FAIRFIELD — The bridge that carries Redding Road over the Merritt Parkway in town will be closed for five weeks for repairs.

The roadway will be closed between Cross Highway and Merwins Lane starting at 6 a.m. July 23. That closure will run until around 6 a.m. on Aug. 27.

The Connecticut Department of Transportation will be working on the rehabilitiation work.

While the agency works, there will be posted detours.

Drivers headed on north on Redding Road will be detoured to Merwins Lane and the Merwins Lane Bridge over the Merritt Parkways, connecting to Cross Highway and back to Redding Road. Motorists headed south will travel west on Cross Highway before hitting Merwins Lane and south back onto Redding Road.

Commuters headed west on Cross Highway from any point east of Redding Road — and from Congress Street — will be detoured south on Redding Road to Merwins Lane.

The project will include work for five miles in each direction of Route 15 and 11 structures — over and underpasses — in Fairfield and Westport. The project will include pavement, guardrail, drainage and historic concrete upgrades.