Devon County Council has let a £1.29M contract, including VAT, for highway stabilisation works at the A377 Weirmarsh slip, a known failure point on this key Barnstaple–Exeter route. The scheme is expected to involve ground stabilisation and slope support to address ongoing embankment movement affecting the carriageway formation. Contractors and designers will need to manage works under live traffic on a constrained rural corridor, with careful control of groundwater and temporary works to maintain slope stability during construction.

Slope stabilisation case studies from Aarsleff Ground Engineering show driven steel sheet piles, a 10 m-deep contiguous piled wall and soil nails being tailored to constrained brownfield and heritage sites in Alnwick, Tynemouth and Northampton. Solutions include 57.6 m and 20 m sheet-piled retaining walls installed with silent press and Movax to protect listed masonry, a 300 mm-diameter contiguous wall with 3 m rock bolts, gabions and 25 m² carved shotcrete for a 120-year cliff design life, and 8 m R32 hollow-bar soil nails designed via 3D clash modelling around buried services.

Two derailments at Lewes in Sussex and Wickford in Essex, plus a landslip on another Sussex route and a separate track defect in Surrey, have simultaneously disrupted key commuter and regional rail corridors in south-east England. The incidents point to localised formation instability and asset degradation across multiple routes rather than a single point failure, with engineers now inspecting embankments, ballast condition and rail geometry. Operators face short-term speed restrictions and diversions while permanent repairs and geotechnical assessments are completed.