East Fork (Tannasee Creek) - Dam Reservoir Report

Last Updated: December 5, 2025

East Fork (Tannasee Creek) Dam, Gated Spillway, and 2 Fuseplugs in North Carolina serve as a crucial hydroelectric facility owned by a public utility.


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Summary

Constructed in 1955, this earth dam stands at a height of 19 feet and has a storage capacity of 1340 acre-feet, providing essential water resources to the region. The dam's controlled spillway and high hazard potential make it a key structure for managing water flow and ensuring public safety.

Located in Tuckasegee, NC, this dam on East Fork Tuckasegee River is regulated by the Federal Energy Regulatory Commission, with regular inspections to maintain its structural integrity. The presence of a gated spillway and two fuseplugs further enhances the dam's safety features, allowing for controlled release of water during periods of high flow. With a maximum discharge capacity of 70,200 cubic feet per second, this dam plays a critical role in flood control and hydroelectric power generation in the area.

Despite its age, East Fork Dam continues to meet regulatory standards and is equipped with an Emergency Action Plan (EAP) to address any potential risks. With a very high risk assessment rating, this dam underscores the importance of proactive risk management measures to safeguard the surrounding community and the environment. As a significant infrastructure for water resource management and renewable energy production, East Fork Dam stands as a testament to the ongoing efforts to balance ecological sustainability with human development in the face of climate change challenges.

Year Completed

1955

Dam Length

165

Dam Height

19

River Or Stream

East Fork Tuckasegee

Primary Dam Type

Earth

Surface Area

40

Hydraulic Height

19

Nid Storage

1340

Structural Height

19

Hazard Potential

High

Foundations

Rock

Nid Height

19
       
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.