The shaft lock is the "old" lock. It was built between 1911 and 1914. With a length of 85 meters and a width of 10 meters, this lock is not sufficient for large motor cargo ships. That is why the "Weserschleuse Minden" was built in 2017 as a supplement. So there are two locks.
A spectacular building. When crossing the lock / bridge you have the feeling that you can almost touch the gates that hold the immense water pressure, they are so close to the way.