Contractors will continue to treat both northbound and southbound carriageways of the A46 at Hartley Bends near Bath this week, with high friction surfacing being added to increase the skid resistance of the existing surface.
The improvement work involves overnight closures between 8pm and 6am in both directions between Bath and the Cold Ashton roundabout.
The nightly closures, which excluded last weekend, started on Monday 9th May and will continue until Friday 20th May.
The diversion routes in place are via the A420, A350 and A4 southbound and A4, A350 and A420 northbound.
Paul Barker, south west operations manager for Highways England, said: “Safety is the top priority for Highways England and as part of our routine annual surveys the Hartley Bends section of the A46 was identified and programmed into our schedule.
“We see this as essential work to increase the skid resistance of the existing surface, which is coming to the end of its serviceable life.
“We are implementing the nightly closures to ensure the safety of both the travelling public and our workforce, and to get the work done as quickly and safely as possible.
“We understand our work may cause some inconvenience and disruption but we will make every effort to ensure that the impact of the work is kept to a minimum.”
Diversion routes will be clearly signposted during the weeknight closures, with access maintained for residents and local businesses along the route.