| Answer | Crossword Clue |
|---|---|
| spillway | A passage for surplus water from a dam |
| spillways | A passage for surplus water from a dam |
| wasteweir | a sluiceway or passage for superfluous water in a reservoir, to prevent too great pressure on the dam, aka a spillway |
| wasteweirs | WASTEWEIR, a sluiceway or passage for superfluous water in a reservoir, to prevent too great pressure on the dam, aka a spillway |
| SPILLWAY | Surplus-water passage |
| hydroelectric | Relating to or denoting the generation of electricity using flowing water (typically from a reservoir held behind a dam or other barrier) to drive a turbine that powers a generator |
