Flat Rock

St. Lawrence County, New York (near Fine)

River/Stream: East Branch Oswegatchie River

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Concrete
Height
72 ft
Dam Length
568 ft
Reservoir Storage
3,382 acre-ft
Year Completed
1925
Primary Purpose
Hydroelectric
Owner Type
Private
Max Discharge
12,000 cfs

Condition Assessment

SatisfactoryLast inspected: 2022-06-15

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
NY00413
State
New York (NY)
Coordinates
44.22150, -75.07380
Age
101 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.