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Manayunk Bridge
The Manayunk Bridge (also known as the Manayunk Viaduct, Pencoyd Viaduct, and Schuylkill River Railroad Bridge) is an S-shaped former railroad bridge over the Schuylkill River, Schuylkill Canal and Schuylkill Expressway, that connects Bala Cynwyd, Montgomery County and the Manayunk neighborhood of Philadelphia, Pennsylvania. Closed to rail traffic in 1986, it is now an extension of the Cynwyd Heritage Trail (along the river's west bank) and connects to the Schuylkill River Trail (along the east bank). History Built by the former Schuylkill Valley Division of the Pennsylvania Railroad, it is a large concrete open spandrel arch bridge built in an "S curve," earning both the current concrete bridge and its 1883 wrought-iron-truss predecessor the nickname of "S-Bridge." The bridge's challenging geometry was executed by T. L. Eyre, a Philadelphia contractor. Another notable feature is the saw-toothed construction joints along a 65-degree skew. In 1976, SEPTA purchased the br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SEPTA Ivy Ridge Line
The Cynwyd Line is a SEPTA Regional Rail line from Center City, Philadelphia, Center City Philadelphia to Cynwyd (SEPTA station), Cynwyd in Montgomery County, Pennsylvania, Montgomery County, Pennsylvania. Originally known as the Ivy Ridge Line, service was truncated on May 17, 1986, at its current terminus at Cynwyd (SEPTA station), Cynwyd. Track between Cynwyd and Ivy Ridge (SEPTA station), Ivy Ridge was dismantled between 2008 and 2010 for conversion as an interim rail trail, preventing service restoration for the foreseeable future. The Cynwyd Line is the shortest of the SEPTA regional rail lines, and is the second-shortest regional rail line in the United States after New Jersey Transit, New Jersey Transit's Princeton Branch. It is by far the least ridden SEPTA Regional Rail Line. It is fully Grade separation, grade-separated. Route The Cynwyd Line runs from Suburban Station to the 52nd Street Junction, where it diverges from Amtrak's Philadelphia to Harrisburg Main Line, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skew Arch
A skew arch (also known as an oblique arch) is a method of construction that enables an arch bridge to span an obstacle at some angle other than a right angle. This results in the faces of the arch not being perpendicular to its abutments and its plan view being a parallelogram, rather than the rectangle that is the plan view of a regular, or "square" arch. In the case of a masonry skew arch, the construction requires precise stonecutting, as the cuts do not form right angles, but once the principles were fully understood in the early 19th century, it became considerably easier and cheaper to build a skew arch of brick. The problem of building skew arch masonry bridges was addressed by a number of early civil engineers and mathematicians, including Giovanni Barbara (1726), William Chapman (1787), Benjamin Outram (1798), Peter Nicholson (1828), George Stephenson (1830), Edward Sang (1835), Charles Fox (1836), George W. Buck (1839) and William Froude (''c.'' 1844). History ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historic American Engineering Record In Philadelphia
History (derived ) is the systematic study and the documentation of the human activity. The time period of event before the invention of writing systems is considered prehistory. "History" is an umbrella term comprising past events as well as the memory, discovery, collection, organization, presentation, and interpretation of these events. Historians seek knowledge of the past using historical sources such as written documents, oral accounts, art and material artifacts, and ecological markers. History is not complete and still has debatable mysteries. History is also an academic discipline which uses narrative to describe, examine, question, and analyze past events, and investigate their patterns of cause and effect. Historians often debate which narrative best explains an event, as well as the significance of different causes and effects. Historians also debate the nature of history as an end in itself, as well as its usefulness to give perspective on the problems of the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railroad Bridges In Pennsylvania
Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a prepared flat surface, rail vehicles ( rolling stock) are directionally guided by the tracks on which they run. Tracks usually consist of steel rails, installed on sleepers (ties) set in ballast, on which the rolling stock, usually fitted with metal wheels, moves. Other variations are also possible, such as "slab track", in which the rails are fastened to a concrete foundation resting on a prepared subsurface. Rolling stock in a rail transport system generally encounters lower frictional resistance than rubber-tyred road vehicles, so passenger and freight cars (carriages and wagons) can be coupled into longer trains. The operation is carried out by a railway company, providing transport between train stations or freight customer faci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Railroad Bridges
Pennsylvania (; (Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, Maryland to its south, West Virginia to its southwest, Ohio to its west, Lake Erie and the Canadian province of Ontario to its northwest, New York to its north, and the Delaware River and New Jersey to its east. Pennsylvania is the fifth-most populous state in the nation with over 13 million residents as of 2020. It is the 33rd-largest state by area and ranks ninth among all states in population density. The southeastern Delaware Valley metropolitan area comprises and surrounds Philadelphia, the state's largest and nation's sixth most populous city. Another 2.37 million reside in Greater Pittsburgh in the southwest, centered around Pittsburgh, the state's second-largest and Western Pennsylvania's largest city. The state's subsequent five ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges In Philadelphia
Transportation in Philadelphia involves the various modes of transport within the city and its required infrastructure. In addition to facilitating intracity travel, Philadelphia's transportation system connects Philadelphia to towns of its metropolitan area and surrounding areas within the Northeast megalopolis. The city is crossed by the Delaware Expressway (Interstate 95 or I-95) and the Schuylkill Expressway (I-76), which are the principal thoroughfares for intercity traffic. The Vine Street Expressway ( I-676) travels between I-76 and I-95 in Center City Philadelphia, and the Roosevelt Boulevard (U.S. Route 1) carries crosstown traffic in northern Philadelphia. Philadelphia's public transit system is mainly operated by the Southeast Pennsylvania Transportation Authority (SEPTA), which maintains an extensive system utilizing buses, rapid transit, commuter rail, trolleys, and the Philadelphia trackless trolley (trolleybus) system. The main rail station of Philadelphia is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 1918
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 wo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia & Reading Railroad Mule Bridge
The Philadelphia & Reading Railroad Mule Bridge is a bridge spanning the Schuylkill River at the foot of Shurs Lane in Philadelphia Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Sinc ..., Pennsylvania. The bridge is significant for being one of the oldest surviving wrought iron lattice truss bridges. See also * * * * *List of bridges documented by the Historic American Engineering Record in Pennsylvania *List of crossings of the Schuylkill River References File:Mule Bridge.jpg, Another view of the bridge External links * Bridges in Philadelphia Historic American Engineering Record in Philadelphia {{DEFAULTSORT:Philadelphia and Reading Railroad Mule Bridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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