A90 Glencarse Overbridge | Essential Repairs

Work on an £840,000 project to fully repair the accident damaged A90 Glencarse Overbridge between Perth and Dundee will begin on Thursday 10th October.

Amey, on behalf of Transport Scotland, is carrying out essential repairs to reinstate the bridge's load-carrying capacity and allow the local road on the bridge to fully reopen to traffic.

To ensure the safety of roadworkers and motorists the essential repair works will be carried out under a contraflow system, with work expected to take up to 10 weeks.

Repair Work

The bridge suffered significant structural damage when struck by a vehicle in March 2023, requiring an extensive programme of complex repairs to bring the bridge back into safe working order for road users.

Although it was possible to undertake temporary repairs while removing loose and damaged concrete, and subsequently fully reopen the A90 in November 2023, the primary deck element remained buckled.

For safety reasons single lane traffic lights remained in place on the bridge flyover leading to St Madoes. Following an extensive procurement process, Amey has now secured the specialist resources required to carry out repairs that will allow these lights to be removed.

The work will include installation of temporary propping to allow cutting out and replacement of the damaged section of steel beam, concrete repairs to the surrounding area of the bridge deck, and replacement of the damaged bearing which supports the beam.

Amey will also take the opportunity to carry out additional maintenance work at this location while the traffic management is in place, including bearing replacement on the south support and repainting work, thus avoiding the need to close the A90 again for such maintenance in the near future.

Traffic Management

From 7.30pm on Thursday 10th October there will be a combination of lane 2 closures in both directions and a 50mph speed limit in different phases to set up the contraflow traffic management.

A full contraflow system is scheduled to be in place from 7.30pm on Saturday 12th October, with a single lane in operation in each direction on the northbound carriageway between Kinfauns and Glendoick.

The A90 southbound off slip to St Madoes will be closed during the work. Southbound traffic will be diverted to the next A90 turnoff at Kinfauns where they will be able to return northbound on the A90 and exit at the northbound off slip.

Please note, all schemes are weather dependent and may be cancelled or rescheduled if weather conditions are not favourable.