Iberg dam

Iberg dam
Location:	Nordhausen district , Thuringia , Germany
Tributaries:	Krebsbach
Drain:	Krebsbach → Thyra
Larger places nearby:	Herrmannsacker , Rodishain , Stempeda
	Thuringia , Germany
Coordinates	51 ° 32 '6 " N , 10 ° 53' 54" E Coordinates: 51 ° 32 '6 " N , 10 ° 53' 54" E
	Data on the structure
Construction time:	1949-1952
Height above valley floor:	15 m
Height above foundation level :	16.9 m
Height of the structure crown:	256.55 m
Building volume:	92 400 m³
Crown length:	195 m
Crown width:	4 m
Slope slope on the air side :	1: 1.75, 1: 2.5, 1: 4
Slope slope on the water side :	1: 4, 1: 3
	Data on the reservoir
Altitude (at congestion destination )	247 m
Water surface	3 ha
Storage space	1.21 million m³
Total storage space :	1.34 million m³
Catchment area	14 km²
Design flood :	8.1 m³ / s

The Iberg flood retention basin was built between 1949 and 1952 near Nordhausen in Thuringia , Nordhausen district , for flood protection . It is a permanently partially dammed retention basin . The Krebsbach is dammed . The reservoir is not far from the Neustadt dam , in which the Krebsbach is also dammed.

The barrier structure is an earth dam with an inclined inner seal. In 1955 the subsoil was subsequently sealed with a sealing curtain from the water-side berm . In the deeper subsurface there are greywacke and glossy slate , which are covered by rubble, layers of plaster and clay. The flood relief and the extraction facilities are located on the left side of the dam.