Great Construction Projects The Hoover Dam
The Hoover Dam • The Hoover Dam, originally known as Boulder Dam, is both the world's largest electric-power generating station and the world's largest concrete structure. • It is currently the world's 35th-largest hydroelectric generating station • Named after Herbert Hoover • Gave many people jobs during the Great Depression • There were 112 deaths associated with the construction of the dam; 96 of them at the construction site
The Hoover Dam –Construction • The construction period was from April 20, 1931 to March 1, 1936, ending over two years ahead of schedule. • The construction cost was $49 million in 1936, which would be $736 million in 2008, due to inflation. • Originally, there were 16 big generators, 8 on each side of the river, but 2 smaller ones replaced one big one on the Arizona side, adding up to 17 generators total. • The construction team totaled approximately 5,000 people at any given time, and a total of about 15,000 people were employed over the course of construction.
Dam height: 726.4 ft (221.4 m) Dam length: 1244 ft (379.2 m) Dam thickness: 660 ft (200 m) at its base; 45 ft (15 m) thick at its crest. Concrete: 4.36 million yd³ (3.33 million m³) Traffic across the dam: 13,000 to 16,000 people each day The Hoover Dam –Statistics