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Spencer Dam
Spencer Dam was a run of the river hydroelectric dam on the Niobrara River in Boyd County and Holt County, Nebraska, about southeast of Spencer. The dam was operated by the Nebraska Public Power District (NPPD). Heavy precipitation during the March 2019 North American blizzard led to a failure of the dam in the early morning of 14 March, causing heavy flooding downstream. History Initial construction was completed in 1927, at a site located upstream of the Niobrara's confluence with the Missouri River. The dam was originally long and high, constructed in several sections. The powerhouse was located on the north bank of the river, consisting of two Westinghouse generators with capacities of 2000 and 1300 kilowatts. The spillway consisted of four tainter gates and five stoplog gates to the south of the powerhouse. The combined length of the powerhouse and spillway was ; the rest of the dam was an earth embankment extending to the south side of the Niobrara valley. The dam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radial Gate
The Tainter gate is a type of radial arm floodgate used in dams and canal locks to control water flow. It is named for Wisconsin structural engineer Jeremiah Burnham Tainter. A side view of a Tainter gate resembles a slice of pie with the curved part of the piece facing the source or upper pool of water and the tip pointing toward the destination or lower pool. The curved face or skinplate of the gate takes the form of a wedge section of cylinder. The straight sides of the pie shape, the trunnion arms, extend back from each end of the cylinder section and meet at a trunnion which serves as a pivot point when the gate rotates. Pressure forces on a submerged body act perpendicular to the body's surface. The design of the Tainter gate results in every pressure force acting through the centre of the imaginary circle of which the gate is a section, so that all resulting pressure force acts through the pivot point of the gate, making construction and design easier. When a Tain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams Completed In 1927
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dam Failures In The United States
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, tap water, human consumption, Industrial water, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as Dike (construction), dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam (Jordan), Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam build ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Nebraska
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Boyd County, Nebraska
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artisti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pete Ricketts
John Peter Ricketts (born August 19, 1964) is an American politician serving as the 40th governor of Nebraska since 2015. He is a member of the Republican Party. Ricketts is the son of Joe Ricketts, founder of TD Ameritrade. He is also, with other family members, a part owner of Major League Baseball's Chicago Cubs. In 2006, he ran for the U.S. Senate against incumbent Ben Nelson, losing in a landslide. He ran for the Nebraska governorship in 2014, narrowly winning a six-way Republican primary, and defeated Democratic Party nominee Chuck Hassebrook, 57% to 39%. He was reelected in 2018, defeating Democratic nominee Bob Krist, 59% to 41%. Early life and education Ricketts was born in Nebraska City on August 19, 1964, the oldest of four children of Joe Ricketts and Marlene (Volkmer) Ricketts. The family later moved to Omaha. Joe Ricketts founded First Omaha Securities in 1975, one of the first discount stockbrokers in the United States. It prospered, changing its name to Ameritrad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chief Standing Bear Memorial Bridge
The Chief Standing Bear Memorial Bridge is a bridge across the Missouri River at the Nebraska-South Dakota border. Located near Niobrara, Nebraska, not far downstream from the confluence of the Niobrara River with the Missouri, it joins Nebraska Highway 14 to South Dakota Highway 37. The bridge is named for Standing Bear, a Ponca chief born and buried nearby, who was the plaintiff in ''Standing Bear v. Crook'', a landmark 1879 U.S. District Court case that established the legal rights of Native Americans to move about freely. History Before the bridge was constructed, Highway 14 ended at the Missouri. Travellers who needed to cross the river had to detour downstream to the Meridian Bridge at Yankton, South Dakota, or upstream to Fort Randall Dam near Pickstown, South Dakota. A seasonal ferry, closed in the winter, crossed the river at Niobrara for some time; but it ceased operation in 1984. Local residents had sought a bridge since the 1920s. Construction of a toll brid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gavins Point Dam
Gavins Point Dam is a long embankment rolled-earth and chalk-fill dam which spans the Missouri River and impounds Lewis and Clark Lake. The dam joins Cedar County, Nebraska with Yankton County, South Dakota a distance of 811.1 river miles (1,305 km) upstream of St. Louis, Missouri, where the river joins the Mississippi River. The dam and hydroelectric power plant were constructed as the Gavins Point Project from 1952 to 1957 by the United States Army Corps of Engineers as part of the Pick-Sloan Plan. The dam is located approximately 4 miles (6.4 km) west or upstream of Yankton, South Dakota. History and background Gavins Point Dam was constructed as a part of the Pick–Sloan Missouri Basin Program, authorized by the Flood Control Act of 1944 by Congress. The dam is named after Gavins Point, a bluff along the northern bank of the Missouri River named for an early settler, now within the western end of Lewis & Clark Recreation Area, which was to be the original locat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knox County, Nebraska
Knox County is a county in the U.S. state of Nebraska. As of the 2020 United States Census, the population was 8,391. Its county seat is Center. Knox County was named for Continental and U.S. Army Major General Henry Knox. In the Nebraska license plate system, Knox County is represented by the prefix 12 (it had the 12th-largest number of vehicles registered in the county when the license plate system was established in 1922). History Knox County was organized by the Territorial Legislature in 1857, and named L'Eau Qui Court, that being the French name for the river named by the Ponca Niobrara—both names meaning, in English, Running Water. The name was changed to Knox by a statute passed February 21, 1873, which took effect April 1, 1873. Geography Knox County lies along the north line of Nebraska. Its north boundary line abuts the south boundary line of the state of South Dakota. The terrain of the county consists of low rolling hills sloped to the northeast; most of the fla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nebraska Highway 12
Nebraska Highway 12 is a highway in northern and northeastern Nebraska. It has a western terminus at U.S. Highway 83 in Valentine and an eastern terminus at U.S. Highway 20 west of Jackson. The highway largely lies within 10 miles (16 km) of the South Dakota border its entire length. The highway has been designated the Outlaw Trail Scenic Byway. Route description Nebraska Highway 12 begins at an intersection with US 83 in Valentine, Nebraska. It goes northeast out of Valentine through the Fort Niobrara National Wildlife Refuge before turning east. It also provides the easiest link to Smith Falls State Park. It passes through Sparks, then turns southeasterly towards Springview, where it meets U.S. Highway 183. After a brief concurrency with US 183 north, it turns east and briefly overlaps Nebraska Highway 137 before continuing eastward to another concurrency with Nebraska Highway 11 in Butte. It goes south out of Butte, then turns east and meets U.S. Highway 281 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Niobrara, Nebraska
Niobrara (; Omaha: ''Ní Ubthátha'' ''Tʰáⁿwaⁿgthaⁿ'' , meaning "water spread-out village")Dorsey, James Owen (1890)''The Cegiha Language: Contributions to North American Ethnology'' 4. Washington: US Department of the Interior: Government Printing Office, p. 214, line 10. is a village in Knox County, Nebraska, United States. The population was 363 at the 2020 census. History Niobrara was founded in 1856, when a group of men headed by a Dr. Benneville Yeakel Shelly marked their claim to an area on the banks of the Missouri River. There, a fort was built to protect the early settlers from Indian attacks. The settlement took its name from the Niobrara River. They built a log garrison of cottonwood, which later became known as "Old Cabin". The company, founded by Shelly and others, was called L'eau Qui Court Company. This Company failed, and the Niobrara Township Company was organized. The new town was eventually called "Niobrara", an Omaha word for "running water". On ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
