General

 
• Vicinity Map
• Region (Map) ............... Upper Colorado
• State (Map) ............................... Colorado
• County ...................................... Montrose
• Project ............... Colorado River Storage
• Dam type ....  double curvature thin arch
• Location .........  20 mi E of Montrose, CO
• Watercourse .................  Gunnison River
• Reservoir ....................................... Crystal
• Original construction .............. 1973-1976
• National ID Number ................. CO00387
• Hydrologic Unit Code ........................

Hydraulics

• Total storage to
    El. 6755 .............................. 26,000 acre-ft
• Service spillway
    Capacity at El. 6772 ............... 41,350 cfs
• Outlet works
    Capacity at El. 6772 ................. 2,070 cfs

Dimensions

• Crest Elevation .............................. 6772.0 ft
• Structural Height ................................ 323 ft
• Hydraulic Height ................................ 227 ft
• Crest Length ....................................... 635 ft
• Crest Width ........................................... 10 ft
• Base Width ............................................ 29 ft
• Volume of Concrete ............. 147,000 cu yd

Hydrology

• Current Reservoir Storage
• Drainage area ............................ 3,970 sq mi
• Hydrometeorological Report ....... HMR 49
• PMF ..................... 1989 June general storm
• Volume .......... 992,000 acre-ft over 15 days
• Peak inflow .................................. 75,400 cfs
• Maximum water surface ............... 6,777.8 ft