High Orchard Bridge, which carries St Ann Way over the Gloucester & Sharpness Canal in Gloucester, will be closed for three weeks for resurfacing work during October.
The lifespan of the road surface on the bridge has expired meaning it requires resurfacing to safely allow vehicles and cyclists to cross over the canal.
The road will be closed from Saturday 5 October to Sunday 27 October.
A signposted diversion will be in place for road users.
The pavement is unaffected meaning pedestrians will still be able to cross the bridge, with the canal towpath beneath the bridge also remaining open throughout. Boats below the height of five metres will be able to continue using the navigation, though the bridge will be unable to be lifted for vessels above this height.
The work is being undertaken by the Canal & River Trust, who earlier this year completed a series of repairs to the bridge’s structure.
Neil Owen from Canal & River Trust said: “High Orchard Bridge is an important structure on the Gloucester & Sharpness Canal, lifting to allow tall-sided boats to navigate in and out of Gloucester.
“Unfortunately, the road surface on High Orchard Bridge has come to the end of its life and needs to be resurfaced. We will be removing the old surface, making repairs to road plates and abutments, and will then resurface the road over the bridge to complete the work.
“We apologise for any inconvenience this may cause while the road closure is in place.”