Cochrane Dam Reservoir Sediment Excavation Project

Cochrane Dam

Great Falls, Montana
Cochrane Dam is one of six hydroelectric facilities located on the Missouri River that is owned and operated (since 2014) by NorthWestern Energy. The facility began operation in 1958 and is a run-of-the-river project with a generating capacity of 64 megawatts.

Rainbow Redevelopment Project


Great Falls, Montana
The Rainbow Hydroelectric Development, originally built in 1910, is located on the Missouri River near Great Falls, Montana.

Thompson Falls Upstream Fish Passage Project

TFalls Fish Ladder

Thompson Falls, Montana
Thompson Falls Dam was built in 1913 and as with many hydropower facilities at this time fish passage was not a component of construction.