ANTIOCH -- Drivers headed east through Antioch on Highway 4 during the overnight hours this week should brace for delays.

All lanes of the freeway in that direction between the Somersville Road/Auto Center Drive and Lone Tree Way/A Street exits will be closed from midnight to 4 a.m. overnight Tuesday and Wednesday, according to a Contra Costa Transportation Authority news release.

The contractor for the project to widen Highway 4 from four to eight lanes will be setting precast concrete deck panels on the new Highway 4 bridges over Contra Loma Boulevard/L Street and pouring concrete for the new eastbound bridge over Lone Tree/A.

Additionally on the local streets, all lanes of Contra Loma/L will be closed at the freeway undercrossing from 10 p.m. to 5 a.m. overnight Tuesday through Friday.

Construction work this week also calls for some overnight single lane closures on Highway 4 both eastbound and westbound through Pittsburg and Antioch and ramp closures at Loveridge Road, Somersville/Auto Center and Contra Loma/L.

Farther to the southeast, there will be single lane closures in both directions of Highway 4 between Laurel Road and Sand Creek Road during the day from 7 a.m. to 5:30 p.m. Tuesday through Friday.

For updates, visit http://4eastcounty.org.


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