Staustufe Obernau

Staustufe Obernau is a lock and weir system on the Main River in Aschaffenburg with a fish passage and chamber for river navigation. The facility raises and lowers water levels to allow boats to pass safely between sections of the river.

Built between 1926 and 1929, this was the first working lock on the Main River. It came after an agreement that opened the river for boat traffic and commerce.

The facility shows how communities have long used the Main River for transportation and commerce. The lock represents a connection between industry and the waterway that shaped life in the region.

The site is easily visible from the riverbank and accessible by foot or bicycle. You can walk around the grounds to watch boats passing through the lock system.

The original turbines from the 1930s still operate and generate electricity from the flowing water. This decades-old equipment continues working today, showing how durable such installations can be.

Location: Aschaffenburg

GPS coordinates: 49.93370,9.12833

Latest update: December 14, 2025 17:40