East Norfolk Reservoir Report

Last Updated: December 19, 2025

East Norfolk is a privately owned hydroelectric dam located in Norfolk, New York, along the Raquette River.


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Summary

The dam, completed in 1928, stands at 16 feet high and stretches 278 feet in length, with a storage capacity of 360 acre-feet. The dam serves as a gravity structure with a multi-arch core type and sits on a rock foundation, contributing to its structural integrity.

With a drainage area of 1063 square miles and a maximum discharge capacity of 10360 cubic feet per second, East Norfolk plays a crucial role in regulating water flow and providing hydroelectric power to the region. The dam's spillway is uncontrolled and spans 195 feet in width, while its hazard potential is classified as high, with a moderate risk assessment rating of 3.

Although not state-regulated, East Norfolk undergoes regular inspections by the Federal Energy Regulatory Commission, ensuring its operational safety and compliance with guidelines. The dam's location within the St. Lawrence County of New York makes it a key component in managing water resources and mitigating climate-related risks in the area. For water resource and climate enthusiasts, East Norfolk represents a significant infrastructure contributing to sustainable energy production and water management practices in the region.

Year Completed

1928

Dam Length

278

Dam Height

16

River Or Stream

Raquette River

Primary Dam Type

Gravity

Surface Area

135

Drainage Area

1063

Nid Storage

360

Hazard Potential

High

Foundations

Rock

Nid Height

16
       
Seasonal Comparison

Weather Forecast

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.