Ocoee No. 1 Dam Reservoir Report

Last Updated: December 5, 2025

Ocoee No.


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Summary

1 Dam, also known as Parksville Lake, is a concrete dam located on the Ocoee River in Polk, Tennessee. Built in 1911 by TN Electric Power, this dam stands at a height of 127 feet and has a structural height of 135 feet. It serves multiple purposes, including flood risk reduction, hydroelectric power generation, and recreation, with a normal storage capacity of 79,320 acre-feet.

Managed by the Tennessee Valley Authority (TVA), Ocoee No. 1 Dam has a high hazard potential due to its proximity to populated areas. The dam has undergone several modifications over the years, with the most recent in 1975 to enhance its structural integrity. Despite its age, the dam is regularly inspected by TVA to ensure its safety and reliability, with the last inspection conducted in March 2021.

With a drainage area of 595 square miles and a maximum discharge capacity of 26,620 cubic feet per second, Ocoee No. 1 Dam plays a crucial role in managing water resources in the region. Its strategic location and design make it a significant asset for flood control, energy production, and recreational activities along the Ocoee River.

Years Modified

1914 - Mechanical, 1930 - Mechanical, 1937 - Mechanical, 1975 - Structural

Year Completed

1911

Dam Length

840

Dam Height

127

River Or Stream

OCOEE RIVER

Primary Dam Type

Concrete

Surface Area

1620

Hydraulic Height

117

Drainage Area

595

Nid Storage

79320

Structural Height

135

Outlet Gates

Other Controlled, Slide (sluice gate)

Hazard Potential

High

Foundations

Rock

Nid Height

135
       
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.