ANTIOCH -- Westbound Highway 4 will be closed from midnight to 5 p.m. Sunday morning from Lone Tree Way to Contra Loma Boulevard as contractors work on striping the road, according to a Caltrans news release.

The work is part of Caltrans' work to widen Highway 4 from four to eight lanes through Antioch.

Westbound motorists will be directed off the highway at Lone Tree, and down West 18th Street onto L Street before re-entering the freeway.

The next morning, eastbound Highway 4 will be closed from midnight to 5 p.m. from Somersville Road to Lone Tree.

Motorists are advised to expect delays and allow extra time for their commute.

For information on Highway 4 road closures and advisories, visit http://widensr4.org.

Contact Paul Burgarino at 925-779-7164. Follow him at Twitter.com/paulburgarino.