Ocoee No. 3 Dam, Tennessee, USA

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Quick Facts About Ocoee No. 3 Dam

Location: Polk, Tennessee
Coordinates: 35.040676, -84.466807
River: Ocoee River
Primary Purpose: Flood Risk Reduction
Type: Concrete Gravity
Commissioned: 1942
Dam Height: 83 ft (25 m)
Dam Length: 612 ft (187 m)
Dam Capacity: 7,932 acre-ft (9,784 Ml)
Condition Assessment: Not Available

Ocoee No. 3 Dam Map

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Ocoee No. 3 Dam Information

Ocoee No. 3 Dam is a concrete gravity dam located about 44 miles from Calhoun, Polk, Tennessee.

The dam, which is on the Ocoee River, was primarily built for Flood Risk Reduction purposes, but also serves for Recreation and Hydroelectric benefits.

The dam was designed by TVA and commissioned in 1942 and is currently owned by TVA.

Ocoee No. 3 Dam Structure

The Ocoee No. 3 Dam is approximately 612 feet (187 m) long, 83 feet (25 m) high and has a structural volume of 82,500 cubic yards (63,076 cubic metres).

Ocoee No. 3 Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 3,966 acre-ft (4,892 Ml) and maximum capacity of 7,932 acre-ft (9,784 Ml).

The surface area of the reservoir is 600 acres (243 ha) and the total catchment area is 492 square miles (1,274 square kilometres).

Ocoee No. 3 Dam Spillway

The dam has a 260 feet (79 m) wide controlled spillway with a maximum discharge capacity of 134000 cubic feet per second (3794 cubic metres per second).

Ocoee No. 3 Dam Compared to Four Famous American Dams

Ocoee No. 3 Dam
Polk, Tennessee
Hoover Dam
Clark County, Nevada
Grand Coulee Dam
Okanogan County, Washington
Theodore Roosevelt Dam
Maricopa County, Arizona
Glen Canyon Dam
Coconino County, Arizona
Height (ft) 83 730 550 357 216
Length (Ft) 612 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 7,932 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 492 167,800 74,100 3,611 108,355

Ocoee No. 3 Dam Weather

Current Conditions at Ocoee No. 3 Dam

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7-Day Forecast for Ocoee No. 3 Dam

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Ocoee No. 3 Dam Frequently Asked Questions

In which state is the Ocoee No. 3 Dam?

Ocoee No. 3 Dam is in Tennessee.

In which county is the Ocoee No. 3 Dam?

Ocoee No. 3 Dam is in Polk County.

How high is the Ocoee No. 3 Dam?

Ocoee No. 3 Dam is 83 feet high.

How long is the Ocoee No. 3 Dam?

Ocoee No. 3 Dam is 612 feet long.

Condition Assessment Classification

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.

Source: National Inventory of Dams

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