High Falls Reservoir Report
Last Updated: December 19, 2025
High Falls in Moffitsville, New York, is a concrete dam on the Saranac River with a primary purpose of generating hydroelectric power.
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Summary
Completed in 1917, this dam stands at a height of 62.5 feet and has a storage capacity of 2,670 acre-feet. The dam's spillway is uncontrolled, with a width of 268 feet, and it has a maximum discharge of 40,500 cubic feet per second.
Owned by a public utility and regulated by the Federal Energy Regulatory Commission, High Falls is a significant structure in Clinton County, New York. With a drainage area of 490 square miles, this dam plays a crucial role in managing water resources and controlling flooding in the region. Despite being classified as a high hazard potential structure, the condition assessment for High Falls is currently not available, highlighting the importance of regular inspections and risk management measures for this key piece of infrastructure.
As a key contributor to the local energy grid and water management system, High Falls serves as a reminder of the intricate relationship between water resources, climate, and infrastructure development. With its historical significance and ongoing role in providing clean energy, this dam represents a blend of engineering innovation and environmental stewardship in the face of changing climate dynamics. By understanding and maintaining structures like High Falls, we can ensure a sustainable future for water resources and energy production in the region.
Year Completed |
1917 |
Dam Length |
1014 |
Dam Height |
62.5 |
River Or Stream |
Saranac River |
Primary Dam Type |
Concrete |
Surface Area |
93 |
Drainage Area |
490 |
Nid Storage |
2670 |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
63 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
High Falls