Jocassee Dam, South Carolina, USA

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Quick Facts About Jocassee Dam

Location: Pickens, South Carolina
Coordinates: 34.9606, -82.9183
River: Keowee River
Primary Purpose: Hydroelectric
Type: Rockfill
Commissioned: 1973
Dam Height: 385 ft (117 m)
Dam Length: 1,800 ft (549 m)
Dam Capacity: 1,160,298 acre-ft (1,431,204 Ml)
Condition Assessment: Satisfactory

Jocassee Dam Map

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Jocassee Dam Information

Jocassee Dam is a rockfill dam located about 20 miles from Clemson, Sc, Pickens, South Carolina.

The dam, which is on the Keowee River, was primarily built for Hydroelectric purposes, but also serves for benefits.

The dam was designed by and commissioned in 1973 and is currently owned by Duke Energy.

Jocassee Dam Structure

The Jocassee Dam is approximately 1,800 feet (549 m) long, 385 feet (117 m) high and has a structural volume of cubic yards (0 cubic metres).

Jocassee Dam Storage Capacity & Surface Area

The reservoir has a normal storage capacity of 1,160,298 acre-ft (1,431,204 Ml) and maximum capacity of 1,160,298 acre-ft (1,431,204 Ml).

The surface area of the reservoir is 7,565 acres (3,061 ha) and the total catchment area is 147 square miles (381 square kilometres).

Jocassee Dam Spillway

According to the latest available data, the Jocassee Dam does not have any spillways.

Jocassee Dam Compared to Four Famous American Dams

Jocassee Dam
Pickens, South Carolina
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) 385 730 550 357 216
Length (Ft) 1,800 1,244 5,673 6,920 1,565
Storage Volume (acre-ft) 1,160,298 30,237,000 9,562,000 3,540,000 29,875,000
Drainage Area (sq miles) 147 167,800 74,100 3,611 108,355

Jocassee Dam Weather

Current Conditions at Jocassee Dam

Failed to fetch current weather data.

7-Day Forecast for Jocassee Dam

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Jocassee Dam Frequently Asked Questions

In which state is the Jocassee Dam?

Jocassee Dam is in South Carolina.

In which county is the Jocassee Dam?

Jocassee Dam is in Pickens County.

How high is the Jocassee Dam?

Jocassee Dam is 385 feet high.

How long is the Jocassee Dam?

Jocassee Dam is 1,800 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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