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Tiger Dam
Inflatable rubber dams are cylindrical rubber fabrics placed across channels, and streams and act as a weir or dam to raise the upstream water level when inflated. The membrane is a multi-layer fabric made of synthetic fibre (usually nylon) and rubberised on one or both sides. The fabric is flexible and yet exhibits good wear-resistance characteristics. A layer of stainless steel mesh or ceramic chips can be embedded in the surface layer to reduce or prevent vandal damage. The inflatable flexible membrane dams (IFMD, rubber dams, tiger dam) were developed in the 1950s by Norman M. Imbertson of the Los Angeles Department of Water and Power and were originally called fabridams. They are installed in stream and river beds, generally being bolted into a concrete foundation. They are used to divert water for irrigation, temporarily raise existing dams, flood control, water retention for aquifer recharge, reduce or prevent salt water intrusion into fresh water areas, protect low-lying ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weir
A weir or low-head dam is a barrier across the width of a river that alters the flow characteristics of water and usually results in a change in the height of the water level. Weirs are also used to control the flow of water for outlets of lakes, ponds, and reservoirs. There are many weir designs, but commonly water flows freely over the top of the weir crest before cascading down to a lower level. There is no single definition as to what constitutes a weir. ''Weir'' can also refer to the skimmer found in most in-ground swimming pools, which controls the flow of water pulled into the filtering system. Etymology The word likely originated from Middle English ''were'', Old English ''wer'', a derivative of the root of the verb ''werian,'' meaning "to defend, dam". The German cognate is ''Wehr'', which means the same as English weir. Function Commonly, weirs are used to prevent flooding, measure water discharge, and help render rivers more Navigability, navigable by boat. In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hubert Chanson
Hubert Chanson (born 1 November 1961) is a professional engineer and academic in hydraulic engineering and environmental fluid mechanics. Since 1990 he has worked at the University of Queensland. Research Chanson completed a Doctor of Philosophy, PhD at the University of Canterbury in New Zealand in 1988. Chanson is Professor of Civil Engineering at the University of Queensland, where he has been since 1990, having previously enjoyed an industrial career for six years. His main field of expertise is environmental fluid mechanics and hydraulic engineering, both in terms of theoretical fundamentals, physical and numerical modelling. He leads a group of five to ten researchers, largely targeting flows around hydraulic structures, two-phase (gas-liquid and solid-liquid) free-surface flows, turbulence in steady and unsteady open channel flows, using computation, lab-scale experiments, field work and analysis. He serves on the editorial boards of International Journal of Multiphase F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shikellamy State Park
Shikellamy State Park is a Pennsylvania state park located at the confluence of the West Branch Susquehanna River and Susquehanna River in Pennsylvania. The park is divided into two sections. The older part, on a bluff on the western bank of the Susquehanna River, is the Shikellamy overlook in Union Township, Union County. The newer part is the marina on the southern end of Packer Island in Upper Augusta Township, Northumberland County. Packer's Island lies between the city of Sunbury and the borough of Northumberland at the confluence of the two branches of the river. History Shikellamy State Park is named in honor of Shikellamy, an Iroquois chief. Chief Shikellamy played a major role in the history of the frontier in Pennsylvania. He was a friend of the Native Americans and the American Colonists of the 18th century. Shikellamy's village was located near where the overlook section of the park is today. Shikellamy State Park was opened in two phases. The overlook w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Augusta (Pennsylvania)
The Adam T. Bower Memorial Dam (formerly known as the Sunbury Fabridam) is the world's longest inflatable dam. The dam is located just below the confluence of the Western and Main Branches of the Susquehanna River, in Upper Augusta Township, Northumberland County, Pennsylvania, Upper Augusta Township, between the town of Shamokin Dam, Pennsylvania, Shamokin Dam and the city of Sunbury, Pennsylvania. The dam is 2,100 feet (640 m) long. When it is raised in the summer time, it creates the 3,000 acre (12 km2) Lake Augusta (Pennsylvania), Lake Augusta, which is used for recreation. The dam and lake are part of Shikellamy State Park. In 2001, the dam was renamed for Adam T. Bower, Chief Clerk of the Pennsylvania House of Representatives from 1967–68 and Director of Services during the Pennsylvania Constitutional Convention of 1967-68, by Act 2001-5 of the Pennsylvania General Assembly. There arplans underwayto add a fish ladder to the dam. The fish ladder is primarily to allow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
