Northpoint was commissioned by Redcar & Cleveland Borough Council to undertake a Slope Stability Assessment along a section of the A174 highway at Loftus. The A174 is a key link road between Teesside and North Yorkshire, and forms the main coastal route to Whitby.
Historically, the slope landform at Loftus Bank has been unstable. Major slope movement and failure has been recorded from as early as 1927. The last major slope failures were recorded between 1999 and 2004. Since these failures, large scale remedial works have been undertaken to regrade and reengineer the slope, and protect the A174 highway immediately beyond the crest.
In 2019, Northpoint’s Geotechnical Engineers revisited the slope where an additional slippage occurred. From Northpoint’s assessment, immediate actions were required to protect the highway and residential properties that lie beyond the slope failure.
The Slope Stability Assessment concluded that water inundation at the crest of the slope was responsible for the localised slip. As part of our recommendations, Northpoint suggested the placement of an adequate kerb-line and highway drainage between the carriageway and slope crest. Northpoint continue to assist the local council with regrading of the slope coupled with a review of a planting solution to provided added long-term support.