| Blue Ridge Dam | |
|---|---|
 Blue Ridge Dam in the 1940s |
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| Official name | Blue Ridge Dam |
| Location | Fannin County, Georgia, USA |
| Coordinates | 34°52′57″N 84°16′48″W / 34.8825°N 84.28°WCoordinates: 34°52′57″N 84°16′48″W / 34.8825°N 84.28°W |
| Construction began | 1925 |
| Opening date | July 31, 1931 |
| Dam and spillways | |
| Height | 167 feet (51 m) |
| Length | 1,000 feet (300 m) |
| Impounds | Toccoa River |
| Reservoir | |
| Creates | Blue Ridge Lake |
Blue Ridge Dam is a hydroelectric dam on the Toccoa River in Fannin County, in the U.S. state of Georgia. It is the uppermost of four dams on the Toccoa/Ocoee River owned and operated by the Tennessee Valley Authority. The dam impounds the 3,300-acre (1,300 ha) Blue Ridge Lake on the southwestern fringe of the Blue Ridge Mountains.[1]
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Location [link]
Blue Ridge Dam is located 51 miles (82 km) upstream from the mouth of the Toccoa/Ocoee River, near the point where the states of Georgia, Tennessee, and North Carolina meet. The Toccoa River winds its way northwestward from the dam, crossing into Tennessee (where it becomes the Ocoee River) roughly 10 miles (16 km) downstream en route to the Ocoee dams on the lower part of the river. Blue Ridge Dam is 23 miles (37 km) upstream from Ocoee Dam No. 3. The Chattahoochee National Forest surrounds Blue Ridge Dam and its reservoir, and the city of Blue Ridge, Georgia is located a few miles west of the dam. U.S. Route 76 crosses a bridge just downstream from Blue Ridge Dam.
Capacity [link]
Blue Ridge Dam is a hydraulic earth-fill type dam 167 feet (51 m) high and 1,000 feet (300 m) long, and has a generating capacity of 22 megawatts.[2] The dam's gate-controlled saddle spillway— which is separated from the main dam by a small hill— can discharge up to 55,000 cubic feet (1,600 m3) of water per second.[1][3] The dam's powerhouse utilizes a 192-foot (59 m) concrete intake tower, and a 14-foot (4.3 m)-diameter steel penstock 1,050 feet (320 m) long that conveys water from the tower to the primary turbine. A 180-foot (55 m) surge tank relieves pressure brought about by rapid gate closures.[4][5]
Blue Ridge Lake has approximately 60 miles (97 km) of shoreline and a flood storage capacity of 68,550 acre feet (84,560,000 m3).[1][2] The reservoir's levels fluctuate by about 20 feet (6.1 m) in a typical year. Seasonal releases from the dam create Class I and Class II rapids on the Toccoa River for several miles downstream.[2]
History [link]
Blue Ridge Dam was built by the Toccoa Electric Power Company, a subsidiary of the Tennessee Electric Power Company (TEPCO), which operated several hydroelectric plants in nearby Tennessee, including Ocoee Dam No. 1 and Ocoee Dam No. 2. Construction began in 1925, and the dam went into operation July 1, 1931. At the time of its completion, the dam had a generating capacity of 20 megawatts and was the most modern power dam in the TEPCO system, requiring a staff of just six employees.[4][5] Subsequent upgrades have increased the dams generating capacity to 22 megawatts.[5]
With the passage of the TVA Act in 1933, the Tennessee Valley Authority was given oversight of the Tennessee River watershed (which included the Toccoa River). TEPCO challenged the constitutionality of the TVA Act in federal court, but the U.S. Supreme Court upheld the law in 1939, and TEPCO was forced to sell its assets to TVA for $78 million in August of that year.[6] This sum included $5 million for Blue Ridge Dam.[1]
Soon after the dam began operations in 1931, its penstock partially collapsed. To prevent this from happening again, TVA has severely lowered the water level in the reservoir when it conducts periodic dam inspections (approximately once every five years), which require dewatering of the penstock. A project was initiated in 2010 to repair the penstock, stabilize the intake tower base, and repair and stabilize the upstream and downstream faces of the dam, thus eliminating the future need for severe reservoir drawdowns.[5]
References [link]
- ^ a b c d Tennessee Valley Authority, Design of TVA Projects Volume 3: Mechanical Design of Hydro Plants, Technical Report No. 24 (Washington, D.C.: Tennessee Valley Authority, 1952), pp. 302-304.
- ^ a b c Tennessee Valley Authority, Blue Ridge Reservoir. Retrieved: 23 January 2009.
- ^ Tennessee Valley Authority, The Nickajack Project: A Report on the Planning, Design, Construction, Initial Operations, and Costs, Technical Report No. 16 (Knoxville, Tenn.: Tennessee Valley Authority, 1972), pp. 10-11.
- ^ a b Tennessee Valley Authority, Mountain Reservoirs Land Management Plan — Chapter 3. p. 154. Retrieved: 23 January 2009. PDF.
- ^ a b c d Tennessee Valley Authority, Final Environmental Assessment Blue Ridge Dam Rehabilitation Project, December 2009
- ^ Timothy Ezzell, "Jo Conn Guild." Tennessee Encyclopedia of History and Culture, 2002. Retrieved: 23 January 2009.
External links [link]
- Blue Ridge Reservoir — official TVA site
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https://wn.com/Blue_Ridge_Dam
Blue Ridge
Blue Ridge may refer to any of the following:
Places
In the United States:
In Canada:
Other
Blue Ridge, Texas
Blue Ridge is a city in Collin County, Texas, United States. The population was 822 at the 2010 census.
Geography
Blue Ridge is located at 33°17′57″N 96°24′6″W / 33.29917°N 96.40167°W (33.299206, -96.401616).
According to the United States Census Bureau, the city has a total area of 1.12 square miles (2.9 km2), all of it land.
Demographics
As of the census of 2010, there were 822 people, 284 households, and 210 families residing in the city. The population density was 733.9 people per square mile (283.4/km²). There were 323 housing units at an average density of 288.4 per square mile (111.4/km²). The racial makeup of the city was 92.60% White, 0.4% African American, 0.7% Native American, 2.8% from other races, and 3.4% from two or more races. Hispanic or Latino of any race were 13.1% of the population.
There were 284 households out of which 39.8% had children under the age of 18 living with them, 54.2% were married couples living together, 15.5% had a female householder with no husband present, and 26.1% were non-families. 22.2% of all households were made up of individuals and 21.5% had someone living alone who was 65 years of age or older. The average household size was 2.89 and the average family size was 3.38.
Blue Ridge (album)
Blue Ridge is the sixth studio album (eighth total album) released by the singer/songwriter Jonathan Edwards featuring the Bluegrass band, The Seldom Scene.
Track listing
Personnel
with
Podcasts:
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by Avail
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by Annuals
Blue Ridge
by: Availyes i, yes i'm worried that they're lies yes i, yes i'm sorry that i tried but i lay it down too deep sometimes for too long up for a moment then that moment's gone and i pray that you know i'd bleed for a home i got worried but it won't be long so long i took it got me down but i took it stayed out stayed out too late for trust don't feel sorry i'm not worried image offset prize is neglect