Whittier Narrows Dam

Los Angeles County, California (near WHITTIER)

River/Stream: SAN GABRIEL RIVER

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Earth
Height
56 ft
Dam Length
16,960 ft
Reservoir Storage
66,702 acre-ft
Year Completed
1957
Primary Purpose
Flood Risk Reduction
Owner Type
Federal
Max Discharge
307,900 cfs

Condition Assessment

Not AvailableLast inspected: 2022-07-07

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
CA10027
State
California (CA)
Coordinates
34.02090, -118.05497
Age
69 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.