Wendefurth Dam

The Wendefurth Dam near Wendefurth in the Harz is one of the dams downstream of the Rappbode Dam, that provides flood protection as well as impounding the River Bode to provide the lower reservoir for the Wendefurth Power Station. In addition it is a bathing lake and also supports fish farming.

The actual dam is a 43.5 m high gravity dam made of 16 segments that is 30 m above the valley floor and 3 metres wide at the crest. The individual segments of the dam are sealed on the upstream side with copper sheets set into the concrete. In addition the joints are sealed with tar and hemp. The flexure of the individual segments under water pressure is constantly monitored. By means of pendulums suspended on the dam wall the degree of flex can be measures. The movement of segments relative to one another is also under constant observation. The wall has several galleries for inspection purposes. Two bottom outlets have been installed at the base. The huge annular piston valves can deliver up to 75 m3/s of water. It is currently being investigated whether the water outflow can be used for energy purposes.

Wikipedia