Water Levels and River Flows

2009 Thomson Dam Whitewater Releases

 

Last updated Monday February 8, 2010 as of 7 a.m.

  24 Hour Hot Line   218-720-2777

We have converted the present system of measuring reservoir elevations to sea level datum.

St Louis River Basin
Measured in cubic feet per second (cfs) through the dams.
 (includes flow through the turbines plus bypass flow)
Previous 24 Hr Average Flow
Flow Today
7a.m.
 Cloquet River above Island Lake (Alden Lake) 82
 St. Louis River thru Knife Falls Dam 956 912
 St. Louis River thru Scanlon Dam 795 776
 St. Louis River flow bypassed thru Thomson Dam 186
 St. Louis River Hydro Project - Reservoirs Summer
Sea Level
Elevation
(In Feet)
Current
Elevation
7a.m.
(In Feet)
Discharge
in cubic feet
per second
(cfs)
 Island Lake Reservoir
 Island Lake Decision Matrix (pdf)
1368.81
38.50
1364.51
34.20
544
 Boulder Lake Reservoir 1390.55
18.50
1387.21
15.16
89
 Fish Lake Reservoir 1351.72
18.50
1350.35
17.13
42
 Rice Lake Reservoir 1375.57
6.00
1375.11
5.54
17
 Whiteface Reservoir 1452.92
34.00
1450.59
31.67
97

Total discharge for St. Louis River from the Reservoirs               684

 Mississippi River Basin Previous 24 Hr Average Flow Flow Today
7a.m.
 Crow Wing River thru Pillager Dam 773 853
 Crow Wing River thru Sylvan 788 695
 Mississippi River thru Blanchard Dam 2607 2754
 Prairie River thru Prairie River Dam 134 163
  Kawishiwi River Basin Summer Target
Rule Curve

(in Feet)
Current Elevation
7 a.m.

(in Feet)
Discharge in Cubic Feet per Second
(cfs)
 Birch Lake Reservoir 1419.74 on May 1 then decreasing thru summer to 1418.74 by Sept 1 1418.25 247
 White Iron Lake -- 1385.67 --
 Garden Lake Reservoir
 Note: discharge value measured at Kawishiwi Falls
1385.67 from May 15 to June 15 then decreasing thru summer to 1385.17
by Sept 1
1385.60 6
* Due to the unpredictable nature of stream flow, reservoir elevations, and periodic technical difficulties,
Minnesota Power cannot guarantee the accuracy of this information.
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