Significance: The intake house was built to take water in from Lake Sakakawea and conduct it to the powerhouse (HAER ND-15-A) via penstocks and surge tanks (HAER ND-15-B). The intake house maintained trash rack More
Field notes for HAER ND-15-A, Garrison Dam Powerhouse, include information about the switchyard. Significance: The switchyard provides generator and line protection, voltage and and amperage monitoring, and pow More
Significance: The spillway was built to release excess water from Lake Sakakawea whenever high water threatens to overtop and destroy Garrison Dam. Unprocessed Field note material exists for this structure: N1 More
Significance: The powerhouse was built to generate electrical power via hydroelectric turbines and generators, using the water impounded in Lake Sakakwea as its energy source. The electricity feeds into the Wes More