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Mountain Dell Reservoir
The Mountain Dell Dam provides a water equalizing and storage reservoir for Salt Lake City, Utah located east of the city in northeastern Salt Lake County, Utah, Salt Lake County, near Interstate 80 in Parley's Canyon. Designed by John S. Eastwood, and constructed between 1914 and 1925, the dam is an example of a mixed buttress dam and multiple arch dam construction. At the time the plans were made, the city was in need of a sufficient supply of water, especially during late summer and the middle of winter. With the completion of the dam, the city had an available storage capacity of , and distributing or equalizing capacity of compared to previously. The dam was listed on the National Register of Historic Places in 1980. Mountain Dell Dam is listed as in "poor" condition and is under repair. Design Plans were made for three types of dam: * Arched solid dam, gravity type * Reinforced concrete dam of the Nils F. Ambursen, Ambursen type * Multiple arch reinforced concre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch Dams
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it. Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof. Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture, and their systematic use started with the ancient Romans, who were the first to apply the technique to a wide range of structures. Basic concepts An arch is a pure compression form. It can span a large area by resolving forces into compressive stresses, and thereby eliminating tensile stresses. This is sometimes denominated "arch action". As the forces in the arch are transferred to its base, the arch pushes outward at its base, denominated "thrust". As the rise, i. e. height, of the arch decreases the outward thrust increases. In order to preserve arch action and prevent collapse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buttress Dams
A buttress is an architectural structure built against or projecting from a wall which serves to support or reinforce the wall. Buttresses are fairly common on more ancient buildings, as a means of providing support to act against the lateral (sideways) forces arising out of inadequately braced roof structures. The term ''counterfort'' can be synonymous with buttress and is often used when referring to dams, retaining walls and other structures holding back earth. Early examples of buttresses are found on the Eanna Temple (ancient Uruk), dating to as early as the 4th millennium BC. Terminology In addition to flying and ordinary buttresses, brick and masonry buttresses that support wall corners can be classified according to their ground plan. A clasping or clamped buttress has an L shaped ground plan surrounding the corner, an angled buttress has two buttresses meeting at the corner, a setback buttress is similar to an angled buttress but the buttresses are set back from the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industrial Buildings And Structures On The National Register Of Historic Places In Utah
Industrial may refer to: Industry * Industrial archaeology, the study of the history of the industry * Industrial engineering, engineering dealing with the optimization of complex industrial processes or systems * Industrial city, a city dominated by one or more industries * Industrial loan company, a financial institution in the United States that lends money, and may be owned by non-financial institutions * Industrial organization, a field that builds on the theory of the firm by examining the structure and boundaries between firms and markets * Industrial Revolution, the development of industry in the 18th and 19th centuries * Industrial society, a society that has undergone industrialization * Industrial technology, a broad field that includes designing, building, optimizing, managing and operating industrial equipment, and predesignated as acceptable for industrial uses, like factories * Industrial video, a video that targets “industry” as its primary audience * Industri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Water Landmark
An American Water Landmark is a landmark within the United States, Canada, or Mexico that is a historic location and is associated in some way with water. The American Water Works Association American Water Works Association (AWWA) is an international non-profit, scientific and educational association founded to improve water quality and supply. Established in 1881, it is a lobbying organization representing a membership (as of 2012) o ... has designated American Water Landmarks since 1969. The following is the list of structures given the American Water Landmark designation: See also * Water supply infrastructure on the National Register of Historic Places - ''U.S. sites'' References {{Clear Water supply infrastructure in the United States Infrastructure in Canada Tourist attractions in Canada Lists of buildings and structures in Canada Lists of buildings and structures in the United States Lists of places in the United States Water supply infrastructure Heritag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parrott Bros
Parrott may refer to: __NOTOC__ People * Parrott (surname) Places in the United States * Parrott, Georgia, a city in the United States * Parrott, Ohio, an unincorporated community * Parrott, Virginia, an unincorporated community in Pulaski County, Virginia * Parrott Hall, New York historical home Military * Parrott rifle, a type of artillery used in the American Civil War * , a United States Navy destroyer which served in World War II * , a United States Navy minesweeper See also * Arendell Parrott Academy, a school in North Carolina * Parrottsville, Tennessee Parrottsville is a town in Cocke County, Tennessee, Cocke County, Tennessee, United States. The population was 263 at the 2010 census. Geography Parrottsville is located in northeastern Cocke County at (36.009391, -83.091186) U.S. Route 321, a f ..., a town * Parrot (other) {{disambiguation, geo, ship ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engineer
Engineers, as practitioners of engineering, are professionals who invent, design, analyze, build and test machines, complex systems, structures, gadgets and materials to fulfill functional objectives and requirements while considering the limitations imposed by practicality, regulation, safety and cost. "Science is knowledge based on our observed facts and tested truths arranged in an orderly system that can be validated and communicated to other people. Engineering is the creative application of scientific principles used to plan, build, direct, guide, manage, or work on systems to maintain and improve our daily lives." The word ''engineer'' (Latin ) is derived from the Latin words ("to contrive, devise") and ("cleverness"). The foundational qualifications of an engineer typically include a four-year bachelor's degree in an engineering discipline, or in some jurisdictions, a master's degree in an engineering discipline plus four to six years of peer-reviewed professiona ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sylvester Q
Sylvester or Silvester is a name derived from the Latin adjective ''silvestris'' meaning "wooded" or "wild", which derives from the noun ''silva'' meaning "woodland". Classical Latin spells this with ''i''. In Classical Latin, ''y'' represented a separate sound distinct from ''i'', not a native Latin sound but one used in transcriptions of foreign words. After the Classical period ''y'' was pronounced as ''i''. Spellings with ''Sylv-'' in place of ''Silv-'' date from after the Classical period. Given name *Sylvester of Marsico (c. 1100–1162), Count of Marsico in the Kingdom of Sicily * Silvester Ashioya (born 1948), Kenyan hockey player *Silvester Bolam (1905–1953), British newspaper editor *Silvester Brito (1937–2018), American poet and academic * Sylvester Croom (born 1954), American football coach and former player * Silvester Diggles (1817–1880), Australian musician and ornithologist *Silvester Fernandes (born 1936), Kenyan hockey player * Silvester Gardiner (1708– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gate Valve
A gate valve, also known as a sluice valve, is a valve that opens by lifting a barrier (gate) out of the path of the fluid. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. The gate faces can be parallel but are most commonly wedge-shaped (in order to be able to apply pressure on the sealing surface). Typical use Gate valves are used to shut off the flow of liquids rather than for flow regulation, which is frequently done with a globe valve. When fully open, the typical gate valve has no obstruction in the flow path, resulting in very low flow resistance. The size of the open flow path generally varies in a nonlinear manner as the gate is moved. This means that the flow rate does not change evenly with stem travel. Depending on the construction, a partially open gate can vibrate from the fluid flow. Gate valves are mostly used with larger pipe diameters (from 2" to the largest pipelines) since they are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butterfly Valve
A butterfly valve is a valve that isolates or regulates the flow of a fluid. The closing mechanism is a disk that rotates. Principle of operation Operation is similar to that of a ball valve, which allows for quick shut off. Butterfly valves are generally favored because they cost less than other valve designs, and are lighter weight so they need less support. The disc is positioned in the center of the pipe. A rod passes through the disc to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, so it induces a pressure drop, even when open. A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Degree (angle)
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane (mathematics), plane angle in which one Turn (geometry), full rotation is 360 degrees. It is not an SI unit—the SI unit of angular measure is the radian—but it is mentioned in the SI Brochure, SI brochure as an Non-SI units mentioned in the SI, accepted unit. Because a full rotation equals 2 radians, one degree is equivalent to radians. History The original motivation for choosing the degree as a unit of rotations and angles is unknown. One theory states that it is related to the fact that 360 is approximately the number of days in a year. Ancient astronomers noticed that the sun, which follows through the ecliptic path over the course of the year, seems to advance in its path by approximately one degree each day. Some ancient calendars, such as the Iranian calendar, Persian calendar and the Babylonian calendar, used 360 days for a year. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
