Mission Dam

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Mission Dam
Mission Dam on the Hiwassee River in Clay County, N.C.jpg
Mission Dam on the Hiwassee River in Clay County, N.C.
Official nameMission Dam
Location Clay County, North Carolina, United States
Coordinates 35°3′52″N83°55′33″W / 35.06444°N 83.92583°W / 35.06444; -83.92583
Opening date1924
Construction cost$500,000
Operator(s) Duke Energy
Dam and spillways
Impounds Hiwassee River
Height50 ft (15 m)
Length397 ft (121 m)

Mission Dam is a dam on the Hiwassee River in Clay County, in the U.S. state of North Carolina. The dam is located between Hiwassee Dam and Chatuge Dam. The city of Andrews, North Carolina built the dam in 1924 at a cost of $500,000 to supply energy. [1] [2] The dam is the oldest on the river (other dams on along the Hiwassee were constructed in the 1940s). Nantahala Power and Light bought the facility in 1929 and upgraded it in 1943. [1] Unlike other dams on the river, it is operated by Duke Energy instead of the Tennessee Valley Authority. [3]

Mission Dam was built as an Ambursen type dam, but in 1999 many of its chambers were filled in due to concrete deterioration. [1] It is 50 feet (15 m) high and 397 feet (121 m) long.

The reservoir is 47 acres. [4] The dam is adjacent to a portage for canoe access downstream and a hiking trail on the path of the former Peavine Railroad which ran nearby.

Location

Mission Dam is located 106 miles (170 km) above the mouth of the Hiwassee River, just upstream of the Cherokee County line.

The town of Hayesville, North Carolina and TVA's Chatuge Dam are located 9 miles and 15 miles upstream, respectively.

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Hiwassee Dam is a hydroelectric dam on the Hiwassee River in Cherokee County, in the U.S. state of North Carolina. It is one of three dams on the river owned and operated by the Tennessee Valley Authority, which built the dam in the late 1930s to bring flood control and electricity to the region. The dam impounds the Hiwassee Lake of 6,000 acres (2,400 ha), and its tailwaters are part of Apalachia Lake. At 307 feet (94 m), Hiwassee Dam is the highest overspill dam in the Eastern United States and third only to Shasta and Grand Coulee dams in the nation. At the time it was completed, it was the highest overspill dam in the world.

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Lake Chatuge is a man-made reservoir in Towns County, Georgia, and Clay County, North Carolina. It was formed by the Tennessee Valley Authority's construction of Chatuge Dam in 1942. The lake is relatively shallow with depths of 30 feet (9.1 m) and reaches 144 feet (44 m) by the dam. In an average year the water level varies 10 feet (3.0 m) from winter to summer to provide seasonal flood storage. Lake Chatuge is the highest major lake in the state of Georgia. It takes up 7,000 acres and is 13 miles (21 km) long.

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The H.F. Lee Energy Complex, formerly the Goldsboro Plant, is an electrical power generating complex operated by Duke Energy. The power complex was originally owned by the Carolina Power & Light Company, which inaugurated a coal-fired power plant in 1951. Two more coal plants were added in 1952 and 1962, and then oil-fueled turbines were added in 1967–71. In 2012 these units were shut down and replaced by four gas-fired units. The Quaker Neck Lake was built as a cooling pond for the coal-fired power stations, and is still used to supply cooling water. It was originally impounded by a low dam on the Neuse River, but in 1998 the dam was removed, while the lake remained contained in an earthen wall. This change allowed fish to migrate further upstream for spawning. Ash ponds near the lake hold toxic coal ash. There are plans to remove and recycle or bury the ash.

References

  1. 1 2 3 "Nantahala Power and Light's Mission Dam". JanandPat.net.
  2. "Mission Dam". The Clay County News. 1929-05-10. p. 16. Retrieved 2024-02-27.
  3. Mission Hydroelectric Project FERC #2619 License Application Volume I (PDF). Duke Energy. 2003.
  4. "Mission P-2619". Hydropower Reform Coalition.