Staustufe Obernau

The Obernau lock facility includes a triple-drum weir, fish passage, boat lock, and a 300-meter-long chamber for river navigation.

Built between 1926 and 1929, the Obernau lock became the first operational lock on the Main River after the Main-Donau agreement of 1921.

The facility represents German engineering excellence with visible construction progress marks in untreated concrete areas highlighting historical building techniques.

The lock system maintains a water level difference of 4.01 meters between upstream and downstream, enabling safe passage for vessels along the Main River.

Two original Kaplan turbines from 1930 continue to generate 26 million kilowatt hours of hydroelectric power annually at the Obernau power station.

Location: Aschaffenburg

GPS coordinates: 49.93370,9.12833

Latest update: March 14, 2025 11:07