Hells Canyon

Adams County, Idaho (near Rogerburg, WA)

River/Stream: Snake River

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Gravity
Height
330 ft
Dam Length
910 ft
Reservoir Storage
188,000 acre-ft
Year Completed
1967
Primary Purpose
Hydroelectric
Owner Type
Private
Max Discharge
300,000 cfs

Condition Assessment

SatisfactoryLast inspected: 2022-09-28

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
ID00055
State
Idaho (ID)
Coordinates
45.24310, -116.70050
Age
59 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.