Tender: B741 Coal Glen Embankment Slip Remediation, Culvert Extension and Drainage Works

About

Contractor needed to repair the B741 Coal Glen highway embankment showing slope instability by excavating failed materials and replacing them with engineered fill regraded to a 1V:3H slope with counterfort drainage, repair the existing culvert via contractor-designed CIPP lining, extend the existing culvert by 10m using a contractor-designed precast concrete box culvert to accommodate the regraded slope, construct a contractor-designed transition unit with manhole access where the existing and extended culverts meet, construct a contractor-designed outfall headwall with scour protection using erosion control matting, widen highway verges to 2m on both sides with verge marker posts and post-and-mesh fencing, and install a highway surface water drainage system with direct outfalls to the Coal Glen watercourse at the northern inlet to the existing culvert and to the transition unit between the existing and extended culvert.