Besides the contribution of being the inspiration of the Dam's name, Herbert Hoover was the political motion of the project. Since the Dam would affect 7 states, it was crucial to get government help. Former president Hoover allowed the concept to become reality through negotiations and eventually through The Colorado River Compact, 1922. He pushed for the 1928 Boulder Canyon Project Act and eventually in 1930 authorized the project. The Colorado River Compact was important as it brought together the seven states in question to divide the water rights so the project could move forward. Because of these foundational contribution to the project, the dam was named Hoover Dam. 

Over the years people have attempted to rename the dam. Harold Ikes in 1933 wanted to revert the name to 'Boulder Dam". In 1935 Franklin D. Rosevelt supported this idea, and the dam was referred to the Boulder Dam. Fortunately in 1947, Congress (under the Truman administration) restored the Hoover Dam name. It is important to note that the later was more of a political move. The former change (to Boulder Dam) was rationalized by the thought process that something should not be named after a living person (as those act more as a memorial).

Thanks to the innovations of the Chief engineer, Frank Crowe, including the high-speed cableway concrete delivery, and his work experience with other dam projects, the Hoover Dam was finished years before the approximated date. He applied himself alongside those he managed, rather than leading from a desk. 

The high-speed cableway was essential to their face-paced construction as it allowed a 20-ton bucket to be placed every 78 seconds. 

The task of Walker and his team? Selecting the best possible site to build the Hoover Dam. And so they chose the Black Canyon after thorough and meticulous analysis. The 'expeditions' he and his team went out on were unsafe, the conditions of the canyons greatly relied upon the weather. As storms could create unsafe situations, swelling and fast-paced water.