The dam is located at the outflow of John Hart Lake.

The BC Power Commission built the first generating station in 1947, it included above ground wood stave penstocks and six turbine-generator units for a total capacity of 126 MW.

[3] A review begun in 1984 discovered the dam was built on loose, saturate sands and silts.

[4] Due to seismic risks, a 68-year-old facility and lower than optimal power generation, in 2014 contracts were awarded to SNC-Lavalin to design and build a generating station and two new 2 km long, six meter penstocks.

[14] This article about a location on the Coast of British Columbia, Canada is a stub.