The Old Bridge in Huntingdon will be closed for two weeks for repairs.
The Old Bridge, which links Huntingdon and Godmanchester, dates back to medieval times.
The repairs in September follow a crash on the bridge in December 2023, which saw one person cut free from their car.
The bridge will be closed between Monday 2 September 2024 and Sunday 15 September 2024, but the pedestrian bridge will remain open.