Dam commemorative envelope celebrates Hoover’s 75th

The Postal Service is celebrating the 75th Anniversary of Hoover Dam with a commemorative envelope.  The envelopes are $7.50 and will be available for purchase beginning Friday, Oct. 1. Send your money and mailing instructions to the Boulder City Post Office, 1101 Colorado St, Boulder City, NV, 89005.

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As one of America’s finest construction projects, Hoover Dam is nothing short of an enduring engineering marvel

This year marks 75 years since the dedication of the 726-foot-high dam. Built during the Great Depression, it consists of 3.25 million cubic yards of concrete that continues to be strong and stable and weighs 6.6 million tons.


No city was more closely tied to the project than Boulder City, NV, which continues to serve as “hometown” to the dam. The city was built to house the thousands of workers and their families who built the dam.