Related Clues:
- It holds back the water in Holland
- Certain blocker
- Structure with high-water marks
- Bank in need of support?
- Certain water blocker
- Spillway spot
- Water checker?
- Bad place for a breach
- Earthen dike
- Structure with a spillway
- Hoover, notably
- For openers, don't ask me to hold back
- Wall restraining water
- Female parent; obstruction
- Obstruction causing injury with loss of time