| Answer | Crossword Clue |
|---|---|
| SPILLWAY | Surplus-water passage |
| spillways | A passage for surplus water from a dam |
| spillway | A passage for surplus water from a dam |
| drain | discharge surface or surplus water |
| drainpipe | a pipe used for carrying off surplus water |
| drainpipes | DRAINPIPE, a pipe used for carrying off surplus water |
| catchwater | a drain or ditch for collecting surface or surplus water |
| sluices | An artificial water channel for carrying off overflow or surplus water |
