Drivers and pedestrians on one of the busiest routes in Lincoln will face at least four months of disruption and a lane closure next year.
Workers are set to carry out essential repairs to Pelham Bridge, which is more than 60 years old, from January 2021.
The project is expected to finish in early May, subject to approval by Lincolnshire County Council councillors.
During the works, traffic will be restricted to one lane in each direction.
The footpath on the bridge will be closed for part of the works. Pedestrians will be diverted to the High Street to cross the train tracks at the level crossing.
The bridge, which was originally opened by the Queen in 1958, will have its expansion joints replaced, have a new course of water-proofing installed, and be resurfaced.
A new barrier will also be installed between the footpath and the road on the bridge to keep pedestrians safe.
Lincolnshire County Council’s Highways and Transport Scrutiny Committee will discuss the works at a meeting on March 9, 2020
Karen Cassar, assistant director for highways, said: “There’s no doubt that Pelham Bridge is one of the busiest routes in Lincoln, and we appreciate that closing even just one lane will have a significant impact on traffic to and from the city centre.
“However, this work is essential to make sure that water and salt can’t get into the joints of the bridge and weaken the structure. The bridge hasn’t been re-waterproofed since it was built over 60 years ago.
“By the time work starts, drivers will be able to use the Lincoln Eastern Bypass, which will provide more options and should reduce some of the traffic having to cross Pelham Bridge.”