Talsperre Scheibe-Alsbach, Earth dam in Scheibe-Alsbach, Thuringia, Germany

The Scheibe-Alsbach Dam is an earth dam built from shale-clay material on a rock foundation, impounding the Schwarza river. Its water side is covered with a two-metre-thick stone riprap, while the air side is grassed. The dam was constructed between May 1938 and November 1941, and impoundment began in August 1942.

The dam was built between May 1938 and November 1941, and impounding began in August 1942. Because of the war, the reservoir was initially filled only to two-thirds of its height. It was taken into service in 1944 and has also supplied drinking water since 1986.

The reservoir is operated by the Thüringer Fernwasserversorgung, the state's long-distance water utility, which has drawn drinking water from it since 1986. Its other task is raising low-water levels in the Schwarza, the river it impounds. The dam lies at 663 metres in the Thuringian Forest near Neuhaus am Rennweg.

The dam lies near Scheibe-Alsbach, south of Neuhaus am Rennweg in southern Thuringia, at about 663 m elevation. The shoreline is a drinking-water protection zone and must not be entered, so the reservoir and dam are viewed from outside the protected area. The overflow, flood relief, drinking-water intake and bottom outlet are all on the right side of the valley.

The structure has different slope angles on its air and water sides, which serves its stability. The water-facing side is reinforced with thick stone to withstand water pressure.