Gedling Road Project

Project Challenges and Background

The A77 in the Southwest of Scotland is one of the most important roads in Scotland and vital to the economy. Local and national, but for long stretches the A77 can seem like a back road due to twists and single-carriageway alignment. Restricted access, ground conditions and uncertainties led to this being a very challenging project with a limited window of opportunity to complete the project. Campaigners have long fought for significant investment on a route that acts as a major artery between the island of Ireland and Scotland. With nearby ferry terminals, Cairn Ryan and Stranraer carrying daily freight and car transport to Ireland and back, a landslip at Carlock Hill, the second to hit the area in recent times caused major problems.

The road was closed in November 2020 due to landslips at Cairnryan, just north of the ferry terminal at Marchburn north of the South Ayrshire / Dumfries & Galloway Boundary and at Carlock Hill. The project will entail the removal of half of the carriageway and excavation of the steep embankment and existing wall beneath it. One lane of traffic on the A77 will be kept open by pinning the exposed face to allow a reinforced earth wall to be constructed beneath the trunk road. Beneath the reinforced earth wall, Ischebeck Titan anchors will be installed and finally, the carriageway will be rebuilt, and a new safety barrier and environmental noise barrier will be constructed.