Shell construction of the tunnel operations building with extinguishing water basin and supply road in the large-scale Riederwald tunnel project.

Creation of implementation planning 1 Psch

- Ordnance exploration, area sounding 2 700 m 2 ,

- Concrete 2,000 m 3 ,

- Formwork 3 100 m 2 ,

- reinforcement 125 000 kg,

- Excavation of earth 2 500 m 3 ,

- Insert sheet pile shoring and dismantle 500 m 2 ,

- dewatering 65 days,

- Temporary LSW 10 m high, set up, hold, dismantle 53 m.