Switzerland · Aare → Rhine
Grimselsee
Hydropower · Alpine storage
Live reservoir intelligenceSwitzerland
46.5660, 8.3060Current conditions
Loading official and satellite reservoir feeds…Inflow · Operating state · Outflow
Inflow
Operating state
Outflow
Capacity
Global Dam Watch · reviewed join
3: FairDam and catchment reference
Dam / barrierSpitallamm
Completed1932
Dam height114 m
Dam length258 m
Reference capacity101 mil. m³
Reference surface2.97 km²
Catchment100 km²
Elevation1,831 m a.s.l.
Long-term mean flow4.81 m³/s
Reference main useHydroelectricity
The mean flow is a WaterGAP/HydroSHEDS 1971-2000 model reference from Global Dam Watch, not today's inflow or release. Blank fields remain unfilled where no reviewed dam match exists.
Sources
Field-level provenanceGlobal Dam Watch - barrier 3804
Dam dimensions, reservoir area and capacity, catchment, elevation, completion year and long-term mean river discharge.
Quality fair. Discharge is the modelled 1971-2000 mean, not a current operator reading. Field definitions: https://jeodpp.jrc.ec.europa.eu/ftp/public/JRC-OpenData/GDW/GDW_TechDoc_v1_delta.pdfGlobal Water Watch
Satellite-observed surface-water area for Global Water Watch reservoir 76163.
Surface area is not stored volume, fill percentage, gate state or dam safety.