canicada dam water discharge due to excessive rain in recent days

water bridge river waterway waterfall reservoir snow reflection winter ice transport infrastructure wall freezing canal fountain sea rapid 2023 barrage close-up concrete dam discharge discharger downstream drainage electricity energy excessive rain flood period floodgate floodgates flow flowing force heaver hydro hydroelectric hydropower industry iron north portugal november portuguese power supply resource resources right bank spillway stream unloader duct fall canicada due recent days barragem located minho region 2023 portugal