The structure was built between 1931 and 1936, during the Great Depression. It cost $49 million to build, and was first called Boulder Dam. Thanks to President Herbert Hoover’s financial support, it was renamed to Hoover Dam. It measures 221 meters in height and has a length of 379 meters, says Kenny Slaught. The dam can give more than 4,2 billion kWh 2 per year and has a capacity of 35.000 cubic kilometers.