Related Clues:
- Waterway barrier
- Roosevelt or Hoover
- Fish ladder's locale
- Big bank investment?
- Stop from running
- Structure for hydroelectric power
- Glen Canyon ___
- China's Three Gorges ___
- Stream obstruction
- Water-level regulator
- Bank security feature
- Beavers' structure
- Beaver-built barricade
- River restraint
- A mad animal mum