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Dunlap's Creek Bridge
__NOTOC__ Dunlap's Creek Bridge was the first arch bridge in the United States built of cast iron. It was designed by Richard Delafield and built by the United States Army Corps of Engineers. Constructed from 1836 to 1839 on the National Road in Brownsville, Pennsylvania, it remains in use today. It is listed on the National Register of Historic Places and is a National Historic Civil Engineering Landmark (1978). It is located in the Brownsville Commercial Historic District and supports Market Street, the local main thoroughfare. Due to the steep sides of the Monongahela River valley, there is only room for two short streets parallel to the river's shore and graded mild enough to be comfortable to walk before the terrain rises too steeply for business traffic. History There have been four structures on this site. The first two collapsed in 1808 and 1820. The third, a wood-framed structure, needed replacement by 1832. This bridge is constructed using five parallel tubular ribs, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Road
The National Road (also known as the Cumberland Road) was the first major improved highway in the United States built by the Federal Government of the United States, federal government. Built between 1811 and 1837, the road connected the Potomac River, Potomac and Ohio Rivers and was a main transport path to the Western United States, West for thousands of settlers. When improved in the 1830s, it became the second U.S. road surfaced with the macadam process pioneered by Scotsman John Loudon McAdam. Construction began heading west in 1811 at Cumberland, Maryland, on the Potomac River. After the panic of 1837, Financial Panic of 1837 and the resulting economic depression, congressional funding ran dry and construction was stopped at Vandalia, Illinois, the then-capital of Illinois, northeast of St. Louis, Missouri, St. Louis across the Mississippi River. The road has also been referred to as the Cumberland Turnpike, the Cumberland–Brownsville Turnpike (or Road or Pike), the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bridges Documented By The Historic American Engineering Record In Pennsylvania ...
__NOTOC__ This is a list of bridges documented by the Historic American Engineering Record in the U.S. state of Pennsylvania. Bridges See also * List of tunnels documented by the Historic American Engineering Record in Pennsylvania Notes References External links {{HAER list, structure=bridge *List *Bridges Pennsylvania Bridges Bridges 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 someth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Bridges In The United States
Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in front of oxygen (32.1% and 30.1%, respectively), forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. In its metallic state, iron is rare in the Earth's crust, limited mainly to deposition by meteorites. Iron ores, by contrast, are among the most abundant in the Earth's crust, although extracting usable metal from them requires kilns or furnaces capable of reaching or higher, about higher than that required to smelt copper. Humans started to master that process in Eurasia during the 2nd millennium BCE and the use of iron tools and weapons began to displace copper alloys, in some regions, only around 1200 BCE. That event is considered the transition from the Bronze Age to the Iron Age. In t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Fayette County, Pennsylvania
Fayette County is a county in the Commonwealth of Pennsylvania. It is located in southwestern Pennsylvania, adjacent to Maryland and West Virginia. As of the 2020 census, the population was 128,804. Its county seat is Uniontown. The county was created on September 26, 1783, from part of Westmoreland County and named after the Marquis de Lafayette. Fayette County is part of the Pittsburgh, PA Metropolitan Statistical Area. The southern border of Fayette County is the southern border of Pennsylvania at both the Pennsylvania–Maryland state line (the Mason–Dixon line) and the Pennsylvania–West Virginia state line. History The first Europeans in Fayette County were explorers, who had used an ancient American Indian trail that bisected the county on their journey across the Appalachian Mountains. In 1754, when control of the area was still in dispute between France and Great Britain, 22-year-old George Washington fought against the French at the Battle of Jumonville Glen an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Register Of Historic Places In Fayette County, Pennsylvania
This is a list of the National Register of Historic Places listings in Fayette County, Pennsylvania. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Fayette County, 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 a map. There are 68 properties and districts listed on the National Register in the county. Four sites are further designated as National Historic Landmarks. One is also designated as a National Historic Site and another is designated as a National Battlefield. Current listings See also * National Register of Historic Places listings in Pennsylvania * List of National Historic Landmarks in Pennsylvania This is a List of National Historic Landmarks in Pennsylvania. There are 169 in the state. L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historic Civil Engineering Landmarks
__NOTOC__ The following is a list of Historic Civil Engineering Landmarks as designated by the American Society of Civil Engineers since it began the program in 1964. The designation is granted to projects, structures, and sites in the United States (National Historic Civil Engineering Landmarks) and the rest of the world (International Historic Civil Engineering Landmarks). As of 2019, there are over 280 landmarks that have been approved by the ASCE Board of Direction. Sections or chapters of the American Society of Civil Engineers may also designate state or local landmarks within their areas; those landmarks are not listed here. See also *[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Historic American Engineering Record In Pennsylvania
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] |
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 In Fayette 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] |
List Of Historic Civil Engineering Landmarks
__NOTOC__ The following is a list of Historic Civil Engineering Landmarks as designated by the American Society of Civil Engineers since it began the program in 1964. The designation is granted to projects, structures, and sites in the United States (National Historic Civil Engineering Landmarks) and the rest of the world (International Historic Civil Engineering Landmarks). As of 2019, there are over 280 landmarks that have been approved by the ASCE Board of Direction. Sections or chapters of the American Society of Civil Engineers may also designate state or local landmarks within their areas; those landmarks are not listed here. See also *[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Registered Historic Places In Fayette County, Pennsylvania
This is a list of the National Register of Historic Places listings in Fayette County, Pennsylvania. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Fayette County, 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 a map. There are 68 properties and districts listed on the National Register in the county. Four sites are further designated as National Historic Landmarks. One is also designated as a National Historic Site and another is designated as a National Battlefield. Current listings See also * National Register of Historic Places listings in Pennsylvania * List of National Historic Landmarks in Pennsylvania * List of Pennsylvania state historical markers in Fayette County __NOTOC__ This is a list o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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