UPDATE 01 September 2025: Due to heavy rain on Friday night, resurfacing works on the M8 Junction 4A off-slip require one additional night of works tonight. Works will now complete at 6am on 2 September. The same closure will remain in place. See details below in red.
UPDATE 20 August 2025: To accommodate these works, the M8 Junction 4A eastbound off-slip will also be closed on the nights of Tuesday 26 and Wednesday 27 August. M8 eastbound traffic wishing to exit at Junction 4A will be diverted onwards to Junction 4 eastbound off-slip, then the A801 and A706, following the existing westbound diversion signs back to Junction 4A to continue their journey.
The westbound carriageway of the M8 from Junction 3A to Junction 4A will be closed for resurfacing works between 20:30 and 06:00 on the nights of 26, 27, 28, 29 August, and 1 September.
The project will be carried out by Transport Scotland’s operating company, BEAR Scotland, and will involve renewing 0.5 kilometres of the M8 Junction 4A off-slip road surface to improve safety and provide smoother journeys for motorists.
A signed diversion will be in place for westbound traffic on the M8 from Junction 3A. Traffic will be directed to exit via the M8 Junction 3A off-slip, head south-west to the A7066, continue onto the A706, turn right onto the B7066 and follow signs for the M8 Glasgow before rejoining the motorway via the Junction 4A on-slip. This diversion is expected to add approximately 11 minutes and 6.3 miles to journey times.
Tommy Deans, BEAR Scotland’s South-East Network Manager, said “Closing the M8 westbound carriageway is essential to ensure the safety of both road users and our workforce during these resurfacing works.
“We’ve planned the works overnight to minimise disruption as much as possible, however we understand this may still cause inconvenience for some road users. We thank the public in advance for their patience and understanding.
“If you need to use this route during the works, our advice is to plan ahead and allow extra time for the diversion.”
Access for emergency vehicles will be maintained at all times.
Consultation has been carried out with emergency services and relevant stakeholders to share information about the project in advance.
Real time journey information is available from Traffic Scotland at www.traffic.gov.scot, or on X at @trafficscotland.
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