Switzerland · Ticino → Po
Lago Ritom
Hydropower storage
Live reservoir intelligenceSwitzerland
46.5400, 8.6890Current conditions
Loading official and satellite reservoir feeds…Inflow · Operating state · Outflow
Inflow
Operating state
Outflow
Capacity
Global Dam Watch · reviewed join
4: PoorDam and catchment reference
Dam / barrierPiora
Completed1920
Dam height27 m
Dam length309 m
Reference capacity53.9 mil. m³
Reference surface0.99 km²
Catchment27 km²
Elevation1,826 m a.s.l.
Long-term mean flow1.2 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 5817
Dam dimensions, reservoir area and capacity, catchment, elevation, completion year and long-term mean river discharge.
Quality poor. 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 70088.
Surface area is not stored volume, fill percentage, gate state or dam safety.