Core piece of Pforzheim’s western bypass

SÜLZLE Stahlpartner Pforzheim, SÜLZLE Armierungstechnik and SOTRALENTZ CONSTRUCTION are moving the Arlinger Tunnel forward block by block. The ARGE Arlinger Tunnel consortium, consisting of the companies ÖSTU-STETTIN, JÄGER BAU, REIF and GRÖTZ, is responsible for the completion of the Pforzheim construction project on behalf of the Karlsruhe Regional Council.

By the end of 2023, traffic should be flowing between the A8 and the Enz valley. This requires concreting from the invert to the vault in the 1,350-metre-long tube. The tunnel vault will be reinforced with steel and then concreted using special tunnel formwork carriages. The laying work is being carried out by SÜLZLE Armierungstechnik. About 2,000 tons of reinforcing steel from Pforzheim and 2,000 tons of list mats from SOTRALENTZ CONSTRUCTION are being used for the entire tunnel construction. From the north, the invert has already been concreted. Continuing to the south, the formwork carriage is working its way forward. The control centre with ventilation, electrical and connecting tunnels as well as an exhaust shaft is being built in the middle of the tunnel. A comprehensive construction project that benefits from the strength of the SÜLZLE Group. Even complex construction projects such as the Arlinger tunnel construction can be managed hand in hand.