From Conservapedia
The Bureau of Reclamation logo at the Hoover Dam
The
Hoover Dam is built across the
Colorado River between
Nevada and
Arizona. On its completion in 1935 it was the largest concrete structure in the world, and its
hydro-electric power station was the world's largest single producer of
electricity. The dam - also known as the Boulder Dam - impounds
Lake Mead. The Hoover Dam was named after
Herbert Hoover, former President of the United States, who had in the 1920s chaired the commission that brought about the dam's construction.
Further Information
http://www.usbr.gov/lc/hooverdam/History/storymain.html