Nelson River

The Nelson River is a major river in Manitoba, Canada, flowing from Lake Winnipeg northeast to Hudson Bay. Its extensive hydroelectric development makes it one of the country’s most heavily regulated rivers.

Nelson River Hydroelectric Project: A network of dams, generating stations, and diversions that produces hydroelectricity in northern Manitoba. It regulates much of the Nelson River’s flow to generate electricity.
Lake Winnipeg: A large lake in Manitoba whose northern outflow forms the Nelson River. Changes to the river’s outflow have altered water levels in the lake.
Nelson River watershed: The area of land whose water drains through the Nelson River system into Hudson Bay. Its watershed gathers water from a vast region of central Canada.
Burntwood River: A river in northern Manitoba that joins the Nelson River near Split Lake. It carries water from the Churchill River diversion into the Nelson system.
Lake Winnipeg Regulation: A water-control project that regulates Lake Winnipeg’s outflow through the Nelson River system. It increases and controls water supplied to the river for hydroelectric generation.
Nelson River Hydroelectric Project environmental effects: Ecological and social changes associated with hydroelectric development on Manitoba’s Nelson River system. The project changed water levels, shorelines, fisheries, and local livelihoods.
Basin of Hudson Bay: The immense drainage basin whose rivers and lakes flow toward Hudson Bay. The Nelson is a major outlet from this continental drainage basin.
Churchill River (Manitoba): A major river in northern Manitoba that originally flowed northeast to Hudson Bay. Part of its flow is diverted into the Nelson River basin.
Churchill River Diversion: A project that diverts water from Manitoba’s Churchill River into the Burntwood River and Nelson River system. It adds Churchill River water to the Nelson system for power production.
Fisheries of the Nelson River: Fish populations and fishing activities in Manitoba’s Nelson River and connected waters. Flow regulation and flooding have affected fish habitat and fishing communities.

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