http://www.usbr.gov/lc/hooverdam/faqs/damfaqs.html Hoover Dam Hoover dam FAQs the Hoover Dam Hoover dam FAQs Hoover dam FAQs Hoover Hoover Dam Hoover Dam completed Hoover dam FAQs Hoover dam FAQs Hoover http://www.usbr.gov/lc/hooverdam/faqs/damfaqs.html 4,360,000 cubic yards of concrete Hoover dam FAQs Hoover dam FAQs Hoover Dam 726 feet tall Hoover Dam 726 feet tall Hoover Dam's generating capacity Hoover Dam Hoover Dam's generating capacity http://www.usbr.gov/lc/hooverdam/faqs/damfaqs.html Hoover Dam, photo Bureau of Reclamation Hoover Dam, photo Bureau of Reclamation Hoover dam FAQs according to the U.S. Bureau of Reclamation