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George C. Platt Bridge
The George C. Platt Memorial Bridge is a through truss bridge that carries PA 291 (Penrose Avenue) over the Schuylkill River in Southwest Philadelphia, Pennsylvania. It was opened to traffic in 1951, replacing a swing bridge to the south which carried Penrose Ferry Road across the river. Originally called the Penrose Avenue Bridge, it was renamed in 1979 to honor Civil War hero George Crawford Platt (1842–1912). Today, the Platt Bridge is a key arterial route which carries an average of 56,000 vehicles daily. In 1967, a steel dividing wall was installed to separate eastbound from westbound traffic lanes. The lack of a barrier led to more than 30 head-on collisions on the bridge between 1964 and 1967. The coming wall was announced by the State Highway Department on November 15, 1967. The bridge passes over an oil refinery (originally owned by Gulf Oil, then by Sun Oil, now by Philadelphia Energy Solutions). Fires at the refinery have several times imperiled the bridge a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schuylkill River
The Schuylkill River ( , ) is a river running northwest to southeast in eastern Pennsylvania. The river was improved by navigations into the Schuylkill Canal, and several of its tributaries drain major parts of Pennsylvania's Coal Region. It flows for U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , accessed April 1, 2011 from Pottsville to Philadelphia, where it joins the Delaware River as one of its largest tributaries. In 1682, William Penn chose the left bank of the confluence upon which he founded the planned city of Philadelphia on lands purchased from the native Delaware nation. It is a designated Pennsylvania Scenic River, and its whole length was once part of the Delaware people's southern territories. The river's watershed of about lies entirely within the state of Pennsylvania, the upper portions in the Ridge-and-valley Appalachian Mountains where the folding of the mountain ridges metamorphically modified bit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Relief
Relief is a sculptural method in which the sculpted pieces are bonded to a solid background of the same material. The term ''relief'' is from the Latin verb ''relevo'', to raise. To create a sculpture in relief is to give the impression that the sculpted material has been raised above the background plane. When a relief is carved into a flat surface of stone (relief sculpture) or wood (relief carving), the field is actually lowered, leaving the unsculpted areas seeming higher. The approach requires a lot of chiselling away of the background, which takes a long time. On the other hand, a relief saves forming the rear of a subject, and is less fragile and more securely fixed than a sculpture in the round, especially one of a standing figure where the ankles are a potential weak point, particularly in stone. In other materials such as metal, clay, plaster stucco, ceramics or papier-mâché the form can be simply added to or raised up from the background. Monumental bronze reliefs a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 1949
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] |
Truss Bridges In The United States
A truss is an assembly of ''members'' such as beams, connected by ''nodes'', that creates a rigid structure. In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assemblage as a whole behaves as a single object". A "two-force member" is a structural component where force is applied to only two points. Although this rigorous definition allows the members to have any shape connected in any stable configuration, trusses typically comprise five or more triangular units constructed with straight members whose ends are connected at joints referred to as ''nodes''. In this typical context, external forces and reactions to those forces are considered to act only at the nodes and result in forces in the members that are either tensile or compressive. For straight members, moments (torques) are explicitly excluded because, and only because, all the joints in a truss are treated as revolutes, as is necessary for t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Over The Schuylkill River
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] |
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] |
I-95
Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from US Route 1 (US 1) in Miami, Florida, to the Houlton–Woodstock Border Crossing between Maine and the Canadian province of New Brunswick. The highway largely parallels the Atlantic coast and US 1, except for the portion between Savannah, Georgia, and Washington DC and the portion between Portland and Houlton in Maine, both of which follow a more direct inland route. I-95 serves as the principal road link between the major cities of the Eastern Seaboard. Major metropolitan areas along its route include Miami, Jacksonville, Savannah, Florence, Fayetteville, and Richmond in the Southeast; Washington, Baltimore, Wilmington and Philadelphia, Newark, and New York City in the Mid-Atlantic; and New Haven, Providence, Boston, Portsmouth, and Portland in New England. The Charleston, Wilmington, and Norfolk–Virginia Beach metropolitan are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Girard Point Bridge
The Girard Point Bridge is a double-decked cantilevered truss bridge carrying Interstate 95 across the Schuylkill River in the American city of Philadelphia, Pennsylvania. The bridge was opened in 1973. It is the last crossing of the Schuylkill River, which empties into the Delaware River less than half a mile downstream. It has an has an average of 148,500 vehicles per day, including 6% truck traffic. History * A bridge similar to this appears in '' Need for Speed: Most Wanted '', except it is designed to resemble the Tobin Bridge in Boston and the San Francisco–Oakland Bay Bridge's old cantilever span. Construction and renovation in 2010 and 2011 The Pennsylvania Department of Transportation selected Buckley and Co. as the main contractor and a joint venture between Alpha-Liberty Painting as the paint contractor. The bridge deck was milled and a new surface was poured and the structural steel was painted in order to extend the life of the steel. Work finishe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passyunk Avenue Bridge
The Passyunk Avenue Bridge is an American, double leaf bascule bridge that spans the Schuylkill River between South Philadelphia and the Southwest Philadelphia sections of the city of Philadelphia in the Commonwealth of Pennsylvania. History and architectural features The current bridge was completed in 1983. It was built on an alignment slightly to the north of its predecessor, a two-lane double-leaf bascule bridge that dated to 1911. See also * George C. Platt Bridge * List of crossings of the Schuylkill River *Passyunk Township, Pennsylvania Passyunk Township (Lenape language, Lenape ''Pahsayunk'' 'in the valley' from ''pahsaek'' 'valley') is a defunct Township (Pennsylvania), township that was located in Philadelphia County, Pennsylvania, United States. The township ceased to exist a ... * University Avenue Bridge, another bascule bridge in Philadelphia Gallery File:Passyunk Avenue Bridge1.jpg, Passyunk Avenue Bridge from junkyard view References Bascule bridg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Crossings Of The Schuylkill River
This is a list of bridges and other crossings of the Schuylkill River, from the Delaware River upstream to the source. All locations are in Pennsylvania. Crossings See also * * * References {{Reflist Schuylkill River The Schuylkill River ( , ) is a river running northwest to southeast in eastern Pennsylvania. The river was improved by navigations into the Schuylkill Canal, and several of its tributaries drain major parts of Pennsylvania's Coal Region. It fl ... Schuylkill * Schuylkill ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania Department Of Transportation
The Pennsylvania Department of Transportation (PennDOT) oversees transportation issues in the Commonwealth of Pennsylvania. The administrator of PennDOT is the Pennsylvania Secretary of Transportation, currently Yassmin Gramian. Presently, PennDOT supports over of state roads and highways, about 25,000 bridges, as well as new roadway construction, the exception being the Pennsylvania Turnpike Commission, although they currently follow PennDOT policies and procedures. In addition, other modes of transportation are supervised or supported by PennDOT. These include aviation, Railroad, rail traffic, mass transit, intrastate highway shipping traffic, motor vehicle safety & licensing, and Driver's license, driver licensing. PennDOT also supports the Ports of Philadelphia, Pittsburgh, and Erie, Pennsylvania, Erie. The current budget is approximately $3.8 billion in federal and state funds. The state budget is supported by the motor vehicle fuels tax which is dedicated solely to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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