Construction and operational technical upgrade for Bürgerwaldtunnel and Heidenäckertunnel on the A98

Construction and operational technical upgrade of the Bürgerwaldtunnel and Heidenäckertunnel on the A98: mining excavation for rescue tunnels (18,200 m³), shotcrete (4,000 m³), reinforced concrete (1,300 m³), reinforcing steel (250 t), nailing (3,200 m), anchors (13,000 m); additionally operational technical equipment including reinforced concrete (60 m³), reinforcing steel (5 t), cable laying (220,000 m), cable trench (1,700 m³), cable protection pipes (5,000 m).

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