Theodore Roosevelt Dam


Theodore Roosevelt Dam, the first major structure constructed by the Bureau of Reclamation on the Salt River Project, is located about 76 miles northeast of Phoenix and 30 miles northwest of Globe, Arizona. The dam, completed in 1911, was subsequently modified between 1989 and 1996. The original dam was a cyclopean, rubble-masonry, thick-arch structure that spanned the Salt River to form a reservoir of 1,381,580 acre-feet. It was 280 feet high, 723 feet long at the crest, and contained 355,800 cubic yards of masonry,

In 1936, the spillways were modified by lowering crests 6 feet to increase their capacities, and installing individual gate hoists, operating motors, and two 5-kilovolt-ampere gasoline-engine driven generators.

From 1989 to 1996, the dam was modified by the Bureau of Reclamation. The modification raised the dam 77 feet in elevation and made the dam a concrete-gravity arch dam, increasing its water conservation storage capacity by 20 percent, adding flood control space to the reservoir, and addressing concerns about its safety as well as the safety downstream dams. In addition to raising the dam's height, the modification included construction of two new spillways, installation of new outlet works, and powerplant modifications. Also, existing recreation facilities at Roosevelt Lake were improved, and new recreational facilities were constructed.

RegionFacilities in Lower Colorado | Lower Colorado Home Page
CountyMaricopa, Gila
ProjectSalt River
Dam TypeConcrete gravity arch
ReservoirTheodore Roosevelt Lake
WatercourseSalt River
LocationOn the Salt River, about 76 miles northeast of Phoenix, Arizona
Original Construction1903-1911
Modified Construction1920, 1936, 1950, 1973, 1986-1996
National ID NumberAZ10317
Hydrologic Unit Code

Structural Height357 ft
Hydraulic Height (Normal Operating Depth at Dam)249 ft
Top Parapet (Elevation)
Spillway Crest Elevation
Crest Elevation2218 ft
Crest Length1210 ft
Crest Width21.6 ft
Base Width196 ft
Volume of Dam Construction Materials606,000 cu-yds
Streambed at Dam Axis
Top of Exclusive Flood Control Pool (Elevation)
Top of Joint Use Pool (Elevation)
Top of Active Conservation Pool (Elevation)2151 ft
Top of Inactive Conservation Pool (Elevation)
Top of Dead Storage Pool (Elevation)

Hydraulics & Hydrology
Total Water Storage at Elevation2,910,200 acre-ft at 2218
Maximum Water Surface Elevation2217.40 ft
Normal Water Surface Elevation
Spillway Type
Auxiliary Spillway
Spillway Capacity at Elevation 150,000 cfs
Auxiliary Spillway Capacity at Elevation
Uncontrolled Spillway Capacity at Elevation
Outlet Works Capacity at Elevation11,657 cfs at 2151 ft
Diversion Capacity at Elevation
Drainage Area5,830 sq mi
Hydrometeorological Report (HMR)
Probable Maximum Flood (PMF) Report1986 Winter

Contact Information
TitleArea Office Manager
OrganizationPhoenix Area Office
Address6150 West Thunderbird Road
CityGlendale, AZ 85306-6200
Phone (Fax)623 773-6480
Phone (Office)623 773-6200
OrganizationArea Office Manager
AddressPhoenix Area Office
CityPhoenix, AZ 85306-6200
Phone (Office)623 773-6200

Last updated: Jun 29, 2009