Related Clues:

• It keeps the river out of town
• Water holder
• It holds water
• Obstruction
• Mississippi restraint
• Flood controller
• ''Robert E. Lee'' waiting spot
• Where to wait for the Robert E. Lee
• Hoover is one
• Hydroelectric structure
• Fish ladder setting
• Sight along the Mississippi
• Bank that may be created by the government
• Engineering project
• Hoover, for one