Originally named Boulder Dam, and renamed Hoover Dam in 1946. Looking at the face of the dam under construction we can see a 12 foot wide "slot" running from top to bottom. It ran thru the entire structure and included 900 miles of pipe. These pipes carried ice water to cool the concrete as it set. The slot would later be filled in, and as the temperature returned to normal, the dam would expand, wedging itself into the sides of the canyon.
If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.
Share your story
Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.
