Nantahala - Gated Spillway And 2 Fuseplugs Reservoir Report

Last Updated: December 13, 2025

Located in Macon, North Carolina, the Nantahala - Gated Spillway and 2 Fuseplugs structure is a key component of the Nantahala River hydroelectric system.


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Summary

Built in 1942, this gravity dam stands at a height of 45 feet and has a storage capacity of 126,000 acre-feet. With a spillway width of 159 feet, it is designed for controlled water release to manage high discharge levels.

Owned by a public utility, this dam is inspected by the Federal Energy Regulatory Commission to ensure its safe operation. The hazard potential is rated as high, with a very high risk assessment score. Although the condition assessment is not available, emergency action plans are in place to address any potential risks or emergencies. The structure plays a crucial role in providing hydroelectric power to the region.

Situated in a picturesque location, the Nantahala - Gated Spillway and 2 Fuseplugs structure not only serves as a vital infrastructure for water resource management but also contributes to the beauty of the surrounding landscape. With a rich history dating back to its completion in 1942, this gravity dam continues to play a significant role in providing renewable energy while ensuring the safety of the local community and the environment.

Year Completed

1942

Dam Length

173.5

Dam Height

45

River Or Stream

Nantahala River

Primary Dam Type

Gravity

Surface Area

1605

Hydraulic Height

45

Nid Storage

126000

Structural Height

45

Hazard Potential

High

Foundations

Rock

Nid Height

45
       
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.