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Santa Fe Railway engineer Francis H. Bainbridge had an idea. The railroad company was already purchasing steel in bulk for the construction of tracks, trestles, and bridges. If steel could be used to build the dams as well, it would save the company time and money.
Construction on the dam began in 1897 and was finished early the next year. Pieces of the dam were constructed off-site and assembled in Johnson Canyon. The final cost was a relatively inexpensive $63,500, or approximately $2 million today. Although the steel dam proved much cheaper and faster to construct than masonry dams, there were justified concerns about its long-term integrity. Only three steel dams were constructed in the U.S., and today the Ashfork-Bainbridge Dam is the only one that still holds a reservoir.
Although they supported the experiment, from the start, the railroad company didn’t trust that the steel dam would work. Around 13 years later, a masonry dam was constructed a mile upstream from the Ashfork-Bainbridge Dam, so that if the steel dam failed, there was still a reservoir in place to supply water for their needs. Although the railroad is gone, both dams are still functional today."
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