On March 4, 1947, California Congressman Jack Anderson submitted House Resolution 140 to "restore" the name Hoover Dam.
A Congressional Act of February 14, 1931, made the name "Hoover Dam" official.
The hardhat was invented, and first used, by the construction workers of the Hoover Dam.
The Hoover Dam also serves as a crossing for U.S. Route 93.
Listed on the National Register of Historic Places in 1981, Hoover Dam was designated a National Historic Landmark in 1985.
Hoover Dam today is considered one of the finest examples of Art Deco anywhere in the world.
Hoover Dam is a concrete gravity-arch dam in the Black Canyon of the Colorado River, on the border between Arizona and Nevada.
The section of U.S. Route 93 that approaches and crosses Hoover Dam is woefully inadequate for the increased vehicle traffic of today.