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Fontana Dam is a hydroelectric dam on the Little Tennessee River in Swain and Graham counties, North Carolina, United States. The dam is operated by the Tennessee Valley Authority, which built the dam in the early 1940s to satisfy the skyrocketing electricity demands in the Tennessee Valley to support the aluminum industry at the height of World War II; it also provided electricity to a formerly rural area. At 480 feet (150 m) high, Fontana is the tallest dam in the Eastern United States; at the time of its construction, it was the fourth-tallest dam in the world. The dam and associated infrastructure was listed on the National Register of Historic Places in 2017. The dam impounds the 10,230-acre (4,140 ha) Fontana Lake, which spreads across a scenic stretch of the Little Tennessee along the southwestern boundary of the Great Smoky Mountains National Park. The Appalachian Trail crosses the top of the dam. Fontana is named for the now-inundated town of Fontana, a former lumber and copper-mining hub once located at the mouth of Eagle Creek. The town's name was derived from the Italian word for "fountain." (en) Le barrage de Fontana (anglais : Fontana Dam) est un barrage hydroélectrique sur la Little Tennessee dans les comtés de Swain et Graham en Caroline du Nord, aux États-Unis. Il est nommé d'après la ville de Fontana qui a été inondée pour sa construction, créant ainsi le lac Fontana. Le barrage a été construit au début des années 1940 pour satisfaire les besoins d'électricité dans la vallée du Tennessee pour soutenir l'industrie de l'aluminium au plus fort de la Seconde Guerre mondiale. Il est exploité par la Tennessee Valley Authority Avec ses 150 m de hauteur, le barrage de Fontana est le plus haut de l'est des États-Unis ; au moment de sa construction, c'était le quatrième plus haut barrage du monde. Le Sentier des Appalaches traverse le sommet du barrage. Le barrage crée le lac réservoir Fontana de 4 140 hectares, qui s'étend sur une étendue pittoresque du Little Tennessee, le long de la limite sud-ouest du parc national des Great Smoky Mountains. (fr) ГЕС Фонтана — гідроелектростанція у штаті Північна Кароліна (Сполучені Штати Америки). Знаходячись перед ГЕС Cheoah, становить верхній ступінь каскаду на річці , лівій притоці Теннессі (дренує Велику долину у Південних Аппалачах та впадає ліворуч до Огайо, котра в свою чергу є лівою притокою Міссісіпі). В межах проекту річку перекрили бетонною гравітаційною греблею висотою 146 метрів (від підошви фундаменту, висота від тальвегу 141 метр) та довжиною 721 метр, яка потребувала 2725 тис. м3 матеріалу. Вона утримує витягнуте по долині річки на 47 км водосховище з площею поверхні 41,6 км2 та об'ємом 1915 млн м3 (в тому числі 635 млн м3 можуть використовуватись для протиповеневих заходів). Пригреблевий машинний зал обладнаний трьома турбінами типу Френсіс загальною потужністю 304 МВт, які використовують напір у 100 метрів. (uk) |
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Fontana Dam (en) |
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| rdfs:comment |
Fontana Dam is a hydroelectric dam on the Little Tennessee River in Swain and Graham counties, North Carolina, United States. The dam is operated by the Tennessee Valley Authority, which built the dam in the early 1940s to satisfy the skyrocketing electricity demands in the Tennessee Valley to support the aluminum industry at the height of World War II; it also provided electricity to a formerly rural area. (en) Le barrage de Fontana (anglais : Fontana Dam) est un barrage hydroélectrique sur la Little Tennessee dans les comtés de Swain et Graham en Caroline du Nord, aux États-Unis. Il est nommé d'après la ville de Fontana qui a été inondée pour sa construction, créant ainsi le lac Fontana. Le barrage a été construit au début des années 1940 pour satisfaire les besoins d'électricité dans la vallée du Tennessee pour soutenir l'industrie de l'aluminium au plus fort de la Seconde Guerre mondiale. Il est exploité par la Tennessee Valley Authority Le Sentier des Appalaches traverse le sommet du barrage. (fr) ГЕС Фонтана — гідроелектростанція у штаті Північна Кароліна (Сполучені Штати Америки). Знаходячись перед ГЕС Cheoah, становить верхній ступінь каскаду на річці , лівій притоці Теннессі (дренує Велику долину у Південних Аппалачах та впадає ліворуч до Огайо, котра в свою чергу є лівою притокою Міссісіпі). Пригреблевий машинний зал обладнаний трьома турбінами типу Френсіс загальною потужністю 304 МВт, які використовують напір у 100 метрів. (uk) |
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Fontana Dam (en) Barrage de Fontana (fr) ГЕС Фонтана (uk) |
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Fontana Dam (en) |
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