Portneuf

Caribou County, Idaho (near LAVA HOT SPRINGS)

River/Stream: PORTNEUF RIVER SNAKE RIVER

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
—
Height
55 ft
Dam Length
1,475 ft
Reservoir Storage
20,504 acre-ft
Year Completed
1912
Primary Purpose
Other
Owner Type
Private
Max Discharge
462 cfs

Condition Assessment

FairLast inspected: 2019-11-04

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
ID00180
State
Idaho (ID)
Coordinates
42.87870, -111.94280
Age
114 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.