• Overnight works commence Monday 22 June 2026

BEAR Scotland, on behalf of Transport Scotland, is set to carry out overnight drainage improvement works on the M9 at Junction 4, Lathallan Interchange.

Due to the nature of the works, the M9 on-slips at Junction 4 will be closed in both directions each night between 7.30pm and 6am.

• The eastbound on-slip will be closed from the evening of Monday 22 June until the morning of Wednesday 1 July. A signed diversion will direct traffic to join the M9 westbound at Junction 4, exit at Junction 5, proceed around the roundabout, and rejoin the M9 eastbound.
• The westbound on-slip will be closed from the evening of Wednesday 1 July to the morning of Saturday 11 July. A signed diversion will direct traffic to join the M9 eastbound at Junction 4, exit at Junction 2, pass under the bridge, and rejoin the M9 westbound.

Consultation has taken place with relevant stakeholders in advance of these works to inform them of the traffic management arrangements and minimise any inconvenience.

Tommy Deans, BEAR Scotland’s South East Network Manager, said: “These drainage improvements on the M9 at Junction 4, Lathallan Interchange, will repair and upgrade defective motorway drainage assets.

“It is essential for safety that we close the carriageway slip roads during these works. We’ve scheduled them to be carried out during overnight hours to minimise any disruption.

“We thank road users in advance for their patience while our teams carry out these improvements.”

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

All works are weather dependent and subject to postponement or cancellation in the event of adverse conditions.