General

• Vicinity Map
• Region (Map) ....................... Great Plains
• State (Map) .............................. Wyoming
• County .................................. Hot Springs
• Project ....................... PSMBP-Owl Creek
• Dam type ................... Concrete thin arch
• Location .. 40 mi W of Thermopolis, WY
• Watercourse ...... South Fork, Owl Creek
• Reservoir ...................................... Anchor
• Original construction .............. 1957-1960
  (still in construction status)
• National ID Number ................ WY01298
• Hydrologic Unit Code .................

Hydraulics

• Total storage to
    El. 6441 .............................. 17,354 acre-ft
• Service spillway
    Capacity at El. 6451.5 ............ 13,500 cfs
• Outlet works
    Capacity at El. 6441 .................... 500 cfs

Dimensions

• Crest Elevation .............................. 6452.5 ft
• Top of Parapet Elevation ........... 6456.42 ft
• Structural Height ................................ 208 ft
• Hydraulic Height ................................ 146 ft
• Crest Length ....................................... 660 ft
• Crest Width ........................................ 13.7 ft
• Base Width ......................................... 54.2 ft
• Volume of Concrete ............... 69,350 cu yd

Hydrology

• Drainage area ............................... 131 sq mi
• Hydrometeorological Report .... HMR 55A
• PMF ...................... 1991 June rain-on-snow
• Volume ............. 173,900 ac-ft over 15 days
• Peak inflow ................................... 68,900 cfs
• Maximum water surface ................ 6463.3 ft