General

• Vicinity Map
• Region (Map) ............... Lower Colorado
• State (Map) ................................. Arizona
• County ............................. Maricopa, Gila
• Project ....................................... Salt River
• Dam type ...................... Composite thick arch,
    mass concrete overlaying cyclopean-masonry
• Location .......... 76 mi NE of Phoenix, AZ
• Watercourse ............................. Salt River
• Reservoir ...... Theodore Roosevelt Lake
• Original construction .............. 1903-1911
• Modified in ............... 1920, 1936, 1950, 1973,
    1986-1996
• National ID Number ................. AZ10317
• Hydrologic Unit Code ................

Hydraulics

• Total storage to
    El. 2218 ......................... 2,910,200 acre-ft
• Right and left spillway allowable
    Capacity at El. 2217.4 .......... 150,000 cfs
• Outlet works
    Capacity at El. 2151 ............... 11,657 cfs

Dimensions

• Crest Elevation ................................. 2218 ft
• Structural Height ................................ 356 ft
• Hydraulic Height ................................ 249 ft
• Crest Length ....................................... 723 ft
• Crest Width ....................................... 21.6 ft
• Base Width ......................................... 184 ft
• Volume of Concrete ............. 606,000 cu yd

Hydrology

• Drainage area ............................ 5,830 sq mi
• Hydrometeorological Report ............... NA
• PMF .......................................... 1986 Winter
• Volume ....... 3,020,000 acre-ft over 16 days
• Peak inflow ................................ 654,000 cfs
• Maximum water surface ................ 2217.4 ft