Newton Falls Lower Reservoir Report

Last Updated: December 16, 2025

Newton Falls Lower, also known as Newton Falls Paper Mill Dam, is a private-owned structure located in Fine, New York, along the Oswegatchie River.


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Summary

Built in 1927, this concrete gravity dam stands at a height of 25 feet and spans 350 feet, with a storage capacity of 115 acre-feet. Operating primarily for hydroelectric purposes, the dam is regulated by the Federal Energy Regulatory Commission and undergoes regular inspections to ensure the safety and functionality of its operation.

With a low hazard potential and moderate risk assessment, Newton Falls Lower remains a critical component of the region's water resource infrastructure. The dam features uncontrolled spillways and two slide gates for water release, with a maximum discharge capacity of 4600 cubic feet per second. Despite its age, the dam is well-maintained and meets regulatory guidelines, providing valuable hydroelectric power while minimizing environmental impact on the surrounding area. Climate enthusiasts and water resource advocates can appreciate the historical significance and operational efficiency of this essential structure in St. Lawrence County, New York.

As climate change continues to impact water resources and energy production, the presence of Newton Falls Lower highlights the importance of sustainable hydroelectric infrastructure. With its rock foundation and multi-arch core design, the dam exemplifies a blend of traditional engineering and modern operational practices. The dam's location within a scenic natural landscape underscores the delicate balance between human development and environmental stewardship, serving as a reminder of the interconnectedness between water management, climate adaptation, and renewable energy generation. For enthusiasts in these fields, Newton Falls Lower is a compelling example of how historical structures can adapt to meet the challenges of a changing climate while continuing to provide essential services to local communities.

Year Completed

1927

Dam Length

350

Dam Height

25

River Or Stream

Oswegatchie River

Primary Dam Type

Concrete

Surface Area

9

Drainage Area

172

Nid Storage

115

Outlet Gates

Slide (sluice gate) - 2

Hazard Potential

Low

Foundations

Rock

Nid Height

25
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.