Concrete safety barrier edge protection at A1 Stillhorn-West service area

Summary

The tender concerns protecting the road shoulder at the A1 Stillhorn-West service area with a concrete safety barrier. The works include setting up and clearing the site, excavating a 15 m³ search trench up to 1.25 m deep, removing and disposing of the shoulder, grading the subgrade, and constructing a gravel base and an unbound surface layer. Safety works comprise 420 m of concrete barrier, 8 barrier connection or end units, 30 m of barrier transition, and installation of 20 reflective delineator posts. The work also includes services associated with explosive ordnance detection and clearance: five days each for an explosives specialist and a probe operator, plus a clearance report. The bid must include the priced bill of quantities and an X84 or D84 file for the main offer, the offer letter, a qualification self-declaration or applicable prequalification registration, and a declaration concerning Russia-related restrictions. No specific minimum turnover, reference-count or staff-experience thresholds are stated; supporting qualification documents may be requested separately. The bid must be prepared in German using the prescribed forms and submitted by the deadline.