Jocassee Dam (often called Lake Jocassee Dam) is an embankment dam on the Keowee River, straddling the border of Pickens and Oconee counties in South Carolina in the United States. The dam forms Lake Jocassee, which is fed by the Toxaway, Thompson, Horsepasture and Whitewater Rivers, and serves primarily for hydroelectric power generation and flood control. The dam and reservoir are part of the Keowee-Toxaway Hydroelectric Project, owned and operated by Duke Energy.[4][5]
Completed in 1973, the dam is a zoned earth and rock fill structure, standing 385 feet (117 m) high with a crest length of 1,800 feet (550 m). At full pool, the reservoir has a storage capacity of 1,185,000 acre-feet (1.462×109 m3),[2] encompassing 75 miles (121 km) of shoreline and 7,500 acres (3,000 ha). Floodwater is released through a spillway controlled by two 40-by-32-foot (12.2 m × 9.8 m) gates, with a capacity of 45,700 cubic feet per second (1,290 m3/s).[3]
The dam supports a 710 megawatts (950,000 hp) hydroelectric station, generating power from four turbines. Two of the turbines were installed in 1973, while the third and fourth units came online in 1975. The power station functions as a pumped-storage operation designed to provide peaking power, and generates an average of 811 million kilowatt-hours (2.92×109 MJ) per year.[1] The dam is shown under construction in the 1972 thriller film Deliverance.
^ abcdefg"Lake Jocassee and Jocassee Pumped Storage Facility". The Keowee-Toxaway Project. Duke Energy. Archived from the original on 2014-10-16. Retrieved 2012-08-20.
^ ab"Special Topics" (PDF). South Carolina Water Assessment. South Carolina Department of Natural Resources. Retrieved 2012-08-20.
^ ab"Oconee Nuclear Station ISFSI Safety Analysis Report" (PDF). United States Nuclear Regulatory Commission. 2000-12-31. Retrieved 2012-08-20.
^"Keowee-Toxaway Hydroelectric Project Description". Duke Energy. Archived from the original on 2014-10-16. Retrieved 2012-08-20.
^"Jocassee - Duke Energy". www.duke-energy.com. Archived from the original on 2007-10-31.
JocasseeDam (often called Lake JocasseeDam) is an embankment dam on the Keowee River, straddling the border of Pickens and Oconee counties in South Carolina...
that flow into it, keeping its waters cool and clear year-round. The JocasseeDam, which forms the lake, is 385 feet (117 m) high and 1,750 feet (530 m)...
beneath the waters of Lake Jocassee, a reservoir created by Lake JocasseeDam. The Keowee River flows out of Lake JocasseeDam and into Lake Keowee, a reservoir...
August 2010. Duke Energy estimated the probability of a random failure of JocasseeDam at once every 130,000 years, when floodwaters might cause the loss of...
surface of Lake Jocassee, on the border between Oconee and Pickens counties in South Carolina. The dam shown under construction is JocasseeDam near Salem...
tallest dams in the United States. The main list includes all U.S. dams over 300 feet (91 m) tall, and a second list gives the tallest dams in each state...
Georgia JocasseeDam – Lake Jocassee Keowee Dam Monticello Reservoir – Jenkinsville, South Carolina Pinopolis Dam – Lake Moultrie Richard B. Russell Dam – Richard...
than 50 dams. More than half of these dams are roughly the size of the Jocasseedam. Assuming the NRC's failure rate applies to all of these dams, the chance...
Retrieved 2020-02-02. "Jocassee -Duke Energy". Archived from the original on 2016-10-18. Retrieved 2020-02-01. "John Day Dam - Hydroelectric Project...
first phase, dams were built on the Keowee and Little rivers to create Lake Keowee. A dam blocking the Jocassee River created Lake Jocassee. One estimate...
crosses into South Carolina and enters Lake Jocassee, the reservoir behind Lake JocasseeDam. In Lake Jocassee the Toxaway River is joined by the Whitewater...
Much of the area around Jocassee and the Keowee River was covered by up to 105 meters (344 ft) of water after the JocasseeDam was completed in 1973. In...
The upper Bad Creek Reservoir was created by damming Bad Creek and West Bad Creek while Lake Jocassee serves as the lower reservoir. During periods of...
coal-fired Canadys Station". The Colletonian. Retrieved 2020-02-10. "Hartwell Dam and Lake". U.S. Army Corps of Engineers. Retrieved 2021-07-15. "Download...
Lake Lake Blalock Lake Bowen Lake Brown Lake Greenwood Lake Hartwell Lake Jocassee John D. Long Lake Lake Keowee Lake Marion Monticello Reservoir Lake Moultrie...
corridor stretching some 80 miles along the NC/SC state line. The land, along Jocassee Gorges, was purchased by the state from Duke Energy Corporation in 1999...
Lake Cunningham Lake Greenwood Lake Hartwell (extends into Georgia) Lake Jocassee Lake Keowee Lake Marion (largest lake in South Carolina) Lake Moultrie...
Chesapeake Bay basin in Pennsylvania. They have been collected in Lake Jocassee, Lake Keowee, Picalet River, Broad River, and Lake Murray in South Carolina...
of the Sumter National Forest at the edge of 7,500-acre (3,035 ha) Lake Jocassee. It is located three miles (5 km) off SC 11, the Cherokee Scenic Highway...
Chattooga, Chauga, Cheohee, Tugaloo, Toxaway, Keowee, Oconee, Tamassee, and Jocassee rivers or creeks. The Ranger District is named for Andrew Pickens, commander...
Jackson County, North Carolina, and flows through the Jocassee Gorges area and ends at Lake Jocassee in South Carolina. Some of the land over which the river...
River flooding was great across the state. In addition, the rainfall broke dams, flooded houses, and covered fields. It is rare for tropical cyclone remnants...
Saluda County Saluda River Seneca Ashepoo River Coosawhatchie River Lake Jocassee Lake Keowee Lake Toxaway Santee River Stono River Wando River Edisto Island...
original (pdf) on 1 June 2010. Retrieved 19 December 2009. "Gateways". Jocassee Gorges. South Carolina Department of Natural Resources. Retrieved 20 December...
Area Hickory Top WMA James L. Mason WMA James Ross Wildlife Reservation Jocassee Gorges Keowee WMA Landsford Canal Forest Legacy Area Laurel Fork Heritage...
British; destroyed by Williamson raid August 4, 1776; flooded by Lake Jocassee reservoir; there were several historic towns named "Sugartown" in the Cherokee...
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