A Â£270,000 scheme to maintain and improve Fort St George Bridge in Cambridge is due to start on Monday, 5 January.
The works include replacing the current protective paint system which has come to the end of its 20 year design life.
Some of the steelwork which has become corroded will also need replacing with new welded sections.
During the works the bridge will be closed and covered in scaffolding as well as plastic sheets so that grit blasting and painting can be carried out.
The works will take around 16 weeks to complete and pedestrians and cyclists are asked to use Victoria Avenue and Cutter Ferry bridges.