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Watershed Statistics

Rainy Lake watershed information
Area upstream of International Falls

  • 14,500 square miles (37,555 square kilometers) total area
    - 10,135 square miles (26,250 square kilometers), or 70%, in Canada 
    - 4,365 square miles (11,305 square kilometers), or 30%, in the United States
  • 2,025 square miles (5,245 square kilometers) water
  • 12,475 square miles (32,310 square kilometers) land 

International Falls/Fort Frances Dam

  • Controls the level of Rainy Lake
  • The dam straddles the Canadian/United States border
  • United States side (Boise Inc. owned and operated)
    - 7 hydroelectric waterwheel generators
    - No spillway gates
  • Canadian side (H2O Power LP owned and operated)
    - 8 hydroelectric waterwheel generators
    - 15 spillway gates
  • Water is shared between the two owners

 

Namakan Lake watershed information

Area upstream of Kettle Falls

  • 7,200 square miles (18,648 square kilometers) total area
    - 3,290 square miles (8,521 square kilometers), or 46%, in Canada
    - 3,910 square miles (10,127 square kilometers), or 54%, in the United States
  • 1,000 square miles (2,590 square kilometers) water
  • 6,200 square miles (16,058 square kilometers) land
 
Kettle Falls and Squirrel Falls Dams
  • Control the level of Namakan and Kabetogama Lakes
  • The Kettle Falls Dam straddles the Canadian/United States border
    - United States side (Boise Inc. owned and operated)
    • 2 spillway gates
    • 1 fish ladder spillway gate (always open)
  • No hydroelectric waterwheel generators
    - Canadian side (H2O Power LP owned and operated)
    • 2 spillway gates
    • No hydroelectric waterwheel generators
  • The Squirrel Falls Dam is entirely in Canada (H2O Power LP owned and operated)
    • 4 spillway gates
    • 1 fish ladder spillway gate (always open)

     

    No hydroelectric waterwheel generators