After a month of full closures on Highway 4 overnight, drivers through Pittsburg and Antioch will receive a bit of a reprieve this week.

Some lane closures are planned as work continues to expand the road from four to eight lanes, but it won't restrict freeway access, according to a Caltrans news release.

An eastbound lane will be closed between the Contra Loma Boulevard/L Street and Lone Tree Way/A Street exits 11 p.m. to 6 a.m. Monday through Friday.

One eastbound lane will be closed from Hillcrest Avenue to the Highway 160 interchange from 11 p.m. to 5 a.m. overnight Monday. A westbound lane will also be closed on that stretch from 10 p.m. to 3 a.m.

Locally, all lanes of Somersville Road/Auto Center Drive will be closed between the Highway 4 on-ramps on both sides of the freeway 10 p.m. to 5 a.m. overnight Tuesday. The off-ramps at the interchange will remain open, but turning movements will be limited, Caltrans said.

A single lane of Somersville/Auto Center will be closed 9 a.m. to 3 p.m. Tuesday through Friday between Century and Delta Fair boulevards.

There are no closures planned this week for on- and off-ramps.

For more information, visit 4eastcounty.org.

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