When did the Gavins Point Dam get damaged?
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Gavins Point Dam Gavins Point Dam is a hydroelectric dam on the Missouri River in the U.S. states of Nebraska and South Dakota. Built from 1952 to 1957, it impounds Lewis and Clark Lake. The dam is on the Nebraska-South Dakota border, west of Yankton, South Dakota. During the 2011 Missouri River Flood the dam was damaged by debris and a significant portion of rocks were dislodged from its upstream side. The U.S. Army Corps of Engineers soon began repairs to the dam and its spillway gates. Pressure sensors were also installed in concrete portion of the dam.
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2011 Missouri River Flood The 2011 Missouri River floods was a flooding event on the Missouri River in the United States. The flooding was triggered by record snowfall in the Rocky Mountains of Montana and Wyoming along with near-record spring rainfall in central and eastern Montana. All six major dams along the Missouri River released record amounts of water to prevent overflow which led to flooding threatening several towns and cities along the river from Montana to Missouri; in particular Bismarck, North Dakota; Pierre, South Dakota; Dakota Dunes, South Dakota; South Sioux City, Nebraska, Sioux City, Iowa; Omaha, Nebraska; Council Bluffs, Iowa; Kansas City, Missouri; Jefferson City, Missouri, as well as putting many smaller towns at risk. According to the National Weather Service, in the second half of the month of May 2011, almost a year's worth of rain fell over the upper Missouri River basin. Extremely heavy rainfall in conjunction with an estimated 212 percent of normal snowpack in the Rocky Mountains contributed to this flooding event.
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Hantangang Dam The Hantangang Dam is a gravity dam currently under construction on the Hantan River in Yeoncheon County, Gyeonggi Province, South Korea. Construction on the dam began in 2007 and it is expected to be completed in mid-2015. The primary purpose of the dam will be flood control and it was proposed in 1998 after a series of deadly floods in the late 1990s. These floods killed 128 people, displaced over 31,000 and caused about US$900 million in property damage. Initially designed as a multi-purpose project, the design was changed solely to flood control in 2006 due to the concerns of residents upstream. It is being implemented by Korea Water Resources Corporation (K-water).
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South Holston Dam South Holston Dam is a hydroelectric and flood control dam on the South Fork Holston River in Sullivan County, in the U.S. state of Tennessee. It is the uppermost of three dams on the South Fork Holston owned and operated by the Tennessee Valley Authority, which built the dam in the 1940s as part of efforts to control flooding in the Tennessee River watershed. On October 21, 1950 the valve gate closed and water began backing up to create South Holston Reservoir. Work began on the dam in December 1941, but in November 1942, the War Production Board requested that the operation be suspended because of a shortage of critical materials. Work did not resume until July 1, 1947. The dam now impounds the South Holston Lake of 7550 acre , which extends northeastward across the Tennessee-Virginia state line.
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Deer Creek Dam and Reservoir The Deer Creek Dam and Reservoir hydroelectric facilities are on the Provo River in western Wasatch County, about 16 mi northeast of Provo, Utah. The dam is a zoned earthfill structure 235 ft high with a crest length of 1304 ft . The dam contains 2,810,000 cubic yards (2,150,000 m³) of material and forms a reservoir of 152,570 acre.foot capacity. Construction began in May 1938 and was completed in 1941. The reservoir supplies water for agricultural, municipal and industrial use. Recreational activities on and around the reservoir include boating, fishing, camping, swimming and water skiing.
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Xingó Dam The Xingó Dam is a concrete face rock-fill dam on the São Francisco River on the border of Alagoas and Sergipe, near Piranhas, Brazil. The dam was built for navigation, water supply and hydroelectric power generation as it supports a 3162 MW power station. It was constructed between 1987 and 1994 and the last of its generators was commissioned in 1997. In Portuguese, the dam is called the Usina Hidrelétrica de Xingó.
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Klipkopjes Dam Klipkopjes Dam is an earth-fill type dam located on the White River, near the town of White River, Mpumalanga, South Africa. It was established in 1960 and its primary purpose is to serve for irrigation. The hazard potential of the dam has been ranked high (3).
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Da Gama Dam Da Gama Dam, is an earthfill/gravity-type dam on the Witwaters River, near White River, Mpumalanga, South Africa. It was established in 1971 and its main purpose is for irrigation. Its hazard potential has been ranked to be high.
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Castillo de Bellver oil spill The MT "Castillo de Bellver" oil spill began on 6 August 1983, when the Spanish tanker caught fire off Saldanha Bay, approximately 70 miles northwest of Cape Town, South Africa. It was carrying 250,000 tonnes (300,000 cubic metres) of light crude oil, and was traveling through an environmentally sensitive area known for its seabird rookeries and important commercial fishing grounds. The burning vessel was abandoned and broke apart after drifting offshore. The stern capsized and sunk and the bow was sunk using explosives. A total of 145,000-170,000 tonnes (176,000-210,000 cubic metres) of oil entered the sea. Onshore impacts were considered negligible as the slick traveled seaward. The only visible impact was the oiling of 1,500 gannets that were on a nearby island.
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Oroville Dam Oroville Dam is an earthfill embankment dam on the Feather River east of the city of Oroville, California, in the Sierra Nevada foothills east of the Sacramento Valley. At 770 feet (235 m) high, it is the tallest dam in the U.S. and serves mainly for water supply, hydroelectricity generation and flood control. The dam impounds Lake Oroville, the second largest man-made lake in the state of California, capable of storing more than 3.5 million acre-feet (4.4 km).
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1947 Thames flood The 1947 Thames flood was worst overall 20th century flood of the River Thames, affecting much of the Thames Valley as well as elsewhere in England during the middle of March 1947 after a severe winter.
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Villa Park Dam Villa Park Dam is an embankment dam on Santiago Creek in Orange County, California in the United States. Along with the upstream Santiago Dam, the dam serves primarily for flood control for the cities of Villa Park, Orange, Tustin and Santa Ana and also regulates the inflow of Santiago Creek into the Santa Ana River. Construction was completed in 1963, and the dam is owned by the County of Orange.
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Link River Dam The Link River Dam is a concrete gravity dam on the Link River in the city of Klamath Falls, Oregon. It was built in 1921 by the California Oregon Power Company (COPCO), the predecessor of PacifiCorp, which continues to operate the dam. The dam is owned by the U.S. Bureau of Reclamation.
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Mississippi flood of 1973 The Mississippi flood of 1973 occurred between March and May 1973 on the lower Mississippi River. The flooding was the third most severe along the U.S.' Mississippi River during the 20th century.
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Normandy Archaeological Project The Normandy Archaeological Project was a rescue excavation designed to preserve the archaeological history of the area before it became submerged by the construction of the Normandy Reservoir Dam through funding from the Tennessee Valley Authority. After the construction of the dam, historic information about that area could not be accessed, so prior to the construction of the dam, as much research as possible had to be done on the area. This salvage effort was conducted in the Duck River Valley area, of middle Tennessee from March 1971 until the summer of 1975, prior to the completion of the dam in 1976. The fieldwork was done mainly by researchers from the University of Tennessee, Knoxville, under contract to the Tennessee Valley Authority Contract and National Park. The dam creating the Normandy Reservoir was built on the Duck River at mile marker 248.6 in Coffee and Bedford County, Tennessee, named after the town of Normandy, Tennessee. The two nearest cities are Manchester and Tullahoma.
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Krugerdrift Dam Krugerdrift Dam is a combined gravity & arch type dam located on the Modder River, near Bloemfontein, Free State, South Africa. It was established in 1970 and it serves mainly for irrigation purposes. The hazard potential of the dam has been ranked high (3).
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Cuddebackville Dam The Cuddebackville Dam was a concrete dam on the Neversink River in Deerpark, Orange County, New York near the town of Cuddebackville, removed in October, 2004 to benefit aquatic life. It was the first dam removed in New York State for environmental reasons.
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1967 Koynanagar earthquake The 1967 Koynanagar earthquake occurred near Koynanagar town in Maharashtra, India on 11 December local time. The magnitude 6.6 shock hit with a maximum Mercalli intensity of VIII ("Severe"). It occurred near the site of Koyna dam, raising questions about induced seismicity, and claimed at least 177 lives and injured over 2,200.
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2005 levee failures in Greater New Orleans On August 29, 2005, there were over 50 failures of the levees and flood walls protecting New Orleans, Louisiana, and its suburbs following passage of Hurricane Katrina and landfall in Mississippi. The levee and flood wall failures caused flooding in 80% of New Orleans and all of St. Bernard Parish. Tens of billions of gallons of water spilled into vast areas of New Orleans, flooding over 100,000 homes and businesses. Responsibility for the design and construction of the levee system belongs to the United States Army Corps of Engineers; the responsibility of maintenance belongs to the local levee boards. The Corps hands components of the system over to the local levee boards upon completion. When Katrina struck in 2005, the project was between 60–90% complete. Four major investigations were conducted by civil engineers and other experts in an attempt to identify the underlying reasons for the failure of the federal flood protection system. All concur that the primary cause of the flooding was inadequate design and construction by the Corps of Engineers.
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Buffeljags Dam Buffeljags Dam is a gravity/earth-fill type dam on the Buffeljags River, near Swellendam, Western Cape, South Africa. It was established in 1967 and renovated in 1983. Its primary purpose today is for irrigation use.
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1971 San Francisco Bay oil spill The 1971 San Francisco Bay oil spill occurred when two Standard Oil tankers, the "Arizona Standard" and the "Oregon Standard", collided on January 19, 1971, in the San Francisco Bay. The resulting 800,000 gallon spill, the largest in Bay Area history, threatened sensitive natural habitats both inside and outside the bay, including the Bolinas Lagoon, and contributed to the growth of activism against pollution, after thousands of bay area residents volunteered to clean up beaches and rescue oil soaked birds. A number of environmental organizations had their origins in the spill cleanup. Standard Oil spent more than $1 million in the clean-up.
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Fort Gibson Dam The Fort Gibson Dam is a gravity dam on the Grand (Neosho) River in Oklahoma, 5.4 mi north of Fort Gibson. The purpose of the dam is flood control and hydroelectric power production. It was authorized by the Flood Control Act of 1941 and construction began the next year. During World War II construction was suspended and it recommenced in May 1946. In June 1949, the river was closed and the entire project was complete in September 1953 with the operation of the last of the power plant's four generators. The dam and power rights originally belonged to the Grand River Dam Authority but were seized by the U.S. Army Corps of Engineers in 1946.