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Kelly Barnes Dam
Kelly Barnes Dam was an earthen embankment dam in Stephens County, Georgia, just outside the city of Toccoa, Georgia, Toccoa. Heavy rainfall caused it to collapse on November 6, 1977, and the resulting flood killed 39 people and caused $2.8 million in damage. The dam was never rebuilt. A memorial to the dead stands downstream, by Toccoa Falls on the campus of Toccoa Falls College. History In 1899, a rock crib dam was built by E. P. Simpson to create a reservoir for a small hydroelectric power plant that began operating that same year. The plant, now a historical site on the Toccoa Falls College campus called the Old Toccoa Falls Power Plant, produced 200 kW for the town of Toccoa, Georgia. The power plant was transferred in 1933 to the Toccoa Falls College, Toccoa Falls Institute, which decided to develop a more stable electric power source and built an earthen embankment dam over the original rock crib dam between 1939 and 1940. After World War II, the dam was again raised ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dam Failure
A dam failure or dam burst is a catastrophic type of structural failure characterized by the sudden, rapid, and uncontrolled release of impounded water or the likelihood of such an uncontrolled release. Between the years 2000 and 2009 more than 200 notable dam failures happened worldwide. A dam is a barrier across flowing water that obstructs, that directs or slows down the flow, often creating a reservoir, lake or impoundments. Most dams have a section called a ''spillway or weir'' over or through which water flows, either intermittently or continuously, and some have hydroelectricity, hydroelectric power generation systems installed. Dams are considered "installations containing dangerous forces" under International humanitarian law due to the massive impact of a possible destruction on the civilian population and the environment. Dam failures are comparatively rare, but can cause immense damage and loss of life when they occur. In 1975 the 1975 Banqiao Dam failure, failure of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gneiss
Gneiss ( ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Gneiss forms at higher temperatures and pressures than schist. Gneiss nearly always shows a banded texture characterized by alternating darker and lighter colored bands and without a distinct cleavage. Gneisses are common in the ancient crust of continental shields. Some of the oldest rocks on Earth are gneisses, such as the Acasta Gneiss. Description Orthogneiss from the Czech Republic In traditional English and North American usage, a gneiss is a coarse-grained metamorphic rock showing compositional banding (gneissic banding) but poorly developed schistosity and indistinct cleavage. In other words, it is a metamorphic rock composed of mineral grains easily seen with the unaided eye, which form obvious compositional layers, but which has only a weak tendency to fracture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johnstown Flood
The Johnstown Flood (locally, the Great Flood of 1889) occurred on Friday, May 31, 1889, after the catastrophic failure of the South Fork Dam, located on the south fork of the Little Conemaugh River, upstream of the town of Johnstown, Pennsylvania, United States. The dam ruptured after several days of extremely heavy rainfall, releasing 14.55 million cubic meters of water. With a volumetric flow rate that temporarily equaled the average flow rate of the Mississippi River,Sid Perkins, "Johnstown Flood matched volume of Mississippi River" ''Science News'', Vol.176 #11, 21 November 2009, accessed 14 October 2012 the flood killed 2,209 people and accounted for $17 million of damage (about $534 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
George Busbee
George Dekle Busbee Sr. (August 7, 1927 – July 16, 2004), was an American politician who served as the 77th Governor of the State of Georgia from 1975 to 1983, and a senior partner at King & Spalding thereafter. Early life Born in Vienna, Georgia, Busbee attended Georgia Military College and Abraham Baldwin Agricultural College before joining the U.S. Navy. After his discharge, he completed his education at the University of Georgia and its School of Law in Athens, where he was a member of the Phi Delta Theta fraternity and the Phi Kappa Literary Society, having procured a bachelor's degree in 1949 and a law degree in 1952. Political life Establishing a law practice in Albany, Busbee served nine terms in the Georgia House of Representatives and was floor leader for Governor Carl Sanders. In 1967, Busbee was one of thirty Democrats in the legislature who voted for the Republican Howard Callaway in the disputed 1966 gubernatorial race, rather than the Democratic nominee Lester ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abutment
An abutment is the substructure at the ends of a bridge span or dam supporting its superstructure. Single-span bridges have abutments at each end which provide vertical and lateral support for the span, as well as acting as retaining walls to resist lateral movement of the earthen fill of the bridge approach. Multi-span bridges require piers to support ends of spans unsupported by abutments. Dam abutments are generally the sides of a valley or gorge, but may be artificial in order to support arch dams such as Kurobe Dam in Japan. The civil engineering term may also refer to the structure supporting one side of an arch, or masonry used to resist the lateral forces of a vault.Pevsner, N. (1970) ''Cornwall''; 2nd ed. Harmondsworth: Penguin; p. 245 The impost or abacus of a column in classical architecture may also serve as an abutment to an arch. The word derives from the verb "abut", meaning to "touch by means of a mutual border". Use in engineering An abutment may be us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Georgia State Route 17
State Route 17 (SR 17) is a state highway that travels northwest–southeast in the east-central and northeastern parts of the U.S. state of Georgia. The highway connects the Savannah metro area to the North Carolina state line, northwest of Hiawassee and runs roughly parallel to the South Carolina state line. Route description From Port Wenthworth to Washington SR 17 begins at an interchange with SR 21 Alternate in Port Wentworth near the junction of SR 21 and SR 30, at the junction of the Jimmy DeLoach Parkway and the Sonny Dixon Interchange. SR 17 travels west on the Jimmy DeLoach Parkway, briefly entering the Savannah city limits, where it crosses over I-95 at exit 106. SR 17 and the Jimmy DeLoach Parkway continue west to Bloomingdale, where it begins a concurrency with US 80/ SR 26 westward and meets the northern terminus of SR 17 Conn. After entering Effingham County, SR 17 departs US 80/SR 26, and c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
House Trailers
A mobile home (also known as a house trailer, park home, trailer, or trailer home) is a prefabricated structure, built in a factory on a permanently attached chassis before being transported to site (either by being towed or on a trailer). Used as permanent homes, or for holiday or temporary accommodation, they are often left permanently or semi-permanently in one place, but can be moved, and may be required to move from time to time for legal reasons. Mobile homes share the same historic origins as travel trailers, but today the two are very different, with travel trailers being used primarily as temporary or vacation homes. Behind the cosmetic work fitted at installation to hide the base, mobile homes have strong trailer frames, axles, wheels, and tow-hitches. History In the United States, this form of housing goes back to the early years of cars and motorized highway travel. It was derived from the travel trailer (often referred to during the early years as "house traile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wea00705 - Flickr - NOAA Photo Library
The Wea were a Miami-Illinois-speaking Native American tribe originally located in western Indiana. Historically, they were described as either being closely related to the Miami Tribe or a sub-tribe of Miami. Today, the descendants of the Wea, along with the Kaskaskia, Piankeshaw, and Peoria, are enrolled in the Peoria Tribe of Indians of Oklahoma, a federally recognized tribe in Oklahoma. Name The name ''Wea'' is used today as the a shortened version of their numerous recorded names. The Wea name for themselves (autonym) in their own language is ''waayaahtanwa'', derived from ''waayaahtanonki'', 'place of the whirlpool', where they were first recorded being seen and where they were living at that time. The many different spellings of the tribe's name include Waiatanwa, Ouaouiatanoukak, Aoiatenon, Aouciatenons, Ochiatenens, Ouatanons, Ouias, Ouiatanon, Wah-we-ah-tung-ong, Warraghtinooks, and Wyatanons. Language The Wea spoke a dialect of Miami-Illinois language, part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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