San Andreas

San Mateo County, California (near San Mateo)

River/Stream: San Andreas Creek

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Earth
Height
107 ft
Dam Length
727 ft
Reservoir Storage
19,027 acre-ft
Year Completed
1870
Primary Purpose
Water Supply
Owner Type
Local Government
Max Discharge
—

Condition Assessment

FairLast inspected: 2024-01-18

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
CA00129
State
California (CA)
Coordinates
37.57980, -122.41290
Age
156 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.