direct motorists to alternate routes. Please be alert and carefully follow all directional signs when encountering detours.

Motorists are advised to expect delays and allow extra time for their commute. Drive with caution through the detour and leave a safe traveling distance between your vehicle and the vehicle ahead of you. Caltrans and CCTA appreciate your patience as they work to improve the highways. For the most current information on all SR-4 corridor closures, visit http://widensr4.org.