Long Spruce Generating Station

Long Spruce Generating Station is a run-of-the-river hydroelectric dam on the Nelson River approximately 745 km northeast of Winnipeg in the Canadian province of Manitoba.

It was Manitoba Hydro's fourth generating station to be built on the Nelson River, which flows from Lake Winnipeg to Hudson Bay. The station was built on Long Spruce Rapids. The site is approximately 27 km east of Gillam, Manitoba and is 16 km downstream of Manitoba Hydro's Kettle Generating Station.

The dam is owned and operated by Manitoba Hydro. Its ten turbine-generator units give it a generating capacity of 1010 MW and annual generation around 5.8 terawatt-hours. Each unit produces around 100 MW with an operating head of 26 m and flow of 458 m3/s cubic metres per second. The first concrete for the structures was placed in 1974, with first power delivered in 1977. The station was completed in 1979 at a cost of $CDN 508 million.