• Overnight carriageway, slip road and lane closures from 2 February 2026

A series of overnight carriageway, slip road and lane closures is planned at M90 Junction 2, Masterton, to allow Transport Scotland’s operating company BEAR Scotland to carry out refurbishment works on the bridge carrying the motorway at this location.

The project to refurbish Masterton Viaduct has been under way since November 2025. Up until now this has involved concrete repairs underneath the bridge with no impact on motorway traffic, however the next phase of work on the edges of the bridge will require traffic restrictions over a period of approximately 15 weeks.

The southbound carriageway of the M90 will be closed at Junction 2 between 20:00 and 06:00 on the night of Monday 2 February. Traffic will be diverted from M90 Junction 2 to M90 Junction 1C via the A823(M), adding an estimated two miles and six minutes to affected journeys.

This will be followed by a series of overnight closures of the M90 Junction 1C northbound on-slip and the M90 Junction 2 on-slip and off-slip:

• Closures of the M90 Junction 1C northbound on-slip are planned between 20:00 and 06:00 on the nights of 9 to 10 February, 16 to 18 February and 4 to 5 March. A diversion route will be signposted via Admiralty Road, the A985, the B980 Kings Road and the A823(M) to join the M90 northbound at Junction 2, adding approximately six minutes and two miles onto affected journeys.
• Closures of the M90 Junction 2 southbound on-slip are planned between 20:00 and 06:00 on the nights of 2 to 6 February, 9 to 10 February, 16 to 18 February and 2 to 6 March. Traffic will be diverted via the M90 northbound to turn at Junction 3 and return southbound, adding an estimated eight minutes and 6 miles onto affected journeys.
• Closures of the slip road from the M90 Junction 2 southbound off-slip are planned between 20:00 and 06:00 on the nights of 23 to 25 February and 2 to 6 March. A diversion will be signposted via the M90 southbound to turn at Junction 1C and return northbound to exit via the Junction 2 northbound off-slip. This will add approximately one minute and one mile to affected journeys.

Further overnight closures will be publicised as dates are confirmed.

Various overnight lane closures will also be in place, and the hard shoulders in both directions will be closed at all times. The slip road from the A823(M) onto the M90 southbound will have an amended layout.

A temporary reduced speed limit of 40mph will be in force through the works for the duration of this phase. This is for the safety of road users and the workforce and will be monitored by average speed cameras managed by Police Scotland.

David Bishop, BEAR Scotland’s South East Unit Bridges Manager, said: “This programme of refurbishment is key to ensuring the structural integrity of Masterton Viaduct. The upgrading of the parapet to modern standards will improve safety for road users and extend its service life.

“The works have been planned to minimise disruption to road users as far as possible. Some carriageway and slip road closures are unavoidable, however these will be limited to overnight hours.

“We thank road users in advance for their patience and understanding and ask them to fully comply with temporary speed limits to ensure our workers can go home safely to their families each day.”

Live traffic information is available from the Traffic Scotland website www.traffic.gov.scot and on X at @trafficscotland.

All works are dependent on the weather and the existing condition of the structure, which can’t be fully understood until works commence and intrusive investigations are carried out. As such, the programme of works is subject to postponement, cancellation or rearrangement of dates in the event of adverse weather conditions or unforeseen circumstances.