Related Clues:

• Flood preventer
• Hoover or Tarbela, e.g.
• Sire's counterpart
• River sight
• Flood control
• Impasse
• Paddock parent
• Irrigation project
• Hoover, e.g.
• Block (up)
• Glen Canyon structure
• River blocker
• Flood barrier
• Boulder, for one
• It may get into deep water