International Joint Commission

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2 " ""- ' PRELIMINARY REPORT TO International Joint Commission RELATING TO OFFICIAL REFERENCE RE LEVELS OF RAINY LAKE AND OTHER UPPER WATERS. PLATES, - BY P. C. BULLARD, S. S. SCOVIL, Majar, Corps of Engineers, Engineer for the United States Comulting Engineer, Engineer for the Dominion of Canada OlTAWA F. A. ACLAND PRINTER TO THE KING'S MOST EXCELLENT MAJESTY igao -

3 INTERNATIONAL JOINT COMMISSION JOHN H. BARTLETT, Chairman, FRED T. DUBOIS, P. C. MCCUMBER, GEORGE CHARLES A. MAQRATH, Chairman, SIR WILLIAM HEARST, K.C.M.G., W. KYTE, K.C. WILLIAM H. SMITH, Secretary. LAWRENCE J.. BURPEE, Secretary.

4 TABLE OF CONTENTS PLATE Profiles: Main Water Route. Saganaga Lake to Namakan Lake. and along International Boundary 1... Rating Curve of Discharge through Outlet of Northern Light Lake... 2 Rating Curve of Discharge through Outlet of Saganaga Lake... 3 Rating Curve of Discharge through Outlet of Basswood Lake... 4 Discharge Curve-Relation between Lake Stage and Outflow-Crooked Lake... 5 Discharge curve- elation between Lake Stage and Outflow-Lac La Croix... 6 Discharge Curve of Kettle River-Combined Channels below Kettle Falls... 7 Relation between Rate of Idow. Lake Level and Change in Stage of Namakan Lake- State of Nature... 8 Namakan Lake-Actual Natural Level Namakan Lake-Actual Level and Computed Natural Level Namakan Lake-Actual Level and Computed Natural Level Namakan Lake-Actual Level and Computed Natural Level; Namakan Lake-Actual Level and Computed Natural Level Namakan Lake-Actual Level and Computed Natural Level Namakan Lake-Actual Level and Computed Natural Level Namakan Lake-Actual Level and Computed Natural Level Namakan Lake-Actual Level and Computed Natural Level Discharge Curve of Rainy Lake-Relation between Lake Stage and Outflow Relation between Rate of Inflow. Lake Level and Change in Stage of Rainy Lake-* tate of Nature Rainy Lake-Actual Level and Computed Natural Level Rainy Lake-Actual Level and Computed Natural Level Rainy Lake-Actual Level and Computed Natural Level Rainy Lake-Actual Level and Computed Natural Level Rainy Lake-Actual Level and Computed Natural Level Rainy Lake-Actual Level and Computed Natural Level Rainy Lake-Actual Level and Computed Natural Level Rainy Lake--A ctual Level and Computed Natural Level Rainy Lake-Actual Level and Computed Natural Level Rainy Lake-Actual Level and Computed Natural Level Rating Curves-Outflow from Lake of the WoodsStage of Nature Relation between Rate of Inflow. Lake Level and Change in Stage of Lake of the Woods State of Nature Lake of the Woods-Actual Level and Computed Natural Level Lake of the Woods-Actual Level and Computed Natural Level Lake of the Woods-Actual Level and Computed Natural Level Lake of the Woods-Actual Level and Computed Natural Level Lake of the Woods-Actual Level and Computed Natural Level Lake of the Woods-Actual Level and Computed Natural Level Lake of the WoodsActual Level and Computed Natural Level Lake of the Woods-Actual Level and Computed Natural Level Lake of the Woods-Actual Level and Computed Natural Level Lake of the Woods-Actual Level and Computed Natural Level

5 I I.- L 0 0) I V) PROFILES w -. CT al s -- MAIN WATER ROUTE -9 ad m -I!I2 (SAGANAGA LAKE TO NAMAKAN LAKE) - C -- AND - 2 m Em Z ALONG INTERNATIONAL BOUNDARY -

7 DISCHARGE IN CUBIC' FEET PER SECOND - RATING CURVE

8 DISCHARGE IN CUBIC FEET PER SECOND

9 m XI 7 rn' , <, I r /I a I- // D 1249 T V) m P r $ 1248 m r u 3 C' DISCHARGE CURVE REUTION BEWEEN LAKE STAGE AND OUTFLOW CROOKED LAKE P z P ,000 2,000 3, ,000 6,000 7,OO 0 8,000 9,000 10,000 cn DISCHARGE IN CUBIC FEET PER SECOND * 1 fl I l0,i I I- I d --

10 A I s m a r m r - 2 5; I I86 #7 E r m r'l < 1184 I- 5 C I~ /I INTERNATIONAL JOINT COMMISSION A /,I I~,I r 10 I F RAINY LAKE REFERENCE DISCHARGE CURVE RELATION BETWEEN LAKE STAGE AND OUTFLOW 7 /I v,i I' ,000 4,000 6,000 8,O 00 10, , , E, DISCHARGE IN CUBIC FEET PER SECOND F $ z

11 i3p h 508 f 4 rn w 506 m < m r F' 0 C m = s INTERNATIONAL JOINT COMMISSION X RAINY, LAKE REFERENCE m D'ISCHARGE CURVE 2 > 0 * KETTLE RIVER z498 3 F C X s z? 496 u DISCHARGE IN CUBIC FEET PER SECOND

12 MEAN 10 DAY RATE OF INFLOW-THOUSAND CUBIC FEET PER SECOND

13 508 NAMAKAN LAKE ACTUAL NATURAL LEVEL

21 RAINY LAKE REFERENCE NAMAKAN LAKE I I I I I I 7 > 2 z? w.-

22 s rn w r $ 496 rn I - z r '7' -0 C ul I- 492 s 5' NAL JOINT COMMISSION X V, RAINY LAKE REFERENCE - R 490 D z DISCHARGE CURVE > u - x= g C 3 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I IO,OOO 12,000 14,ooo DISCHARGE IN CUBIC FEET PER SECOND lieproduced from the Report of the Consulting Engineers on the ~ake'of the Woods Levels.

;49 8 r 497 > I; $496 rn 4 $ 495 I w m 494 S Z 3 493 ;e G) 2 492 5.

23 ;49 8 r 497 > I; $496 rn 4 $ 495 I w m 494 S Z ;e G) Q xr 0 a RELATION BETW'EEN RATE OF INFLOW LAKE LEVEL AND CHANGE IN STAGE CI 486 w 0 I , MEAN 10 DAY RATE 0F.IWFLOW-THOUSAND CUBIC FEET PER SECOND 8!a P

26 JAN. FEE. MAR. APRIL MAY JUNE JULY AUG. SEPT. OCT. NOV. DEC. RAINY LAKE ACTUAL LEVEL AND COMPUTED NATURAL LEVEL

$1058 V, in > r m 2 1056 r : 4 C 1054 '3 1052 5 z P 0 5000 \ 10000 15000 20000 25000 30000 35000 40000 45000 50000' w 0 DISCHARGE-CUBIC$

34 1062 r ' D x 1060 rn r- rn < m r I V, in > r m r : 4 C 1054 ' z P \ ' w 0 DISCHARGE-CUBIC FEET PER SECOND Reproduced from the Report of the Consulting Engineats on the Lake of the Woods Levels.

35 MEAN 10 DAY RATE OF INFLOW-THOUSAND CUBIC FEET PER SECOND Reproduced from the Report of the Consulting Engineers on the M e of the Woods Levele.

In the Matter of Emergency Regulation of the Level of

INTERNATIONAL JOINT COMMISSION In the Matter of Emergency Regulation of the Level of Rainy Lake and of other Boundary Waters in the Rainy Lake Watershed. Supplementary Order to the Order Prescribing Method