Mayfield Plunge Pool Barrier

Lewis County, Washington (near None)

River/Stream: Cowlitz River

Low Hazard

Failure would cause minimal damage

Key Facts

Dam Type
—
Height
14 ft
Dam Length
200 ft
Reservoir Storage
60 acre-ft
Year Completed
1963
Primary Purpose
Hydroelectric
Owner Type
Public Utility
Max Discharge
313,000 cfs

Condition Assessment

SatisfactoryLast inspected: 2025-08-21

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

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

Location

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Quick Stats

NID ID
WA00751
State
Washington (WA)
Coordinates
46.50270, -122.59150
Age
63 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.