ARGE Kriegenbrunn lock

With state-of-the-art technology, sustainable solutions and digital planning, we create a lock system that secures shipping traffic in the long term. Engineering at the highest level - for efficient and resource-saving inland navigation. The construction of the new replacement structure is being implemented as a consortium between Ed. Züblin AG, Züblin Spezialtiefbau GmbH and Bauer Spezialtiefbau GmbH.

Civil engineering for the future: ZÜBLIN builds the new Kriegenbrunn lock

The Kriegenbrunn lock on the Main-Danube Canal has been a central link for inland shipping between the North Sea and the Black Sea for over five decades. However, the existing facility, built between 1966 and 1970, is now showing massive structural damage that can no longer be sustainably repaired by renovation alone. This is why the Aschaffenburg Waterways Construction Authority has planned a new replacement - a project that sets new standards in terms of its size and complexity: By 2032, a state-of-the-art facility will be built right next to the existing lock that will secure shipping traffic in the long term while also meeting ecological standards. The new lock will comprise a 190-metre-long chamber, three large reservoirs for efficient water use, as well as efficient outer harbors and transport connections. In addition, the canal will be relocated by around 44 meters in order to optimally integrate the new infrastructure.

Top technical performance in civil engineering and special foundation engineering

The dimensions of the project are impressive: around 900 bored piles with depths of up to 37 meters are being installed - using Germany's largest drilling rig, among other things. The excavation pit reaches a depth of around 30 meters and requires a technically sophisticated system of shoring, bracing and dewatering. At the same time, the solid components of the lock chamber and sparging basin are being built in complex geometry. This is where ZÜBLIN brings all its expertise in civil engineering to bear.

Construction during ongoing operations - precision and logistics in harmony

A particular challenge is the implementation during ongoing shipping operations. While the new lock is being built, most of the existing facility remains in operation. This requires sophisticated planning, ingenious logistics and the highest safety standards.

Focus on sustainability

With the energy-saving basin system, the new lock will save up to 60% of the lock water - a decisive contribution to conserving resources. The system will also be designed to be more robust and require less maintenance in order to reduce operating costs and increase availability in the long term.

A project of national importance

With a volume of around 532 million euros, the replacement construction of the Kriegenbrunn lock is one of the largest infrastructure projects in the German waterway network. For ZÜBLIN, this means engineering at the highest level, combined with innovative strength and sustainable thinking. Together with our partners, we are shaping the future of inland navigation - efficient, resource-saving and technically pioneering.