Picture this: It's 1931 and you are asked to pour 4.36 million cubic yards of concrete. Ready mix has just been founded, it's the Great Depression, and you are pouring concrete in the middle of the desert. Sounds like one heck of a job!
Today marks the 85th anniversary of the final concrete pour of the Hoover Dam. The U.S. Bureau of Reclamation devised plans for this massive dam on the border of Arizona and Nevada in hopes taming of providing water and hydroelectric power to the Southwest while also taming the Colorado River. This 60 story arched concrete dam took five years to complete at a rate of 160,000 cubic yards of concrete per month!