Mormon Flat Dam, a 224-foot high concrete thin-arch structure, is on the Salt River 51 miles northeast of Phoenix. Constructed by the Salt River Valley Water Users' Association from 1923-1926, it creates a 57,852 acre-foot reservoir.
In 1938, Reclamation completed construction of a new gate structure and a concrete-lined spillway discharge channel, and installed two 50-foot-square stoney regulating gates, hoists, motors, two 25-kilovolt-ampere gasoline-engine driven generators, and a new road to the powerhouse.
General
Project
Salt River
Dam Type
Concrete thin arch
Location
On the Salt River, about 51 miles northeast of Phoenix, Arizona
Latitude
33.5534
Watercourse
Salt River
Original Construction
1923-1926
Modified Construction
1937-1938, 1969-1972
Longitude
-111.4430
Reservoir
Canyon Lake
National ID Number
AZ10313
Base Width
20 ft
Dimensions
Structural Height
224 ft
Crest Length
380 ft
Volume of Dam Construction Materials
59,900 cu-yds
Crest Elevation
1666 ft
Hydraulic Height (Normal Operating Depth at Dam)
142 ft
Crest Width
8 ft
Spillway Crest Elevation
1610 ft
Hydraulics & Hydrology
Spillway Type
Concrete lined channel
Total Water Storage at Elevation
57,852 acre-ft at 1660.5
Spillway Capacity at Elevation
150000.0 cfs at 1671.0
Drainage Area
6101 sq mi
Maximum Water Surface Elevation
1679.04 ft
Contact
Owner
Title: Area Office Manager Organization: Phoenix Area Office Address: 6150 West Thunderbird Road City: Glendale, AZ 85306-6200 Fax: 623-773-6480 Phone: 623-773-6200
Operator
Organization: Area Office Manager Address: Phoenix Area Office City: Phoenix, AZ 85306-6200 Phone: 623-773-6200
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