motorists heading west out of Doncaster town centre have been warned to expect disruption for several weekends for vital bridge strengthening works.
Heavy cranes are being brought in to lift sturdy beams into place on Balby Bridge, which for several years has been reduced to narrow lanes after structural problems were discovered.
As part of ongoing works to repair Balby New Bridge, the installation of edge beams will see a series of weekend road closures starting on Saturday, July 2.
The outbound lane of Balby Road will be closed from 10pm on Saturday until 6am on Monday for at least five - and possibly seven - consecutive weekends.
Traffic management measures and diversions will be in place around the area.
The works started last September and concrete repairs below the bridge are finished.
Preparation works have been taking place for the new beams and two 500 ton mobile cranes will be set up on the carriageway.
Working in tandem they will lift out the existing weak beams and fit new beams to strengthen the bridge.
When completed, the works will mean the bus lane can reopen to increase traffic capacity on Balby Road.
With ongoing gas works taking place seven days a week along the A630 Balby Road, motorists are advised to use alternative routes into Doncaster such as junctions 37 and 38 on the A1(M). Signs on the approaches to the A630 will advise motorists of diversions.
Peter Dale, the council’s director of regeneration, said: “We apologise for the disruption caused by these essential works but they have to take place now to coincide with arrangements made with Network Rail.
“We ask people to bear with us until the new bridge is in place and the much needed road improvements are completed.
“We urge motorists to use alternative routes into Doncaster particularly at weekends.”