Deconstructing History: Hoover Dam (4) TV-14 Play video Select your TV provider to log in to have full access to videos Select your TV provider See all providers Don't see your TV provider? Learn more You can access this video on the free HISTORY® apps. *You must verify your TV provider towatch this video on the App Your Parental Control settings do not allow you to view this content. Deconstructing History: Hoover Dam (4 min) TV-14 Did you know that the Hoover Dam supplies electricity to more than 20 million people? Get all the facts on this marvel of engineering.