Whitewater Recreational Releases from Thomson Dam for 2014:

  • June 28-29 - 10am-7pm
  • July 26-27 - 10am-7pm
  • August 23-24 - 10am-7pm
**Target discharge is 600 cubic feet per second (cfs); however, actual discharge may vary according to conditions at the time of the event.

Water Levels and River Flows

 

 

Last updated:
Monday September 1, 2014 as of 11:00 PM

  24 Hour Hot Line   218-720-2777

Environmental Report - FDL Drawdown

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) 122
 St. Louis River thru Knife Falls Dam 579 630
 St. Louis River thru Scanlon Dam 559 737
 St. Louis River flow bypassed thru Thomson Dam 750
 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
1368.11
37.80
167
 Boulder Lake Reservoir 1390.55
18.50
1390.38
18.33
11
 Fish Lake Reservoir 1351.72
18.50
1351.31
18.09
11
 Rice Lake Reservoir 1375.57
6.00
1375.18
5.61
2
 Whiteface Reservoir 1452.92
34.00
1451.71
32.79
27

Total discharge for St. Louis River from the Reservoirs               205

 Mississippi River Basin Previous 24 Hr Average Flow Flow Today
7a.m.
 Crow Wing River thru Pillager Dam 1834 1824
 Crow Wing River thru Sylvan 1902 1720
 Mississippi River thru Blanchard Dam 7324 6901
 Prairie River thru Prairie River Dam 135 107
  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
graph
1418.83 275
 White Iron Lake -- 1385.19 --
 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
graph
1385.26 154
* 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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