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Table of Contents
Foreword
Preface
Glossary

Chapter 16: Water Resources

16.29: Seven Sisters Dam on the Winnipeg River

The Winnipeg River used to traverse a series of rapids between the Ontario border and Lake Winnipeg. The fall in water level has been exploited for hydropower by building a succession of dams along the river. One of them is the Seven Sisters Dam built in two stages, the first completed in 1931 and the second in 1952; the dam was reconstructed in 1979.

The large building in centre bottom 1 houses the generators and the spillway is located at the bottom of the photo 2. Water build up in the forebay 3 has required the building of a dike 4 to prevent flooding of surrounding land. The riparian flow of the river is seen below the generators 5 and the irregular bed of the former river channel is seen to the south 6. A 385 feet (117.5 m) communication tower throws a shadow just west of north 7 indicating that the photo was taken in late morning sun time.

 

Figure 16.29: Seven Sisters Dam on the Winnipeg River

Figure 16.29: Seven Sisters Dam on the Winnipeg River

Figure 16.29

Vertical air photograph: MH98893002-36

Flight height: 3,400 a.s.l.; lens focal length: 152.803 mm

Scale: 1:5,000 (approx.)

Date: May 9, 1998

Location: Township 13; Range 11E

Map sheets: 1:250,000 62I Selkirk

                    1:50,000 62I/1 Molson