Stewart Mountain Dam

Stewart Mountain Dam
Stewart Mountain Dam
CountryUnited States of America
LocationMaricopa County, Arizona
Coordinates33°34′00″N 111°32′08″W / 33.56667°N 111.53556°W / 33.56667; -111.53556
StatusOperational
Construction began1928
Opening date1930
Owner(s)United States Bureau of Reclamation
Operator(s)Salt River Project
Dam and spillways
Type of damArch dam
ImpoundsSalt River
Height207 feet (63 m)[1]
Length1,260 feet (380 m)[1]
Elevation at crest1,533 feet (467 m)[1]
Width (crest)8 feet (2.4 m)[1]
Width (base)33 feet (10 m)[1]
Dam volume120,000 cubic yards (92,000 m3)[1]
Reservoir
Total capacity73,613 acre-feet (90,800,000 m3)[1]
Catchment area6,330 square miles (16,400 km2)[1]
Surface area1,260 acres (510 ha)[2]
Power Station
Operator(s)Salt River Project
TypeConventional
Hydraulic head116 feet (35 m)[1]
Installed capacity13 MW

The Stewart Mountain Dam is a concrete thin arch dam located 41 miles northeast of Phoenix, Arizona. The dam is 1,260 feet (380 m) long, 207 feet (63 m) 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. 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.[3]

The dam was listed on the National Register of Historic Places in 2017.

  • 25 June 1936
    25 June 1936

References

  1. ^ a b c d e f g h i "Stewart Mountain Dam". United States Bureau of Reclamation. Retrieved 2013-02-04.
  2. ^ "Stewart Mountain Dam". National Performance of Dams Program, National Inventory of Dams. Stanford University. Retrieved 2013-02-02.
  3. ^ "Ranch History | Saguaro Lake Ranch | Arizona Guest Ranch". Saguaro Lake Guest Ranch. Retrieved 2020-08-11.