"The Wild River and the Great Dam: The Construction of Hoover Dam and the Vanishing Colorado River" by Simon Boughton. My rating: 4 out of 5 stars. Published in 2024.
Book description: In this Middle Grade book, the author chronicles the construction of the Hoover Dam. There is a complicated history behind one of the country’s most recognizable and far-reaching landmarks—and its lasting political and environmental effects on the Colorado River and the American West. At the time of its completion in 1936, Hoover Dam was the biggest dam in the world and the largest feat of architecture and engineering in the country—a statement of national ambition and technical achievement.
I found this book to be comprehensive in scope and great for adult readers also.