Nighttime bridge maintenance will continue on the Merritt Parkway in Norwalk through Friday, Nov. 2, according to the state Department of Transportation. Work hours are 8 p.m. to 5 a.m., Monday through Thursday evenings. Work began Sept. 17.

Motorists can expect northbound and southbound lane closures between Exit 38 (New Canaan Ave.) and Exit 39A (Route 7 South) in Norwalk. Traffic control personnel and signs will guide motorists through the work zone.

The project may be extended due to weather delays or other unforeseen conditions.