Antilon Lake Dam

Chelan County, Washington (near Manson)

River/Stream: Tr-Johnson Creek

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Earth
Height
62 ft
Dam Length
300 ft
Reservoir Storage
2,475 acre-ft
Year Completed
1913
Primary Purpose
Recreation
Owner Type
Public Utility
Max Discharge
360 cfs

Condition Assessment

FairLast inspected: 2023-08-17

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
WA00081
State
Washington (WA)
Coordinates
47.96092, -120.15253
Age
113 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.