Stewart Mountain Dam, Hydroelectric dam in Maricopa County, United States.
Stewart Mountain Dam spans 1,260 feet across the Salt River, rising 207 feet high and forming Saguaro Lake northeast of Phoenix.
Built between 1928 and 1930, the concrete arch dam was developed as part of the Salt River Valley Users' Association electric power generation system.
The National Register of Historic Places added the dam in 2017, recognizing its engineering excellence and contribution to regional development.
The 13-megawatt hydroelectric facility operates primarily during summer months when electricity demand reaches its peak in central Arizona.
The construction workers' camp established in 1927 transformed into the Saguaro Lake Guest Ranch after the dam's completion.
Location: Maricopa County
Elevation above the sea: 466 m
GPS coordinates: 33.56670,-111.53600
Latest update: March 12, 2025 14:39
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