Gollentaler Grund flood retention basin
| Gollentaler Grund flood retention basin | |||||||
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| Coordinates | 51 ° 31 '57 " N , 8 ° 43' 46" E | ||||||
| Data on the structure | |||||||
| Construction time: | 1993-1997 | ||||||
| Height above foundation level : | 13.5 m | ||||||
| Height of the structure crown: | 302.50 m above sea level NN | ||||||
| Crown length: | 160 m | ||||||
| Crown width: | 5 m | ||||||
| Slope slope on the air side : | 1: 2.5 | ||||||
| Slope slope on the water side : | 1: 3 | ||||||
| Data on the reservoir | |||||||
| Altitude (at congestion destination ) | 300.81 m above sea level NN | ||||||
| Water surface | 33 ha | ||||||
| Storage space | 1.26 million m³ | ||||||
| Total storage space : | 1.60 million m³ | ||||||
| Catchment area | 63.1 km² | ||||||
| Design flood : | 78 m³ / s | ||||||
The Gollentaler Grund flood retention basin is a flood retention basin near Bad Wünnenberg in the Paderborn district in North Rhine-Westphalia , which is operated by the Obere Lippe water association. The basin is a "green basin". The Wiele in the Gollentaler Grund is only dammed up during floods. It flows over the Afte and Alme into the Lippe .
The construction material of the dam is rock fill (a so-called skirmish lime), while an inclined clay core serves as a seal. With the bottom outlet , 7.7 m³ / s can be discharged in the event of a full build-up.
photos
Inlet structure of the bottom outlet
Flood drainage structure
Air side of the dam
