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Lake Norfork
Norfork Dam is a large dam in northern Arkansas southeast of Mountain Home. It dams North Fork River and creates Norfork Lake. The top of the dam supports a 2-lane roadway, part of AR 177. History In the late 1930s, before construction of the Norfork Dam had begun, the local economy of Baxter County, Arkansas was deteriorating. The yearly per capita income had fallen to between one-hundred and two-hundred dollars, and in 1940 alone more than six hundred small farms were abandoned. Those who remained looked forward with enthusiasm to any solution that promised relief from their economic problems. Mountain Home, Arkansas, then the largest community, was described as having no prospect for new business and very few paved roads. When construction of the dam finally began in the spring of 1941 it was said that, "before the first shovel of dirt was thrown, or the first tree dozed down, the Mountain Home people knew that a new era had dawned" United States, History of the Corps ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norfork Dam, Arknasas
Norfork is a city in Baxter County, Arkansas, United States. The population was 550 at the 2010 census. Geography Norfork is located at (36.209506, -92.281702). According to the United States Census Bureau, the city has a total area of , of which is land and (11.74%) is water. The White River flows 44 miles from Bull Shoals Dam to its confluence with the North Fork River's tailwater at Norfork. List Of Highways * Arkansas Highway 5 * Arkansas Highway 177 Demographics As of the census of 2000, the population density was . There were 283 housing units at an average density of . The racial makeup of the city was 96.07% White, 0.21% Black or African American, 1.50% Native American, 0.41% Asian, 0.41% from other races, and 1.45% from two or more races. 1.41% of the population were Hispanic or Latino of any race. There were 224 households, out of which 17.0% had children under the age of 18 living with them, 58.5% were married couples living together, 8.5% had a femal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Table Rock Lake
Table Rock Lake is an artificial lake or reservoir in the Ozarks of southwestern Missouri and northwestern Arkansas in the United States. Designed, built and operated by the U.S. Army Corps of Engineers, the lake is impounded by Table Rock Dam (located ), which was constructed from 1954 to 1958 on the White River. The lake is a popular attraction for the city of Branson, Missouri, and the nearby town of Shell Knob, Missouri. There are several commercial marinas along the lake, and Table Rock State Park is located on the east side, both north and south of Table Rock Dam. Downstream from the dam, the Missouri Department of Conservation operates a fish hatchery, which is used to stock trout in Lake Taneycomo, which begins immediately downstream from the Table Rock Dam. The cold water discharged from the dam creates a trout fishing environment in the lake. The lake derives its name from a rock formation resembling a table at the small community of Table Rock, Missouri, on Highw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoir
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam A dam is a barrier that stops or restricts the flow of surface water or underground streams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ozark County, Missouri
Ozark County is a County (United States), county located in the southern portion of the U.S. state of Missouri. As of the 2020 United States census, 2020 census, the population was 8,553. The largest city and county seat is Gainesville, Missouri, Gainesville. The county was organized as Ozark County, named after the Ozarks, Ozark Mountains, on January 29, 1841. It was renamed Decatur County, after Commodore Stephen Decatur, from 1843 to 1845, after which the name Ozark County was restored. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (1.4%) is water. Arkansas is located to the south of Ozark County. Adjacent counties *Douglas County, Missouri, Douglas County (north) *Howell County, Missouri, Howell County (east) *Fulton County, Arkansas (southeast) *Baxter County, Arkansas (south) *Marion County, Arkansas (southwest) *Taney County, Missouri, Taney County (west) Major highways * U.S. Route 160 (Missouri), U.S. Route 160 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reservoir (water)
A reservoir (; from French ''réservoir'' ) is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation. Reservoirs can be created in a number of ways, including controlling a watercourse that drains an existing body of water, interrupting a watercourse to form an embayment within it, through excavation, or building any number of retaining walls or levees. In other contexts, "reservoirs" may refer to storage spaces for various fluids; they may hold liquids or gasses, including hydrocarbons. ''Tank reservoirs'' store these in ground-level, elevated, or buried tanks. Tank reservoirs for water are also called cisterns. Most underground reservoirs are used to store liquids, principally either water or petroleum. Types Dammed valleys Dammed reservoirs are artificial lakes created and controlled by a dam constructed across a valley, and rely on the natural topography to provide most of the basin of the re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buttress Dam
A buttress dam or hollow dam is a dam with a solid, water-tight upstream side that is supported at intervals on the downstream side by a series of buttresses or supports. The dam wall may be straight or curved. Most buttress dams are made of reinforced concrete and are heavy, pushing the dam into the ground. Water pushes against the dam, but the buttresses are inflexible and prevent the dam from falling over. Buttress or hollow gravity dams were originally built to retain water for irrigation or mining in areas of scarce or expensive resources but cheap labour. A buttress dam is a good choice in wide valleys where solid rock is rare. As designs have become more sophisticated, the virtues and weaknesses of buttress dams have become apparent. The Romans were the first to use buttresses to increase the stability of a dam wall. Buttress dams of slab concrete construction became popular in the United States in the early 20th Century with the patented process of Norwegian-American civil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch Dam
An arch dam is a concrete dam that is curved upstream in plan. The arch dam is designed so that the force of the water against it, known as hydrostatic pressure, presses against the arch, causing the arch to straighten slightly and strengthening the structure as it pushes into its foundation or abutments. An arch dam is most suitable for narrow canyons or gorges with steep walls of stable rock to support the structure and stresses. Since they are thinner than any other dam type, they require much less construction material, making them economical and practical in remote areas. Classification In general, arch dams are classified based on the ratio of the base thickness to the structural height (b/h) as: * Thin, for b/h less than 0.2, * Medium-thick, for b/h between 0.2 and 0.3, and * Thick, for b/h ratio over 0.3. Arch dams classified with respect to their structural height are: * Low dams up to , * Medium high dams between , * High dams over . History The developme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravity Dam
A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it. Gravity dams are designed so that each section of the dam is stable and independent of any other dam section. Characteristics Gravity dams generally require stiff rock foundations of high bearing strength (slightly weathered to fresh), although in rare cases, they have been built on soil foundations. The bearing strength of the foundation limits the allowable position of the resultant force, influencing the overall stability. Also, the stiff nature of the gravity dam structure is unforgiving to differential foundation settlement, which can induce cracking of the dam structure. Gravity dams provide some advantages over embankment dams, the main advantage being that they can tolerate minor over-topping flows without damage, as the concre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoover Dam
Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives. It was referred to as Hoover Dam after President Herbert Hoover in bills passed by Congress during its construction; it was named Boulder Dam by the Roosevelt administration. The Hoover Dam name was restored by Congress in 1947. Since about 1900, the Black Canyon and nearby Boulder Canyon had been investigated for their potential to support a dam that would control floods, provide irrigation water and produce hydroelectric power. In 1928, Congress authorized the project. The winning bid to build the dam was submitted by a consortium named Six Companies, Inc., which began ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Coulee Dam
Grand Coulee Dam is a concrete gravity dam on the Columbia River in the U.S. state of Washington, built to produce hydroelectric power and provide irrigation water. Constructed between 1933 and 1942, Grand Coulee originally had two powerhouses. The third powerhouse ("Nat"), completed in 1974 to increase energy production, makes Grand Coulee the largest power station in the United States by nameplate-capacity at 6,809 MW. The proposal to build the dam was the focus of a bitter debate during the 1920s between two groups. One group wanted to irrigate the ancient Grand Coulee with a gravity canal while the other pursued a high dam and pumping scheme. The dam supporters won in 1933, but, although they fully intended otherwise, the initial proposal by the Bureau of Reclamation was for a "low dam" tall which would generate electricity without supporting irrigation. That year, the U.S. Bureau of Reclamation and a consortium of three companies called MWAK (Mason-Walsh-Atkinson Kier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norfork Dam, 2005
Norfork is a city in Baxter County, Arkansas, United States. The population was 550 at the 2010 census. Geography Norfork is located at (36.209506, -92.281702). According to the United States Census Bureau, the city has a total area of , of which is land and (11.74%) is water. The White River flows 44 miles from Bull Shoals Dam to its confluence with the North Fork River's tailwater at Norfork. List Of Highways * Arkansas Highway 5 * Arkansas Highway 177 Demographics As of the census of 2000, the population density was . There were 283 housing units at an average density of . The racial makeup of the city was 96.07% White, 0.21% Black or African American, 1.50% Native American, 0.41% Asian, 0.41% from other races, and 1.45% from two or more races. 1.41% of the population were Hispanic or Latino of any race. There were 224 households, out of which 17.0% had children under the age of 18 living with them, 58.5% were married couples living together, 8.5% had a femal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Fork River (Missouri–Arkansas)
The North Fork River or the North Fork of White River (Its official name is "North Fork River"; "North Fork of White River" is a recognized variant.) is a tributary of the White River, into which it flows near Norfork, Arkansas. It rises in the southwest corner of Texas County, at the southeast margin the city of Mountain Grove, and flows generally southwards through the southwest corner of Texas, eastern Douglas and Ozark counties. It flows through Mark Twain National Forest and gathers the waters of many streams, including its major tributary, Bryant Creek. The watershed includes major portions of eastern Douglas and Ozark counties and includes portions of Webster, Wright, Texas and Howell counties in Missouri. South of Tecumseh, Missouri, the river becomes Norfork Lake, a reservoir created by Norfork Dam in Baxter County, Arkansas. A few miles below the dam, the North Fork River joins the White River near the town of Norfork, Arkansas.''Arkansas Atlas & Gazetteer,'' DeLo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
