Highway 4 Full Freeway Closure in Antioch this Weekend
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 various drainage systems across the existing highway. 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 and Contra Loma Boulevard, and the westbound on-ramp from Lone Tree way to SR-4 on Saturday evening, September 22 from 11:59 pm until 6:00 am.
The contractor will also close all lanes of SR-4 in the eastbound direction between Contra Loma Boulevard and Lone Tree Way on Sunday morning, September 23 from 1:00 am until 7:00 am.
The detours for this work will be as follows:
o Westbound motorists will be directed off the highway at Lone Tree Way, right on A Street, left on 18th Street, left on L Street, and right on westbound SR-4 on-ramp.
o Eastbound motorists will be directed off the highway at Contra Loma Boulevard, right on Contra Loma Boulevard, left on Fitzuren Road, right on G Street, left on Putnam Street, left on Lone Tree Way, right on eastbound SR-4 on-ramp.
Motorists are advised to expect delays and allow extra time for their commute. Please drive with caution through the detours and leave a safe traveling distance between your vehicle and the vehicle ahead of you. 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 web site at: http://widensr4.org.