Water Table

Water Levels and River Flows

Last updated: Monday, May 23, 2022 as of 9:12 AM

St Louis River Basin
  Current Flow (cfs) Reservoir Current Elevation Summer Target Current Flow (cfs)
Alden Lake 1264 Island Lake 1369.25 1368.81 2804
Knife Falls Dam 11468 Boulder Lake 1390.56 1390.55 287
Scanlon Dam 9848 Fish Lake 1351.89 1351.72 380
Thomson Dam 7536 Rice Lake 1376.27 1375.57 123
    Whiteface 1453.08 1452.92 496
Total discharge for St. Louis River from the Reservoirs 3688      
Mississippi River Basin
  Current Flow (cfs)
Prairie River Dam 950
Pillager Dam 4643
Sylvan Dam 4184
Blanchard Dam 19424
Kawishiwi River Basin
  Current Elevation Current Flow (cfs)
Birch Lake Reservoir 1419.72 6033
White Iron Lake
Temporarily out of service
Garden Lake Reservoir 1385.81  
Kawishiwi Falls   6891

*Please note: Current flow for the generating stations includes the total flow through the dam plus the flow through the turbines. The two exceptions are the Thomson Dam and Prairie River Dam which display the flow through the dam into their bypass reaches. Due to the unpredictable nature of stream flow, reservoir elevations, and periodic technical difficulties, Minnesota Power cannot guarantee the accuracy of the information displayed.

24 Hour Hotline: 1-800-582-8529

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2022 Thomson Dam Recreational Releases

  • July 16-17
  • July 30-31 (Carlton Days Weekend)
  • August 13-14
  • August 27-28

Releases are expected to be approximately 700 cfs.
For the hours of 10 a.m. to 8 p.m.