The Stewart Mountain Dam is a concrete thin
arch dam
An arch dam is a concrete dam that is curved upstream in plan. The arch dam is designed so that the force of the water against it, known as hydrostatic pressure, presses against the arch, causing the arch to straighten slightly and strengthe ...
located 41 miles northeast of
Phoenix, Arizona
Phoenix ( ; nv, Hoozdo; es, Fénix or , yuf-x-wal, Banyà:nyuwá) is the List of capitals in the United States, capital and List of cities and towns in Arizona#List of cities and towns, most populous city of the U.S. state of Arizona, with 1 ...
. The dam is long, high, and was built between 1928 and 1930. The dam includes a 13,000 kilowatt (kW) hydroelectric generating unit that is operated by SRP (Salt River Project), an Arizona public utility. It is primarily operated during the summer months. The dam forms
Saguaro Lake as it slows the passage of the
Salt River in
Maricopa County, Arizona
Maricopa County is in the south-central part of the U.S. state of Arizona. As of the 2020 United States census, 2020 census, the population was 4,420,568, making it the state's most populous county, and List of the most populous counties in the ...
. It was named after a ranch that used to be located nearby known as the Old Stewart Ranch.
A camp was built just below the dam in 1927 to house the construction workers; after the damn's completion it was turned into the Saguaro Lake Guest Ranch.
The dam was listed on the
National Register of Historic Places
The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic ...
in 2017.
Gallery
File:"Stewart Mountain Dam. View looking downstream of partly completed right wall with piers 13-14 and supported floor... - NARA - 294650.tif, 25 June 1936
File:"Stewart Mountain Dam. View from left end of gate operating platform, left wall about 90^ complete except 50 feet at... - NARA - 294644.tif,
File:"Stewart Mountain Dam. View from left end of gate operating platform, channel excavation about 95^ complete." - NARA - 294643.tif,
File:"Stewart Mountain Dam. View looking toward right wall. Supported floor 4-5 in foreground." - NARA - 294628.tif,
References
External links
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Dams in Arizona
Hydroelectric power plants in Arizona
Arch dams
Buildings and structures in Maricopa County, Arizona
United States Bureau of Reclamation dams
Dams completed in 1930
Dams on the Salt River (Arizona)
Historic American Engineering Record in Arizona
National Register of Historic Places in Maricopa County, Arizona
Dams on the National Register of Historic Places in Arizona