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The Portage Diversion (also known as the Assiniboine River Floodway) is a water control structure on the Assiniboine River
Assiniboine River

The Assiniboine River is a long river that runs through the prairies of Western Canada in Saskatchewan and Manitoba.It is a typical meandering river with a single main channel embanked within a flat, shallow valley at some places, and a steep valley at other places....
 in Manitoba
Manitoba

Manitoba is a prairie provinces in Canada, which has an area of 647,797 square kilometres and a population of 1,207,959 , with more than half located within the Winnipeg Capital Region ....
, Canada
Canada

Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean....
. The project was made as part of a larger attempt to prevent flooding in the Red River Valley
Red River Valley

The Red River Valley is a region in central North America that is drained by the Red River of the North. It is significant in the geography of North Dakota, Minnesota, and Manitoba for its relatively fertile lands and the population centers of Fargo, North Dakota, Grand Forks, North Dakota, and Winnipeg, Manitoba....
. The Portage Diversion diverts some of the flow of water in the Assiniboine River to a 29 km long diversion channel that empties into Lake Manitoba
Lake Manitoba

Lake Manitoba is Canada's thirteenth largest lake and the world's 33rd largest freshwater lake. It is in central North America, in the Canada province of Manitoba, which the lake is named after....
. This helps prevent flooding on the Assinboine down river from the diversion, including in Winnipeg
Winnipeg

Winnipeg is the capital and largest city of Manitoba, Canada. It is located near the longitude centre of North America, at the confluence of the historic Red River of the North and Assiniboine River Rivers, a point now commonly known as The Forks, Winnipeg....
, where the Assiniboine River meets the Red River
Red River of the North

The Red River is a North American river. Formed by the confluence of the Bois de Sioux River and Otter Tail River rivers in the United States, it flows northward through the Red River Valley and forms the border between the U.S....
.

The diversion cost $20.5 million dollars to construct.






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The Portage Diversion (also known as the Assiniboine River Floodway) is a water control structure on the Assiniboine River
Assiniboine River

The Assiniboine River is a long river that runs through the prairies of Western Canada in Saskatchewan and Manitoba.It is a typical meandering river with a single main channel embanked within a flat, shallow valley at some places, and a steep valley at other places....
 in Manitoba
Manitoba

Manitoba is a prairie provinces in Canada, which has an area of 647,797 square kilometres and a population of 1,207,959 , with more than half located within the Winnipeg Capital Region ....
, Canada
Canada

Canada is a country occupying most of northern North America, extending from the Atlantic Ocean in the east to the Pacific Ocean in the west and northward into the Arctic Ocean....
. The project was made as part of a larger attempt to prevent flooding in the Red River Valley
Red River Valley

The Red River Valley is a region in central North America that is drained by the Red River of the North. It is significant in the geography of North Dakota, Minnesota, and Manitoba for its relatively fertile lands and the population centers of Fargo, North Dakota, Grand Forks, North Dakota, and Winnipeg, Manitoba....
. The Portage Diversion diverts some of the flow of water in the Assiniboine River to a 29 km long diversion channel that empties into Lake Manitoba
Lake Manitoba

Lake Manitoba is Canada's thirteenth largest lake and the world's 33rd largest freshwater lake. It is in central North America, in the Canada province of Manitoba, which the lake is named after....
. This helps prevent flooding on the Assinboine down river from the diversion, including in Winnipeg
Winnipeg

Winnipeg is the capital and largest city of Manitoba, Canada. It is located near the longitude centre of North America, at the confluence of the historic Red River of the North and Assiniboine River Rivers, a point now commonly known as The Forks, Winnipeg....
, where the Assiniboine River meets the Red River
Red River of the North

The Red River is a North American river. Formed by the confluence of the Bois de Sioux River and Otter Tail River rivers in the United States, it flows northward through the Red River Valley and forms the border between the U.S....
.

The diversion cost $20.5 million dollars to construct. It was completed in 1970. The control dam is 35 feet (11 m) high and 1,400 feet (430 m) long. It has 2 gates that allows 14,600 acre-foot (18,000,000 m³) storage.

See also

  • Red River Floodway
    Red River Floodway

    The Red River Floodway is an artificial flood control waterway in Western Canada, first used in 1969. It is a 47 km long channel which, during flood periods, diverts part of the Red River of the North's flow around the city of Winnipeg, Manitoba to the east and discharges it back into the Red River below the dam at Lockport, Manitoba....
  • Shellmouth Reservoir
    Shellmouth Reservoir

    The Shellmouth Reservoir is a man-made reservoir in Manitoba, Canada. It is located near the border with SaskatchewanThe Shellmouth Dam was built by PFRA....


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