Grimmelshausen flood retention basin

Grimmelshausen flood retention basin
Location: Hildburghausen district Tributaries: Werra Larger places nearby: Grimmelshausen , Themar
Thuringia , Germany
Coordinates	50 ° 28 '36 "  N , 10 ° 38' 31"  E Coordinates: 50 ° 28 '36 "  N , 10 ° 38' 31"  E
Data on the structure
Construction time:	1984-1990
Height above valley floor:	9 m
Height above foundation level :	12 m
Height of the structure crown:	349.5  m
Building volume:	30th 000  m³
Crown length:	154 m
Crown width:	4 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 )	347.5  m
Water surface	85 ha
Storage space	1.85 million m³
Total storage space :	2.33 million m³
Catchment area	270 km²
Design flood :	140 m³ / s

The Grimmelshausen flood retention basin is located near Grimmelshausen and Themar in southern Thuringia . It was put into operation in 1991 and dams the Werra during floods.

The barrier structure is a homogeneous earth dam made of alluvial clay . The water side is covered with a pouring stone. The dam is built on alluvial clay and valley gravel. A clay carpet was placed in the storage space for sealing. In the middle of the dam there is a combined overflow structure with the flood relief , the bottom outlet and the dam beams for the permanent damming.

Only a small part of the pool (110,000 m³) is permanently dammed. Most of the space is taken up by the usual flood protection room with 1.74 million m³, which is only dammed during floods .

See also

• List of dams in Germany
• List of bodies of water in Thuringia

literature

• Dams in Thuringia, Thuringian dam administration, author college, 1993