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Completed in 1872, the Boyds Corner Dam saw the use of concrete in dam construction for the first time since the Ancient Romans. [ citation needed ] It was put into service in 1873, 78 feet (24 m) high, [ 2 ] making the Boyds Corner Reservoir the City's second oldest, after the New Croton Reservoir .
Chute spillway of Llyn Brianne dam in Wales. A spillway is a structure used to provide the controlled release of water downstream from a dam or levee, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure that water does not damage parts of the structure not ...
Shower door. Other common devices for containing water spray include a highly flexible, waterproof bathtub or shower curtain, or more recently, a shower door, which is a permanently installed sliding or pivoting door made from glass or plastic. Containing water spray, leaks, and splashes within the bathtub is particularly important in bathrooms ...
Pinopolis Dam is a dam in Berkeley County, South Carolina. The earthen and concrete dam was completed in 1941 by Santee Cooper, the state-owned electric and water utility also known as South Carolina Public Service Authority. [1] The dam is 138 feet high and 11,500 feet long at its crest. [2]
Slickline is more commonly used in production tubing. The wireline operator monitors at surface the slickline tension via a weight indicator gauge and the depth via a depth counter 'zeroed' from surface, lowers the downhole tool to the proper depth, completes the job by manipulating the downhole tool mechanically, checks to make sure it worked if possible, and pulls the tool back out by ...
In addition to traffic safety considerations, officials were also concerned about the safety and security of Hoover Dam, specifically the impact a vehicle accident could have on the dam's operation and the waters of Lake Mead. [8] Officials first discussed the need for a new Colorado River crossing that would bypass the dam in the 1960s. [9]
A chamfer with a "lark's tongue" finish. A chamfer (/ ˈ ʃ æ m f ər / SHAM-fər or / ˈ tʃ æ m f ər / CHAM-fər) is a transitional edge between two faces of an object.Sometimes defined as a form of bevel, it is often created at a 45° angle between two adjoining right-angled faces.
A dental dam or rubber dam is a thin, 6-inch (150 mm) square sheet, usually latex or nitrile, used in dentistry to isolate the operative site (one or more teeth) from the rest of the mouth. Sometimes termed " Kofferdam " (from German ), it was designed in the United States in 1864 by Sanford Christie Barnum [ de ] . [ 1 ]