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Holter Lake
Holter Dam is a hydroelectric straight gravity dam on the Missouri River about northeast of Helena, Montana, in the United States.''Upper Missouri River Reservoir Fisheries Management Plan, 2010-2019,'' Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 11. The dam, which was built between 1908 and 1918, is long and high.Aarstad, et al., ''Montana Place Names From Alzada to Zortman,'' 2009, p. 125. The reservoir formed by the dam, Holter Lake (also known as Holter Reservoir) is long and has a storage capacity of of water when full. The dam is a "run-of-the-river" dam because it can generate electricity without needing to store additional water supplies behind the dam.''Upper Missouri River Reservoir Fisheries Management Plan, 2010-2019,'' Montana Department of Fish, Wildlife and Parks, May 13, 2010, p. 9.Badovinac, ''Fly Fishing: Montana's Missouri River,'' 2003, p. 17. Dam and lake Holter Dam Holter Dam was built by the United Missouri River Power Company and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panic Of 1893
The Panic of 1893 was an economic depression in the United States that began in 1893 and ended in 1897. It deeply affected every sector of the economy, and produced political upheaval that led to the political realignment of 1896 and the presidency of William McKinley. Causes The Panic of 1893 has been traced to many causes, one of those points to Argentina; investment was encouraged by the Argentine agent bank, Baring Brothers. However, the 1890 wheat crop failure and a failed coup in Buenos Aires ended further investments. In addition, speculations in South African and Australian properties also collapsed. Because European investors were concerned that these problems might spread, they started a run on gold in the U.S. Treasury. Specie was considered more valuable than paper money; when people were uncertain about the future, they hoarded specie and rejected paper notes.Nelson, Scott Reynolds. 2012. A Nation of Deadbeats. New York: Alfred Knopf, p. 189. During the Gi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Los Angeles Aqueduct
The Los Angeles Aqueduct system, comprising the Los Angeles Aqueduct (Owens Valley aqueduct) and the Second Los Angeles Aqueduct, is a water conveyance system, built and operated by the Los Angeles Department of Water and Power. The Owens Valley aqueduct was designed and built by the city's water department, at the time named The Bureau of Los Angeles Aqueduct, under the supervision of the department's Chief Engineer William Mulholland. The system delivers water from the Owens River in the Eastern Sierra Nevada Mountains to Los Angeles, California. The aqueduct's construction was controversial from the start, as water diversions to Los Angeles eliminated the Owens Valley as a viable farming community. Clauses in the city's charter originally stated that the city could not sell or provide surplus water to any area outside the city, forcing adjacent communities to annex themselves into Los Angeles. The aqueduct's infrastructure also included the completion of the St. Francis Dam i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock And Dam No
Lock(s) may refer to: Common meanings *Lock and key, a mechanical device used to secure items of importance *Lock (water navigation), a device for boats to transit between different levels of water, as in a canal Arts and entertainment * ''Lock'' (film), a 2016 Punjabi film * Lock (''Saga of the Skolian Empire''), a sentient machine in the novels by Catherine Asaro * Lock (waltz), a dance figure * ''Locked'' (miniseries), Indian web miniseries * ''The Lock'' (Constable), an 1824 painting by John Constable * ''The Lock'' (Fragonard) or ''The Bolt'', a 1777 painting by Jean-Honoré Fragonard * ''Locks'' (album), by Garnet Crow, 2008 People *Lock (surname) *Ormer Locklear (1891–1920), American stunt pilot and film actor nicknamed "Lock" * George Locks (1889–1965), English cricketer *Lock Martin (1916–1959), stage name of American actor Joseph Lockard Martin, Jr. Places *Lock, Ohio, an unincorporated community in the United States *Lock, South Australia, a small town in the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles River Dam
The Charles River Dam is a flood control structure on the Charles River in Boston, Massachusetts, located just downstream of the Leonard P. Zakim Bunker Hill Memorial Bridge, near Lovejoy Wharf, on the former location of the Warren Bridge. History The Charles River Dam was built by the U.S. Army Corps of Engineers. The structure also includes the "Colonel Richard Gridley Locks", named for General George Washington's first army engineer. Built and operational in 1978, the three locks can be crossed by pedestrians as well as bicyclists. It is part of the popular Boston Harborwalk. The dam contains three individual locks, with one wider than the other two to accommodate the occasional passing of a larger vessel. The structure also includes a fish passage. Six diesel-powered, 2700 horsepower turbo-charged engines drive six pumps with a combined capacity of about per minute or 8140 cubic feet per second (CFS). The dam controls the surface level of the river basin as well its tribut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hetch Hetchy Aqueduct
Hetch Hetchy is a valley, a reservoir, and a water system in California in the United States. The glacial Hetch Hetchy Valley lies in the northwestern part of Yosemite National Park and is drained by the Tuolumne River. For thousands of years before the arrival of settlers from the United States in the 1850s, the valley was inhabited by Native Americans who practiced subsistence hunting-gathering. During the late 19th century, the valley was renowned for its natural beauty – often compared to that of Yosemite Valley – but also targeted for the development of water supply for irrigation and municipal interests. The controversy over damming Hetch Hetchy became mired in the political issues of the day. The law authorizing the dam passed Congress on December 7, 1913. In 1923, the O'Shaughnessy Dam was completed on the Tuolumne River, flooding the entire valley under the Hetch Hetchy Reservoir. The dam and reservoir are the centerpiece of the Hetch Hetchy Project, which in 1934 be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Design Engineer
A design engineer is an engineer focused on the engineering design process in any of the various engineering disciplines (including civil, mechanical, electrical, chemical, textiles, aerospace, nuclear, manufacturing, systems, and structural /building/architectural) and design disciplines like Human-Computer Interaction. Design engineers tend to work on products and systems that involve adapting and using complex scientific and mathematical techniques. The emphasis tends to be on utilizing engineering physics and other applied sciences to develop solutions for society. A design engineer usually works with a team of other engineers and other types of designers (e.g. industrial designers), to develop conceptual and detailed designs that ensure a product functions, performs, and is fit for its purpose. They may also work with marketers to develop the product concept and specifications to meet customer needs, and may direct the design effort. In many engineering areas, a distinction ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Ripley Freeman
John Ripley Freeman (July 27, 1855 – October 6, 1932) was an American civil and hydraulic engineer. He is known for the design of several waterworks and served as president of both the American Society of Civil Engineers and the American Society of Mechanical Engineers. Biography Freeman was born in West Bridgton, Maine on his father's farm. He attended the country school in his hometown and public schools in Portland, Maine and Lawrence, Massachusetts. He entered the Massachusetts Institute of Technology in 1872, graduating with his BSc in civil engineering in 1876.Vannevar Bush,John Ripley Freeman, 1855–1932" ''Biographical Memoirs,'' vol.8; New York: National Academy of Sciences, 1935, p. 170-187 After graduating, Freeman started his career at the Essex water power company as assistant to the company's engineer, Hiram F. Mills. In those days he became acquainted with other leading engineers such as Charles Storer Storrow, James B. Francis, Joseph R. Davis and John C. H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anton Holter
Anton Martinius Holter (1831-1921) was a Montana pioneer, businessman and politician. He made his fortune in lumber, farming, real estate and hardware. He emigrated from his native Norway, arriving in the United States in 1854. He first worked as a carpenter in Iowa and Minnesota, before building his first sawmill near Virginia City, Montana. Holter established lumber yards in several other Montana towns, including Helena, Great Falls, and Nevada City, among others. In Helena, he founded several general merchandise and hardware companies, including A.M. Holter Hardware Company, which remained in business until 1958. Holter also served on Montana's first territorial council and first legislature, as well as Helena's first school board. The Holter family remained active in Montana public affairs for many years and the family name is featured prominently in Montana, and especially within Helena, on places, institutions and landmarks, including the Holter Museum of Art, Holter Lake, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaconda Copper
The Anaconda Copper Mining Company, known as the Amalgamated Copper Company between 1899 to 1915, was an American mining company headquartered in Butte, Montana. It was one of the largest trusts of the early 20th century and one of the largest mining companies in the world for much of the 20th century. Marcus Daly bought the original silver mine, named the Anaconda, in 1880. Daly partnered with George Hearst, James Ben Ali Haggin and Lloyd Tevis in 1881 to develop it, and the company expanded dramatically in 1882 with the discovery of huge copper deposits. In 1883, Daly began building a smelter and the town of Anaconda to process copper mined in Butte. In 1899, with Hearst and Tevis deceased, Haggin retired and Daly restructured the company, into the Amalgamated Copper Company bringing in H H Rogers and William Rockefeller. By 1910, Amalgamated had expanded its operations and bought the assets of all other copper companies operating in Butte. In 1922, Anaconda bought mining ope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedrock
In geology, bedrock is solid Rock (geology), rock that lies under loose material (regolith) within the crust (geology), crust of Earth or another terrestrial planet. Definition Bedrock is the solid rock that underlies looser surface material. An exposed portion of bedrock is often called an outcrop. The various kinds of broken and weathered rock material, such as soil and subsoil, that may overlie the bedrock are known as regolith. Engineering geology The surface of the bedrock beneath the soil cover (regolith) is also known as ''rockhead'' in engineering geology, and its identification by digging, drilling or geophysics, geophysical methods is an important task in most civil engineering projects. Superficial deposition (geology), deposits can be very thick, such that the bedrock lies hundreds of meters below the surface. Weathering of bedrock Exposed bedrock experiences weathering, which may be physical or chemical, and which alters the structure of the rock to leave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Masonry
Masonry is the building of structures from individual units, which are often laid in and bound together by mortar; the term ''masonry'' can also refer to the units themselves. The common materials of masonry construction are bricks, building stone such as marble, granite, and limestone, cast stone, concrete blocks, glass blocks, and adobe. Masonry is generally a highly durable form of construction. However, the materials used, the quality of the mortar and workmanship, and the pattern in which the units are assembled can substantially affect the durability of the overall masonry construction. A person who constructs masonry is called a mason or bricklayer. These are both classified as construction trades. Applications Masonry is commonly used for walls and buildings. Brick and concrete block are the most common types of masonry in use in industrialized nations and may be either load-bearing or non-load-bearing. Concrete blocks, especially those with hollow cores, offer va ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
