A98 Bürgerwald and Heidenäcker tunnels – construction and operational technical retrofitting

Summary

The tender concerns construction and operational technical retrofitting of the A98 Bürgerwald and Heidenäcker tunnels. The deadline for submitting tenders is 12 November 2026. Performance is scheduled to start no later than 1 April 2027; the construction office must be completed by 1 October 2027, construction phase 1 by 31 January 2030, construction phase 2 by 28 February 2031, and the entire works by 30 April 2031. The bidder must submit a construction schedule, comply with BIM and construction measurement requirements, and account for 5% performance security, 3% security for defects claims, delay penalties and the material price-adjustment clause. The precise qualification and exclusion requirements must be checked in the tender documents.