Thomas W. Seabrook (c. 1817 – February 24, 1897) was a 19th-century American civil engineer who was most known for his work on the construction and extension of the Pennsylvania Railroad.
The United States of America (USA), commonly known as the United States or America, is a country comprising 50 states, a federal district, five major self-governing territories, and various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is slightly smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U.S. is the third most populous country. The capital is Washington, D.C., and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico. The State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean. The U.S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The extremely diverse geography, climate, and wildlife of the United States make it one of the world's 17 megadiverse countries.
A civil engineer is a person who practices civil engineering – the application of planning, designing, constructing, maintaining, and operating infrastructures while protecting the public and environmental health, as well as improving existing infrastructures that have been neglected.
The Pennsylvania Railroad was an American Class I railroad that was established in 1846 and was headquartered in Philadelphia, Pennsylvania. It was so named because it was established in the Commonwealth of Pennsylvania.
His first employment with the Pennsylvania railroad (PRR) was as an engineer locating the line of the railroad for its extension to Pittsburgh as part of the Western division of the PRR prior to the opening of the Horseshoe curve in 1854.He then was put in charge of Gallatzin tunnel construction as well as double tracking work on the eastern slope including Horseshoe curve. In 1857, he was promoted to resident engineer in charge of the railroad between Harrisburg and Pittsburgh. In 1859, Seabrook was appointed Chief Engineer of the Western Transportation Company with the responsibility of survey and construction for extending the PRR west of Pittsburgh towards Chicago. His last work for the Pennsylvania railroad was building the eastern end of the West Shore Railroad which was sold to the New York Central Railroad in 1885. He died in Philadelphia in 1897.
Horseshoe Curve is a three-track railroad curve on Norfolk Southern Railway's Pittsburgh Line in Blair County, Pennsylvania. The curve itself is about 2,375 feet (700 m) long and 1,300 feet (400 m) in diameter; it was completed in 1854 by the Pennsylvania Railroad as a way to lessen the grade to the summit of the Allegheny Mountains. It eventually replaced the time-consuming Allegheny Portage Railroad, the only other route across the mountains for large vehicles.
The Gallitzin Tunnels in Gallitzin, Pennsylvania, formed the Pennsylvania Railroad's passage through the Allegheny Mountains in western Pennsylvania. Their ownership has since passed to Penn Central Transportation Company, then to Conrail, and most recently to the Norfolk Southern Railway. East of the tunnels is the famous Horseshoe Curve. The tunnels are currently used by Norfolk Southern freight trains and Amtrak Pennsylvanian passenger trains.
The West Shore Railroad was the final name of a railroad that ran from Weehawken, New Jersey, which is across the Hudson River from New York City, north along the west shore of the river to Albany, New York and then west to Buffalo. It was organized as a competitor to the New York Central and Hudson River Railroad, but was soon taken over by that company.
The Pennsylvania Turnpike is a toll highway operated by the Pennsylvania Turnpike Commission (PTC) in the U.S. state of Pennsylvania. A controlled-access highway, it runs for 360 miles (580 km) across the state. The turnpike begins at the Ohio state line in Lawrence County, where the road continues west into Ohio as the Ohio Turnpike. It ends at the New Jersey border at the Delaware River–Turnpike Toll Bridge over the Delaware River in Bucks County, where the road continues east as the Pearl Harbor Memorial Extension of the New Jersey Turnpike.
The Allegheny Portage Railroad was the first railroad constructed through the Allegheny Mountains in central Pennsylvania, United States; it operated from 1834 to 1854 as the first transportation infrastructure through the gaps of the Allegheny that connected the midwest to the eastern seaboard across the barrier range of the Allegheny Front. Approximately 36 miles (58 km) long overall, both ends connected to the Pennsylvania Canal, and the system was primarily used as a portage railway, haulting river boats and barges over the divide between the Ohio and the Susquehanna Rivers.
A horseshoe curve is a class of climbing curve in a roadbed which reverses turn direction (inflection) twice on either side of a single tight curve that varies through an angle of about 180 degrees or more.
The New York Tunnel Extension was a major project of the Pennsylvania Railroad (PRR) at the beginning of the 20th century, to improve railroad access throughout the greater New York City area. The project comprised tunnels and approaches from New Jersey and Long Island to Midtown Manhattan, leading to the PRR's massive new station, New York Penn Station.
John Edgar Thomson was an American civil engineer and industrialist. Thomson was an entrepreneur best known for his leadership of the Pennsylvania Railroad (PRR) from 1852 until his death 1874, making it the largest business enterprise in the world and a world-class model for technological and managerial innovation. He served as PRR's first Chief Engineer and third President.
The Pittsburgh, Fort Wayne and Chicago Railway was a major part of the Pennsylvania Railroad system, extending the PRR west from Pittsburgh, Pennsylvania, via Fort Wayne, Indiana, to Chicago, Illinois. It included the current Norfolk Southern-owned Fort Wayne Line east of Crestline, Ohio, to Pittsburgh, and the Fort Wayne Secondary, owned by CSX, from Crestline west to Tolleston in Gary, Indiana. CSX leased its entire portion in 2004 to the Chicago, Fort Wayne and Eastern Railroad (CFE). The remaining portion of the line from Tolleston into Chicago is now part of the Norfolk Southern's Chicago District, with a small portion of the original PFW&C trackage abandoned in favor of the parallel lines of former competitors which are now part of the modern NS system.
The Northern Central Railway (NCRY) was a Class I Railroad connecting Baltimore, Maryland with Sunbury, Pennsylvania, along the Susquehanna River. Completed in 1858, the line came under the control of the Pennsylvania Railroad (PRR) in 1861, when the PRR acquired a controlling interest in the Northern Central's stock to compete with the rival Baltimore and Ohio Railroad (B&O). For eleven decades the Northern Central operated as a subsidiary of the PRR until much of its Maryland trackage was washed out by Hurricane Agnes in 1972; after which most of its operations ceased as the Penn Central declined to repair sections. It is now a fallen flag railway, having come under the control of the later Penn Central, Conrail, and then broken apart and disestablished. The southern part in Pennsylvania is now the York County Heritage Rail Trail which connects to a similar hike/bike trail in Northern Maryland down to Baltimore, named the Torrey C. Brown Rail Trail. Only the trackage around Baltimore remains in rail service.
The Central Railroad of Pennsylvania was a short railroad of 27.3 miles (43.9 km) built to connect Bellefonte, Pennsylvania with the Beech Creek Railroad at Mill Hall, Pennsylvania. Sustained by shipments from the Bellefonte iron industry, the abandonment of the iron furnaces there led to its demise in 1918.
The Buffalo Line is a railroad line owned by the Norfolk Southern Railway in the U.S. states of New York and Pennsylvania. The line runs from Buffalo, New York southeast to Rockville, Pennsylvania near Harrisburg, Pennsylvania along a former Pennsylvania Railroad line. Its north end is at Seneca Yard in Buffalo, with no direct access to the Lake Erie district, and its south end is at the Pittsburgh Line at Rockville. The line is operated by the Buffalo and Pittsburgh Railroad between Buffalo and Machias, New York, the Western New York and Pennsylvania Railroad between Machias and Driftwood, Pennsylvania, and the Norfolk Southern Railway between Driftwood and Rockville.
The Main Line of the Pennsylvania Railroad was a rail line in the Commonwealth of Pennsylvania, connecting Philadelphia with Pittsburgh via Harrisburg. The rail line was split into two rail lines and now all of its right of way is now a cross-state corridor, composed of Amtrak's Philadelphia to Harrisburg Main Line and the Norfolk Southern Railway's Pittsburgh Line.
Samuel Rea was an American engineer and the ninth president of the Pennsylvania Railroad from 1913 to 1925. He joined the PRR in 1871, when the railroad had hardly outgrown its 1846 charter to build from Harrisburg to Pittsburgh, and helped it grow to a 12,000-mile (19,000 km) system. His efforts helped the railroad secure access to Manhattan, upstate New York, and New England.
The Pittsburgh, Johnstown, Ebensburg and Eastern Railroad was a railroad corporation in Pennsylvania, intended to unite two local short lines in Clearfield, Blair and Cambria Counties and create a coal-hauling railroad to compete with the Pennsylvania Railroad (PRR). Highly speculative, the railroad never had the financing necessary to begin construction. Chartered in 1897, it began to lose control of the two short lines in 1900, but continued to litigate the matter until 1909. Left a paper corporation without railroad property, it was dissolved a few years later.
Wilson Brothers & Company was a prominent Victorian-era architecture and engineering firm established in Philadelphia, Pennsylvania, that was especially noted for its structural expertise. The brothers designed or contributed engineering work to hundreds of bridges, railroad stations and industrial buildings, including the principal buildings at the 1876 Centennial Exposition. They also designed churches, hospitals, schools, hotels and private residences. Among their surviving major works are the Pennsylvania Railroad, Connecting Railway Bridge over the Schuylkill River (1866–67), the main building of Drexel University (1888–91), and the train shed of Reading Terminal (1891–93), all in Philadelphia.
George Brooke Roberts was a civil engineer and the fifth president of the Pennsylvania Railroad (1880–96).
Pennsylvania Railroad, Connecting Railway Bridge is a stone arch bridge in Philadelphia, Pennsylvania, that carries Amtrak Northeast Corridor rail lines and SEPTA and NJT commuter rail lines over the Schuylkill River. It is located in Fairmount Park, just upstream from the Girard Avenue Bridge.
The Pittsburgh Line is a rail line that is located in state of the Pennsylvania and it is owned and operated by the Norfolk Southern Railway. The Pittsburgh Line is Norfolk Southern Railway's primary east–west artery in its Pittsburgh Division and Harrisburg Division across Pennsylvania and it is part of the Amtrak-Norfolk Southern combined rail corridor, the Keystone Corridor.
The Frederick and Pennsylvania Line railroad ran from Frederick, Maryland to the Pennsylvania-Maryland State line, or Mason–Dixon line near Kingsdale, Pennsylvania consisting of 28 miles (45.1 km) of center-line track and 29.93 miles (48.17 km) of total track including sidings. Chartered in 1867, the railroad started construction in 1869 and cost $868,687.50.