Repairs to Hewick Bridge on the B6265 between Ripon Racecourse and the Newby Hall turn-off started on Monday, 22 January.
The work is expected to take eight weeks. During that time, the bridge will be closed to vehicles and pedestrians.
County Councillor Don Mackenzie, Executive Member for Highways, said: “This work is essential to maintain and preservice this Grade II listed structure. The parapets on both the upstream and downstream sides of the bridge have eroded stones. We need to replace these eroded stones, 41 in total.”
The work involves carefully dismantling the parapets. Any stones that can be reused will be set aside to be placed back in their original positions. The parapets will be rebuilt using new stones where necessary. All mortar will be raked out and repointed and road markings reinstated. The contractor is PBS Construction.
Signed diversions are in place. Heavy goods and commercial vehicles are being directed via the A61 to junction 50 on the A1, to junction 49 and via the A168 back to the B6265. Cars and motorcycles are being diverted via Sharow.
Cllr Mackenzie added: “We ask people to follow the diversion signs to avoid a build-up of vehicles turning around at Hewick Bridge.”
County Councillor Robert Windass, Member for Boroughbridge division, said: “I appreciate this is going to be inconvenient for a lot of motorists, but this is essential work to be done on the parapet and our contractor will ensure the work is completed as quickly as possible.”
Update: 12 February
The project remains on schedule.