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David McCullough Bridge
The David McCullough Bridge, commonly and historically known as the 16th Street Bridge, is a steel trussed through arch bridge that spans the Allegheny River in Pittsburgh, Pennsylvania. The 16th Street Bridge replaced the Mechanics Street Bridge which had been completed at the behest of the State of Pennsylvania in 1838. The 16th Street Bridge was constructed in 1922 with a length of and a width of . The bridge was listed on the National Register of Historic Places in 1979. The 16th Street Bridge is one of the more popular bridges in the city of Pittsburgh and provides easy access to the Strip District and the North Shore. Days after the disastrous St. Patrick's Day Flood of 1936, reports spread on March 20 that the bridge had collapsed from the pressure of the receding flood waters and debris, prompting Pittsburgh Police Chief Jacob Dorsey to close all city bridges for fear of receding waters and debris weakening or collapsing them. However, the reports were soon disco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allegheny County, Pennsylvania
Allegheny County () is a county in the Commonwealth of Pennsylvania. It is located in Southwestern Pennsylvania. As of the 2020 census, the population was 1,250,578, making it the state's second-most populous county, following Philadelphia County. The county seat is Pittsburgh. Allegheny County is included in the Pittsburgh, PA Metropolitan Statistical Area, and in the Pittsburgh Designated Market Area. Allegheny was the first county in Pennsylvania to be given a Native American name. It was named after the Lenape word for the Allegheny River. The meaning of "Allegheny" is uncertain. It is usually said to mean "fine river". Stewart says that the name may come from a Lenape account of an ancient mythical tribe called ''"Allegewi"'', who lived along the river before being taken over by the Lenape. History Prior to European contact, this area was settled for thousands of years by succeeding cultures of indigenous peoples. During the colonial era, historic native groups kno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places Listings In Pittsburgh, Pennsylvania
The following properties are listed on the National Register of Historic Places in Pittsburgh, Pennsylvania. This is intended to be a complete list of the properties and districts on National Register of Historic Places in the city of Pittsburgh, Pennsylvania, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in an online map. There are 254 properties and districts listed on the National Register in the county, including 10 National Historic Landmarks. Pittsburgh is the location of 182 of these properties and districts, including 5 National Historic Landmarks, which are listed here. The properties and districts elsewhere in the county, including 5 National Historic Landmarks, are listed separately. Four properties are split between Pittsburgh and other parts of the county. Current listings ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pittsburgh History & Landmarks Foundation Historic Landmarks
Pittsburgh ( ) is a city in the Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County. It is the most populous city in both Allegheny County and Western Pennsylvania, the second-most populous city in Pennsylvania behind Philadelphia, and the 68th-largest city in the U.S. with a population of 302,971 as of the 2020 census. The city anchors the Pittsburgh metropolitan area of Western Pennsylvania; its population of 2.37 million is the largest in both the Ohio Valley and Appalachia, the second-largest in Pennsylvania, and the 27th-largest in the U.S. It is the principal city of the greater Pittsburgh–New Castle–Weirton combined statistical area that extends into Ohio and West Virginia. Pittsburgh is located in southwest Pennsylvania at the confluence of the Allegheny River and the Monongahela River, which combine to form the Ohio River. Pittsburgh is known both as "the Steel City" for its more than 300 steel-related businesses and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Towers In Pennsylvania
A tower is a tall structure, taller than it is wide, often by a significant factor. Towers are distinguished from masts by their lack of guy-wires and are therefore, along with tall buildings, self-supporting structures. Towers are specifically distinguished from buildings in that they are built not to be habitable but to serve other functions using the height of the tower. For example, the height of a clock tower improves the visibility of the clock, and the height of a tower in a fortified building such as a castle increases the visibility of the surroundings for defensive purposes. Towers may also be built for observation, leisure, or telecommunication purposes. A tower can stand alone or be supported by adjacent buildings, or it may be a feature on top of a larger structure or building. Etymology Old English ''torr'' is from Latin ''turris'' via Old French ''tor''. The Latin term together with Greek τύρσις was loaned from a pre-Indo-European Mediterranean language, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Through Arch Bridges In The United States
Prepositions and postpositions, together called adpositions (or broadly, in traditional grammar, simply prepositions), are a class of words used to express spatial or temporal relations (''in'', ''under'', ''towards'', ''before'') or mark various semantic roles (''of'', ''for''). A preposition or postposition typically combines with a noun phrase, this being called its complement, or sometimes object. A preposition comes before its complement; a postposition comes after its complement. English generally has prepositions rather than postpositions – words such as ''in'', ''under'' and ''of'' precede their objects, such as ''in England'', ''under the table'', ''of Jane'' – although there are a few exceptions including "ago" and "notwithstanding", as in "three days ago" and "financial limitations notwithstanding". Some languages that use a different word order have postpositions instead, or have both types. The phrase formed by a preposition or postposition together with its comp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 1923
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] |
Road Bridges On The National Register Of Historic Places In Pennsylvania
A road is a linear way for the conveyance of traffic that mostly has an improved surface for use by vehicles (motorized and non-motorized) and pedestrians. Unlike streets, the main function of roads is transportation. There are many types of roads, including parkways, avenues, controlled-access highways (freeways, motorways, and expressways), tollways, interstates, highways, thoroughfares, and local roads. The primary features of roads include lanes, sidewalks (pavement), roadways (carriageways), medians, shoulders, verges, bike paths (cycle paths), and shared-use paths. Definitions Historically many roads were simply recognizable routes without any formal construction or some maintenance. The Organization for Economic Co-operation and Development (OECD) defines a road as "a line of communication (travelled way) using a stabilized base other than rails or air strips open to public traffic, primarily for the use of road motor vehicles running on their own wheels", which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Over The Allegheny 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 Pittsburgh
The Bridges of Pittsburgh play an important role in the city's transportation system. Without bridges, the Pittsburgh region would be a series of fragmented valleys, hillsides, river plains, and isolated communities. A 2006 study determined that, at the time, Pittsburgh had 446 bridges. With its proximity to three major rivers and countless hills and ravines, Pittsburgh is known as ''"The City of Bridges"''. History Pittsburgh's first river bridges, made of wood and long since replaced, opened in 1818 at Smithfield Street and 1819 at Sixth Street (then St. Clair Street). The city's oldest in-service bridge is the current Smithfield Street Bridge, which opened in 1883; it was designated a National Historic Landmark in 1976. Pittsburgh waged a massive road and bridge building campaign from 1924 to 1940; most of Pittsburgh's oldest major bridges date from this period. The coming of the Interstate Highway System triggered more construction in the second half of the twentieth centur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
I-579
Interstate 579 (I-579) is a north–south Interstate Highway entirely within Pittsburgh, Pennsylvania. The highway is long. I-579 is also known as the Crosstown Boulevard since it crosses the backside of Downtown Pittsburgh. The northern terminus of I-579 is at I-279 beyond the north end of the Veterans Bridge; the southern terminus splits to the Liberty Bridge southbound and Boulevard of the Allies eastbound, which leads to I-376 east. The intersection of I-579 and I-279 is in one direction only; northbound traffic on I-579 can proceed only northbound on I-279 while only southbound traffic on I-279 can exit onto I-579. I-579 allows Liberty Bridge traffic easy access to I-279, and I-279 southbound traffic easier access to PPG Paints Arena, downtown, and eastern regions of the city, while I-279 southbound continues to Heinz Field, PNC Park, and to westbound I-376 which leads to Pittsburgh International Airport. Route description I-579 begins at an interchange with Pennsylv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Veterans Bridge (Pittsburgh)
The Veterans Bridge is a steel and welded girder bridge that carries Interstate 579 over the Allegheny River in Pittsburgh, Pennsylvania. Completed in 1988 it cost $420 million (or $ in terms). It opened on November 11, 1988 complete with 107th National Guard howitzers firing ceremoniously from the deck, as the last link in I-579. The bridge, in length, has a main span of and is above the water. The roadway atop the structure is seven lanes wide, with six lanes dedicated to northbound and southbound traffic (three per direction) and one lane designed for reversible High Occupancy Vehicle (HOV-2) movements. The bridge is also designated "pghe585-17". See also * * * * List of crossings of the Allegheny River References See also *List of crossings of the Allegheny River This is a list of current bridges and other crossings of the Allegheny River starting from Pittsburgh, Pennsylvania, where it joins the Monongahela to form the Ohio River. Crossings Pennsylvania ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herr's Island Railroad Bridge
The Herr's Island Railroad Bridge, also known as the West Penn Railroad Bridge, is a truss bridge across the Allegheny River in the United States between the Pittsburgh neighborhoods of Troy Hill and Herrs Island (commonly referred to as Washington's Landing). History The bridge was built in 1890 by the Western Pennsylvania Railroad (West Penn) to gain access to Herr's Island. It left the main line on the mainland by means of a curving red brick viaduct and three plate girder spans over River Avenue and the B&O before crossing the back channel on a Whipple truss to reach the stockyards and warehouses on the island. In 1903, the West Penn was purchased by the Pennsylvania Railroad, becoming the Western Penn branch. The bridge was strengthened and raised later in the same year to match the raised land level on the island. Between 1970 and 1990, the brick viaduct and three plate girder spans were removed. In 1999, about a decade after the redevelopment of the island with condomini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
