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Salisbury Viaduct
The Salisbury Viaduct is a bridge in Somerset County, Pennsylvania near Meyersdale that spans the Casselman River valley. Built in 1912 by the Western Maryland Railway for its Connellsville Extension, it was built to accommodate two tracks, but only one was ever installed. It was decommissioned in 1975; in 1998, after being modified for use as a rail trail A rail trail is a shared-use path on railway right of way. Rail trails are typically constructed after a railway has been abandoned and the track has been removed, but may also share the right of way with active railways, light rail, or streetcar ..., it opened to pedestrians and cyclists as part of the Great Allegheny Passage. References Bridges in Somerset County, Pennsylvania Trestle bridges in the United States Pedestrian bridges in Pennsylvania Cyclist bridges in the United States {{Pennsylvania-bridge-struct-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Allegheny Passage
The Great Allegheny Passage (GAP) is a rail trail between Pittsburgh, Pennsylvania and Cumberland, Maryland. Together with the C&O Canal towpath, the GAP is part of a route between Pittsburgh and Washington, D.C., that is popular with through hikers and cyclists. History The GAP follows former right-of-way of the Baltimore and Ohio Railroad, Pittsburgh and Lake Erie Railroad, Union Railroad, and Western Maryland Railway. The first section of the GAP— near Ohiopyle—opened in 1986. The section between Woodcock Hollow and Cumberland opened on December 13, 2006. The GAP was completed in 2013 when the section between West Homestead and Point State Park in Pittsburgh opened. The completion project was named ''The Point Made'', reflecting the fact that it was now possible to reach Point State Park from Washington, D.C. Celebrations took place on June 15, 2013. With its opening, Pennsylvania became the state with the most rail trails—, with more under development. The ove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Casselman River
The Casselman River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed August 15, 2011 tributary of the Youghiogheny River in western Maryland and Pennsylvania in the United States.Gertler, Edward. ''Keystone Canoeing'', Seneca Press, 2004. The Casselman River drains an area of 576 square miles. The river has been used for transportation across the Allegheny Mountains, between the cities of Baltimore and Washington, D.C. in the east and Pittsburgh in the west. Two railroads followed the Casselman River from Meyersdale, Pennsylvania to Confluence. First is the B&O Railroad, running between Baltimore and Pittsburgh, which was completed in 1871, and is currently owned by CSX. Second is the Western Maryland Railway, which ran from Cumberland, Maryland to Connellsville, Pennsylvania. Although the Western Maryland was abandoned in the 1980s, the right-of-way has been converted into the Great Allegheny Passage, a rail trail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight 93 Memorial Highway
Flight or flying is the process by which an object moves through a space without contacting any planetary surface, either within an atmosphere (i.e. air flight or aviation) or through the vacuum of outer space (i.e. spaceflight). This can be achieved by generating aerodynamic lift associated with gliding or propulsive thrust, aerostatically using buoyancy, or by ballistic movement. Many things can fly, from animal aviators such as birds, bats and insects, to natural gliders/parachuters such as patagial animals, anemochorous seeds and ballistospores, to human inventions like aircraft (airplanes, helicopters, airships, balloons, etc.) and rockets which may propel spacecraft and spaceplanes. The engineering aspects of flight are the purview of aerospace engineering which is subdivided into aeronautics, the study of vehicles that travel through the atmosphere, and astronautics, the study of vehicles that travel through space, and ballistics, the study of the flight of project ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meyersdale, Pennsylvania
Meyersdale is a Borough (Pennsylvania), borough in Somerset County, Pennsylvania, Somerset County, Pennsylvania, on the Casselman River, southeast of Pittsburgh. It is part of the Johnstown, Pennsylvania, Metropolitan Statistical Area. In the past, Meyersdale's chief industry was the mining of coal. Meyersdale is located along the Great Allegheny Passage, a multi-use recreational rail trail. The List of festivals in Pennsylvania#March, Pennsylvania Maple Festival has taken place each spring in Meyersdale since 1948. History Meyersdale was first settled as early as 1776, but the growth of the town dates from the advent of the first railroad in 1871. Coal mining began in the next year. The borough was named for an early settler: Peter Meyers, a local farmer who was integral to the beginning of the town. Early names for Meyersdale included Meyers Mills and Dale City. Jacob Olinger had 30 lots laid out on his land in 1844 with Alexander Philson of Berlin serving as the surveyor. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trestle Bridge
A trestle bridge is a bridge composed of a number of short spans supported by closely spaced frames. A trestle (sometimes tressel) is a rigid frame used as a support, historically a tripod used to support a stool or a pair of isosceles triangles joined at their apices by a plank or beam such as the support structure for a trestle table. Each supporting frame is a bent. A trestle differs from a viaduct in that viaducts have towers that support much longer spans and typically have a higher elevation. Timber and iron trestles (i.e. bridges) were extensively used in the 19th century, the former making up from 1 to 3 percent of the total length of the average railroad. In the 21st century, steel and sometimes concrete trestles are commonly used to bridge particularly deep valleys, while timber trestles remain common in certain areas. Many timber trestles were built in the 19th and early 20th centuries with the expectation that they would be temporary. Timber trestles were use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Somerset County, Pennsylvania
Somerset County (Pennsylvania Dutch language, Pennsylvania German: ''Somerset Kaundi'') is a County (United States), county in the Commonwealth (U.S. state), Commonwealth of Pennsylvania. As of the 2020 United States census, 2020 census, the population was 74,129. Its county seat is Somerset, Pennsylvania, Somerset. The county was created from part of Bedford County, Pennsylvania, Bedford County on April 17, 1795, and named after the county of Somerset in England. Somerset County comprises the Somerset, PA micropolitan statistical area, which is included in the Johnstown, Pennsylvania, Johnstown–Somerset, PA combined statistical area. The county is famous for being the crash site of United Airlines Flight 93, one of the four flights involved in the September 11 attacks, which crashed near the village of Shanksville, Pennsylvania, Shanksville after the flight's passengers struggled with Al-Qaeda hijackers for control of the plane, which terrorists intended to fly into either t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meyersdale
Meyersdale is a borough in Somerset County, Pennsylvania, on the Casselman River, southeast of Pittsburgh. It is part of the Johnstown, Pennsylvania, Metropolitan Statistical Area. In the past, Meyersdale's chief industry was the mining of coal. Meyersdale is located along the Great Allegheny Passage, a multi-use recreational rail trail. The Pennsylvania Maple Festival has taken place each spring in Meyersdale since 1948. History Meyersdale was first settled as early as 1776, but the growth of the town dates from the advent of the first railroad in 1871. Coal mining began in the next year. The borough was named for an early settler: Peter Meyers, a local farmer who was integral to the beginning of the town. Early names for Meyersdale included Meyers Mills and Dale City. Jacob Olinger had 30 lots laid out on his land in 1844 with Alexander Philson of Berlin serving as the surveyor. Additional lots were laid out in 1852, with M.D. Miller acting as the surveyor, and in 1869, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Maryland Railway
The Western Maryland Railway was an American Class I railroad (1852–1983) which operated in Maryland, West Virginia, and Pennsylvania. It was primarily a coal hauling and freight railroad, with a small passenger train operation. The WM became a property of the Chessie System holding company in 1973, although it continued independent operations until May 1975 after which time many of its lines were abandoned in favor of parallel Baltimore and Ohio Railroad lines. In 1983 it was fully merged into the Baltimore & Ohio Railroad, which later was also merged with the former Chesapeake and Ohio Railroad into the Chessie System in 1987, which is now renamed as CSX Transportation. History Main line: Baltimore to Hagerstown The original main line began with the chartering of the Baltimore, Carroll and Frederick Railroad in 1852, with the intent of building a rail line from Baltimore west to Washington County, Maryland. The Maryland General Assembly changed the name of the c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rail Trail
A rail trail is a shared-use path on railway right of way. Rail trails are typically constructed after a railway has been abandoned and the track has been removed, but may also share the right of way with active railways, light rail, or streetcars (rails with trails), or with disused track. As shared-use paths, rail trails are primarily for non-motorized traffic including pedestrians, bicycles, horseback riders, skaters, and cross-country skiers, although snowmobiles and ATVs may be allowed. The characteristics of abandoned railways—gentle grades, well-engineered rights of way and structures (bridges and tunnels), and passage through historical areas—lend themselves to rail trails and account for their popularity. Many rail trails are long-distance trails, while some shorter rail trails are known as greenways or linear parks. Rail trails around the world Americas Bermuda The Bermuda Railway ceased to operate as such when the only carrier to exist in Bermuda folded in 1948. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges In Somerset County, Pennsylvania
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trestle Bridges In The United States
ATLAS-I (Air Force Weapons Lab Transmission-Line Aircraft Simulator), better known as Trestle, was a unique electromagnetic pulse (EMP) generation and testing apparatus built between 1972 and 1980 during the Cold War at Sandia National Laboratories near Kirtland Air Force Base in Albuquerque, New Mexico. ATLAS-I was the largest NNEMP (non-nuclear electromagnetic pulse) generator in the world, designed to test the radiation hardening of strategic aircraft systems against EMP pulses from nuclear warfare. Built at a cost of $60 million, it was composed of two parts: a pair of powerful Marx generators capable of simulating the electromagnetic pulse effects of a high-altitude nuclear explosion (HANE) of the type expected during a nuclear war, and a giant wooden trestle built in a bowl-shaped arroyo, designed to elevate the test aircraft above ground interference and orient it below the pulse in a similar manner to what would be seen in mid-air. Trestle is the world's largest str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedestrian Bridges In Pennsylvania
A pedestrian is a person traveling on foot, whether walking or running. In modern times, the term usually refers to someone walking on a road or pavement, but this was not the case historically. The meaning of pedestrian is displayed with the morphemes ''ped-'' ('foot') and ''-ian'' ('characteristic of'). This word is derived from the Latin term ''pedester'' ('going on foot') and was first used (in English language) during the 18th century. It was originally used, and can still be used today, as an adjective meaning plain or dull. However, in this article it takes on its noun form and refers to someone who walks. The word pedestrian may have been used in middle French in the Recueil des Croniques et Anchiennes Istories de la Grant Bretaigne, à présent nommé Engleterre. In California the definition of a pedestrian has been broadened to include anyone on any human powered vehicle that is not a bicycle, as well as people operating self-propelled wheelchairs by reason of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
