Denley

Lewis County, New York (near Port Leyden)

River/Stream: Black River

Low Hazard

Failure would cause minimal damage

Key Facts

Dam Type
Concrete
Height
29 ft
Dam Length
350 ft
Reservoir Storage
350 acre-ft
Year Completed
1912
Primary Purpose
Hydroelectric
Owner Type
Not Listed
Max Discharge
17,400 cfs

Condition Assessment

SatisfactoryLast inspected: 2019-09-19

Hazard Classification: Low — 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
NY00310
State
New York (NY)
Coordinates
43.54530, -75.32510
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.