General

• Region (Map) : ................... Upper Colorado
• State (Map) ........................ Wyoming
• County ................................ Sweet Water
• Project: ................................ Eden
• Dam type: ........................... Earthfill
• Location: ............................ 7 mi N of Farson
• Watercourse: ..................... Big Sandy Creek
• Reservoir: ........................... Big Sandy
• Construction Date: ............ 1941-1952
• National ID Number .......... WY01387
• Hydrologic Unit Code ....

Dimensions

• Crest Elevation of Dam: .....................  6769.0 ft
• Structural Height of Dam: ...................     85.0 ft
• Crest Length: ........................................ 2350.0 ft
• Top of Joint Use: ...................................        NA
• Top of Active Conservation: ............. 6757.5 ft
• Top of Inactive Conservation: ............        NA
• Spillway Crest: ...................................... 6757.5 ft
• Top of Dead Storage: .......................... 6720.0 ft
• Streambed at Dam Axis : ..................... 6700.0 ft

Hydraulics

• Normal Water Surface Elev: ............... 6757.5 ft
• Hydraulic Height: ...................................  57.5 ft
• Service Spillway Type:
•    Uncontrolled  Crest    ................................Yes
•    Morning-Glory ........................................... No
•    Crest Length    ............................................ NA
•    Gated      ....................................................... No
•    Capacity at Elev:  6762.8  ft,             7,350  cfs
• Auxiliary Spillway ......................................... No
•     Capacity at Elev.   ..................................... NA
• Outlet Works Capacity at
•     Elevation  6762.8 ft.,  .......................... 635 cfs

Hydrology

• Drainage Area: ................................ 399.0 sq mi
• Hydrometeorological Report               HMR 49
• Flood Type: ...............................Winter General
• Storm Duration: ........................................ 72 hrs
• Probable Maximum Flood (PMF) Report:
•   Peak Inflow: ...................................... 21,400 cfs
•   Inflow Volume: ......................... 110,110 acre-ft
•   Flow Duration: ..................................... 15 days
•   PMF Routing MWS Elev.: ........................ NA
•   Initial Routing Elev: ........................... 6757.5 ft
•   Study Date: ....................................... June 1981