Upper Bear

Amador County, California (near Pioneer)

River/Stream: Bear River

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Rockfill
Height
77 ft
Dam Length
760 ft
Reservoir Storage
7,306 acre-ft
Year Completed
1900
Primary Purpose
Hydroelectric
Owner Type
Private
Max Discharge
19,280 cfs

Condition Assessment

SatisfactoryLast inspected: 2025-08-19

Hazard Classification: High — 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
CA00379
State
California (CA)
Coordinates
38.55770, -120.21630
Age
126 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.