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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