A foundation shows strength: Portal West Riedberg Tunnel A9.

In order to complete the A9, the west portal of the Riedberg Tunnel must also be constructed. For this structure, the Volken Group supplies around 205 m3 of concrete and places it - via a truck-mounted concrete pump and its 36 m long placing booms. The single-sided formwork is a challenge: It has to absorb the entire concrete pressure, which is distributed on two sides in other structures with a double-sided formwork.

Benefits with the Volken Group

Open to innovation

Everyone plays a part in our company. For us, new ideas drive progress.

Traditional family business

We are an owner-managed family business in its second generation. We have short decision-making processes and prioritise communication on an equal footing.

Effective networks

We maintain strong relationships with partners, suppliers and customers.