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Measurement history
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Station details
TypePrivat, pålagt
OwnerÅ ENERGI VANNKRAFT AS
Elevation above sea level19 m
River systemArendalsvassdraget
Catchment area3946.2 km²
RegulationRegulert m/magasinregulering og overføringer
Coordinates58.4107°N, 8.6701°E
Active since28 September 1899
Latest data (NVE)26 October 2026
Historical records
Highest discharge507.62 m³/s30 November 2022
Aquatic environment
Water bodyInntaksdam Rygene
Ecological statusNot applicable
Chemical statusNot classified
🎣 Fishing
Fish speciesAtlantic salmon
☁️ Yr forecast
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Did you know …
- The station is located on Arendalsvassdraget.
- The station's catchment covers 3,946 km² and reaches 1,521 metres above sea level at its highest point.
- The catchment is 68% forest, which dampens runoff and gives a steadier discharge than in open mountain rivers.
- The river system is regulated for hydropower with 33 reservoirs. It was first regulated in 1904.
- The station is on a documented anadromous stretch used by salmon. Atlantic salmon (Salmo salar) is listed as Near Threatened (NT) on the Norwegian Red List (2021). View in Lakseregisteret →
- Near the station is the old settlement site Plassen.
What does Vannkart.no show?
Vannkart.no displays measurements from NVE’s national gauging network. Data comes from NVE HydAPI with historical percentiles (p25/p50/p75), showing how levels compare with the seasonal norm.
How to use the measurements
These data can help plan fishing, paddling and outdoor activities. When flooding is possible, always follow official warnings from varsom.no. Measurements may be delayed and should never be the sole basis for critical decisions.
Data sources: Hydrology: NVE HydAPI. Weather: Yr / met.no. Data may be delayed. Vannkart.no is not affiliated with NVE or the Norwegian Meteorological Institute.