Hálslón
| Hálslón | |||||
|---|---|---|---|---|---|
 |
|||||
|
|||||
|
|||||
| Coordinates | 64 ° 55 ′ 0 ″ N , 15 ° 49 ′ 0 ″ W | ||||
| Data on the structure | |||||
| Height of the structure crown: | 193 m | ||||
| Data on the reservoir | |||||
| Water surface | 57 km² | ||||
| Storage space | 2 100 000 000 m³ | ||||
The Hálslón is the largest of three reservoirs of the Kárahnjúkar power plant in Iceland .
geography
The river Jökulsá á Brú and tributaries are dammed up to the Brúarjökull by three dams in the north over a length of 25 km . The lake is up to 2 km wide and 200 m deep and covers an area of 57 km². The storage volume of the reservoir is 2.1 km³. The water level can fluctuate between 575 m and 625 m above sea level.
The mountain Sandfell (678 m) lies in the lake. Only its tip juts out of the water as an island. Due to the damming, waterfalls such as Sauðárfoss and Töfrafoss have completely or temporarily gone under. When the maximum water level is reached, the artificial waterfall Hverfandi forms at the overflow .
Dams
The Kárahnjúkastífla is the main dam in the Jökulsá á Brú valley. It is 198 m high and 730 m long. This is a CFR dam , that is, a rock embankment dam with a concrete waterproofing on the water side. The dam has a volume of 8.5 million m³. The damming began on September 28, 2006.
To the east of it the Desjarárstífla was built with a height of 60 m and a width of 1000 m. The Austurleið runs over these two dams 
.
About 3 km southwest of the main dam, the Sauðárdalsstífla blocks off another valley. The dam is 25 m high and 1100 m wide.
See also
Individual evidence
- ↑ a b lvpower.is (PDF; 2.6 MB)