The works will see Transport Scotland's operating company BEAR Scotland resurface a combined 4,287 metres of carriageway, creating smoother and safer journeys for motorists.
To ensure the safety of roadworkers and the public during these works, the following overnight closures will be in place between 19:30 and 06:00 each night:
• 7-11 November: The southbound carriageway of the A1 will be closed north of Thistly Cross Roundabout. Southbound traffic will be diverted off the A1 at Abbotsview via the A199 to re-join the A1 at Thistly Cross Roundabout.
• 14-18 November: The northbound carriageway of the A1 will be closed between Oaktree and Gladsmuir. A diversion will be signposted from Oaktree Junction via the A199, re-joining the A1 at Gladsmuir Junction.
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• 21-24 November: The southbound carriageway of the A1 will be closed at Abbotsview. Southbound traffic will be directed to leave the A1 at Abbotsview Junction southbound off-slip and immediately re-join via the southbound on-slip.
• 28 November to 2 December & 5-9 December: The southbound carriageway of the A1 will be closed at Dolphingstone. A diversion will be signposted from Dolphingstone Junction via the A199, travelling East through Tranent and re-joining the A1 southbound at Gladsmuir Junction.
• 29 November to 2 December: The northbound carriageway of the A1 will be closed at Abbotsview. Northbound traffic will be directed to leave the A1 at Abbotsview Junction northbound off-slip and immediately re-join via the northbound on-slip.
Emergency services will be given access through the works at all times.
Relevant stakeholders have been consulted in advance to make them aware of the plans.
Tommy Deans, BEAR Scotland's South East Network Manager, said: "These resurfacing improvements on the A1 in East Lothian represent a significant investment by Transport Scotland to ensure smoother and safer journeys for motorists.
"We're fortunate that there are convenient diversion routes along this stretch of the trunk road, so we don't expect these works to cause significant delays. If you do need to travel on these nights, our advice is to allow a couple of extra minutes for your journey.
"We're grateful to road users and local communities for their patience and understanding while we complete these improvements."
