Two nights of works to carry out bridge joint repairs will start on Tuesday 7 September.
The total maintenance project is expected to last for two evenings, 8pm to 6am, subject to suitable weather.
Cllr Richard Davies, Executive Member for highways, said: "Since carrying out repairs to Brayford Way Bridge last July, we've found that one of the joints we replaced isn't quite up to the standards we expect.
"So, as part of our agreement with the original contractor, they will be carrying out some repairs early next month to ensure a longer life for the bridge and less disruption in the future.
"We've planned these works to be carried out overnight from 8pm, when there are fewer people on the road in Lincoln, and will also be maintaining access as in and out for residents of Campus Way and for the emergency services as often as we safely can.
"I want to thank everyone in Lincoln for their patience once again while we carry out these essential repairs."
The diversion route for northbound traffic at the University roundabout will be via Ropewalk / East-West Link Road / Cross Street / Portland Street / Pelham Bridge / Wigford Way / Newland / Carholme junction.
The diversion route for southbound traffic at the Carholme junction will be via Newland/ Wigford Way / Pelham Bridge / Kesteven Street / East-West Link Road / Ropewalk / University Roundabout.
For up-to-date information about this and other roadworks, visit www.lincolnshire.gov.uk/roadworks.