Edersee

The Edersee, also known as the Ederstausee, is an 11.8 km2 reservoir in Waldeck-Frankenberg, Hesse, Germany with 199.3 million m3 of storage space. It has the 2nd largest area, and the 3rd largest volume, of all reservoirs in Germany. It is located on the Fulda Tributary of Eder behind the 48 m-high Edersee Dam near the town of Waldeck in the Waldeck-Frankenberg district of North Hesse.

The Eder Dam is owned by the Federal Waterways and Shipping Administration, with the Hann. Münden Waterways and Shipping Office being responsible. The primary purpose of the dam is to provide water for the federal waterways Oberweser and Mittellandkanal. It also serves to protect downstream residents from small and medium floods, to generate electrical energy and for recreation.

Source: Wikipedia