Heyda dam

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Heyda dam
View from the east end of the dam towards Heyda behind the northern arm of the lake and the hotel at the west end of the dam
View from the east end of the dam towards Heyda behind the northern arm of the lake and the hotel at the west end of the dam
Location: Ilm district
Tributaries: Wipfra
Larger places nearby: Heyda , Bücheloh , Ilmenau
Heyda Dam (Thuringia)
Heyda dam
Coordinates 50 ° 44 '0 "  N , 10 ° 57' 27"  E Coordinates: 50 ° 44 '0 "  N , 10 ° 57' 27"  E
Data on the structure
Construction time: 1980-1988
Height above valley floor: 15.80 m
Height above foundation level : 18.80 m
Height of the structure crown: 418.50 m
Building volume: 110,000 m³
Crown length: 239 m
Crown width: 3 m
Slope slope on the air side : 1: 2.5
Slope slope on the water side : 1: 3.5
Data on the reservoir
Altitude (at congestion destination ) 416.60 m
Water surface 95 hadep1
Storage space 5.00 million m³
Total storage space : 5.32 million m³
Catchment area 22 km²
Design flood : 62 m³ / s

The Heyda dam dams the Wipfra near Ilmenau in southern Thuringia . The dam was built from 1980 to 1988 and commissioned in 1989 for irrigation purposes . Further uses are: low water increase , industrial water supply , flood protection and fish farming .

dam

The dam was built as a homogeneous earth dam made of clay and silt on a red sandstone underground. The dam therefore does not need a special seal. It is only connected to the subsoil with a sheet pile wall and a sealing curtain. The water side is protected by a pouring stone and concrete slabs. In addition to the main dam, there is a secondary dam that is up to 6 m high and 200 m long.

Reservoir

Leisure information

There is a scenic circular hiking trail around the dam. There is a seminar and holiday hotel at the dam. Fishing is also possible. A nature reserve is located at the dam of the reservoir .

ecology

In the spring of 2013, thousands of silver carp living in the dam died within a short time . They were still used in GDR times to later make medical products from them. Why the approximately 25-year-old animals died was initially unclear, especially since all other fish species were not affected. An infestation by viruses or bacteria could be excluded by laboratory tests. Later it turned out that the fish died of old age, as the fish, which actually came from Asia, were not able to reproduce due to the cold water.

See also

Individual evidence

  1. ^ Report at Spiegel Online

literature

  • Helmut Deubner, among others: Dams in Thuringia. Published by the Thuringian dam administration. Progress publishing house, Erfurt 1993.

Web links

Commons : Heyda Dam  - collection of images, videos and audio files