Construction on Roosevelt Dam began in 1903 at the confluence of Tonto Creek and the Salt River. The primary purpose of the project was to provide water storage for the Salt River Project and flood control through the Salt River Valley. The dam was finished in 1911 after several devastating floods had interrupted the construction progress in 1905. At the time of completion in 1911, it was the largest masonry dam in the world with a height of 280 feet (84 m) and a length of 723 feet (216 m) while Roosevelt Lake was for a time the world's largest artificial reservoir. The dam was originally known as "Salt River Dam #1", it was not until 1959 that the dam and reservoir were officially named after Theodore Roosevelt.
In 1989, an ambitious expansion and renovation project was begun at Roosevelt Dam. The dam was resurfaced with concrete by J.A. Jones Construction Company, and its height was raised 77 feet (23 m) to 357 feet (107 m), which had the effect of increasing the storage capacity of Roosevelt Lake by... Read More