Granite Reef Diversion Dam is located about 4 miles downstream of the confluence of the Salt and Verde Rivers and about 22 miles east of Phoenix. The dam was constructed between 1906 and 1908 by Reclamation to divert water released from storage dams on the Salt and Verde Rivers to Salt River Project canals. The Arizona Canal serves the north side of the project; the South Canal serves the south side. From these two main canals, water is diverted to secondary canals, then to laterals through which water is delivered to farms, cities, and Indian tribes.
The dam is 1,128 feet long, and 29 feet high. The sluiceway contains four 15-by-9-foot slide gates onthe North Side Canal, and two 15-by-9-foot slide gates on the South Side Canal. The North Side Canal headworks contain eighteen 7-by-5-foot slide gates, while the South Side headworks contain nine of these gates.
Concrete ogee weir
22 miles east of Phoenix, Arizona
National ID Number
Hydraulic Height (Normal Operating Depth at Dam)
Volume of Dam Construction Materials
Hydraulics & Hydrology
Diversion Capacity at Elevation
North Side Canal - 2000 cfs
South Side Canal - 1600 cfs
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
Organization: Area Office Manager Address: Phoenix Area Office City: Phoenix, AZ 85306-6200 Phone: 623-773-6200
More Information about the U.S. Bureau of Reclamation