UPDATE 2:29 pm -- One lane of Old Highway 41 has reopened, but significant delays remain, as crews repair a gas main break from Barrett Parkway to Ridenour Road in Kennesaw.

The break happened during construction in the area late Wednesday morning.

The closure is expected to last until about 4 pm on Wednesday afternoon, authorities said.

Motorists are advised to use Barrett Parkway and Cobb Parkway to avoid the section of Old US 41 that is affected by the closure.