Hoover Dam, Hoover-Basic Magnesium North & South Lines, U.S. Highway 93, Boulder City, Clark County, NV

Significance: The transmission lines served a vital function during WWII by providing electricity generated at Hoover Dam to the Basic Magnesium plant to the south of Las Vegas. After the war, these transmission lines continued to provide power to the Basic Magnesium plant, which was converted to a number of industrial uses and provided an industrial economic base for the Las Vegas Valley. Through interconnection with Nevada Power Company substations and distribution networks, these lines supported the rapid expansion in gaming and residential development of Las Vegas in the post-war period.
Survey number: HAER NV-27-O
Building/structure dates: 1942 Initial Construction
National Register of Historic Places NRIS Number: 81000382