Tallassee Shoals Reservoir Report

Last Updated: December 5, 2025

Tallassee Shoals, also known as Harrison Dam, is a private hydroelectric structure located in Athens, Georgia, along the Middle Oconee River.


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Summary

Built in 1986, this gravity dam stands at a height of 37 feet with a hydraulic height of 45.5 feet, serving as a vital component in the region's water resource management. With a storage capacity of 500 acre-feet, the dam plays a crucial role in regulating water flow, providing hydroelectric power, and supporting various water-related activities.

Managed by the Federal Energy Regulatory Commission, Tallassee Shoals boasts a low hazard potential and a moderate risk assessment rating. Despite not being state-regulated, the dam undergoes inspections every three years to ensure its structural integrity and operational safety. While its primary purpose is hydroelectric power generation, the dam also aids in flood control and water storage, contributing to the overall water management efforts in Jackson County, Georgia.

As a significant feature in the local landscape, Tallassee Shoals represents a balance between harnessing water resources for energy production and maintaining environmental sustainability. Its strategic location and operational efficiency make it a noteworthy structure for water resource and climate enthusiasts interested in the intersection of hydroelectric power, dam management, and water conservation in the region.

Year Completed

1986

Dam Length

550

Dam Height

37

River Or Stream

Middle Oconee River

Primary Dam Type

Gravity

Surface Area

18

Hydraulic Height

45.5

Drainage Area

345

Nid Storage

500

Structural Height

48

Hazard Potential

Low

Foundations

Rock

Nid Height

48
       
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.