Upper Sunshine

Park County, Wyoming (near MEETEETSE)

River/Stream: GREYBULL RIVER (OFFSTREAM)

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Earth
Height
160 ft
Dam Length
1,150 ft
Reservoir Storage
65,100 acre-ft
Year Completed
1942
Primary Purpose
Irrigation
Owner Type
Private
Max Discharge
1,520 cfs

Condition Assessment

FairLast inspected: 2025-09-30

Hazard Classification: High — This describes the potential consequences of dam failure, not the likelihood of failure.

Condition Assessment: Fair — This describes the current physical condition of the dam based on the most recent inspection.

Location

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Quick Stats

NID ID
WY01097
State
Wyoming (WY)
Coordinates
44.06070, -109.04970
Age
84 years

Nearby Dams

External Resources

Data sourced from the National Inventory of Dams (NID). Information may not reflect the most current status of this dam. Hazard classification reflects potential consequences of failure, not the likelihood of failure or the current condition.