Mariposa Dam

Mariposa County, California (near LE GRAND)

River/Stream: MARIPOSA CREEK

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Earth
Height
88 ft
Dam Length
1,330 ft
Reservoir Storage
21,500 acre-ft
Year Completed
1948
Primary Purpose
Flood Risk Reduction
Owner Type
Federal
Max Discharge
30,000 cfs

Condition Assessment

Not AvailableLast inspected: 2023-03-22

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

Condition Assessment: Not Available — This describes the current physical condition of the dam based on the most recent inspection.

Location

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Quick Stats

NID ID
CA10107
State
California (CA)
Coordinates
37.29118, -120.14789
Age
78 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.