Transcontinental railroad
A transcontinental railroad or transcontinental railway is contiguous railroad trackage, that crosses a continental land mass and has terminals at different oceans or continental borders. Such networks can be via the tracks of either a single railroad or over those owned or controlled by multiple railway companies along a continuous route. Although Europe is crisscrossed by railways, the railroads within Europe are usually not considered transcontinental, with the possible exception of the historic Orient Express. Transcontinental railroads helped open up unpopulated interior regions of continents to exploration and settlement that would not otherwise have been feasible. In many  cases they also formed the backbones of cross-country passenger and freight transportation networks. Many of them continue to have an important role in freight transportation and some like the Trans-Siberian Railway even have passenger trains going from one end to the other. North America. United States. A transcontinental railroad in the United States is any continuous rail line connecting a location on the U.S. Pacific coast with one or more of the railroads of the nation's eastern trunk line rail systems operating between the Missouri or Mississippi Rivers and the U.S. Atlantic coast. The first concrete plan  for a transcontinental railroad in the United States was presented to Congress by Asa Whitney in 1845. A series of transcontinental railroads built over the last third of the 19th century created a nationwide transportation network that united the country by rail. The first of these, the "Pacific Railroad",was built by the Central Pacific Railroad and Union Pacific Railroad to link the San Francisco Bay at Alameda, California, with the nation's existing eastern railroad network at Council Bluffs, Iowa/Omaha, Nebraska, thereby creating the world's first transcontinental railroad when it opened in 1869. Its construction was made possible  by the US government under Pacific Railroad Acts of 1862, 1864, and 1867. Its original course was very close to current Interstate 80. Transcontinental railroad. The U.S.'s First Transcontinental Railroad was built between 1863 and 1869 to join the eastern and western halves of the United States. Begun just before the American Civil War, its construction was considered to be one of the greatest American technological feats of the 19th century. Known as the "Pacific Railroad" when it opened, this served as a vital link for trade, commerce, and travel and opened up vast regions of the North American  heartland for settlement. Shipping and commerce could thrive away from navigable watercourses for the first time since the beginning of the nation. Much of this route, especially on the Sierra grade west of Reno, Nevada, is currently used by Amtrak's "California Zephyr", although many parts have been rerouted. The transcontinental railroad provided fast, safe, and cheap travel. The fare for a one-week trip from Omaha to San Francisco on an emigrant sleeping car was about $65 for an adult. It replaced most of the far slower and more hazardous stagecoach lines and wagon trains. The number of  emigrants taking the Oregon and California Trails declined dramatically. The sale of the railroad land grant lands and the transport provided for timber and crops led to the rapid settling of the "Great American Desert". The Union Pacific recruited laborers from Army veterans and Irish immigrants, while most of the engineers were ex-Army men who had learned their trade keeping the trains running during the American Civil War. The Central Pacific Railroad faced a labor shortage in the more sparsely settled West. It recruited Cantonese laborers in China, who built the line over and through the Sierra Nevada mountains  and then across Nevada to their meeting in northern Utah. Chinese workers made up ninety percent of the workforce on the line. The Gould System. George J. Gould attempted to assemble a truly transcontinental system in the 1900s. The line from San Francisco, California, to Toledo, Ohio, was completed in 1909, consisting of the Western Pacific Railway, Denver and Rio Grande Railroad, Missouri Pacific Railroad, and Wabash Railroad. Beyond Toledo, the planned route would have used the Wheeling and Lake Erie Railroad (1900), Wabash Pittsburgh Terminal Railway, Little Kanawha Railroad, West Virginia Central and Pittsburgh Railway, Western Maryland Railroad, and  Philadelphia and Western Railway, but the Panic of 1907 strangled the plans before the Little Kanawha section in West Virginia could be finished. The Alphabet Route was completed in 1931, providing the portion of this line east of the Mississippi River. With the merging of the railroads, only the Union Pacific Railroad and the BNSF Railway remain to carry the entire route. Canada. The completion of Canada's first transcontinental railway with the driving of the Last Spike at Craigellachie, British Columbia, on November 7, 1885, is an important milestone in Canadian history. Between 1881 and 1885, the Canadian Pacific  Railway (CPR) completed a line that spanned from the port of Montreal to the Pacific coast, fulfilling a condition of British Columbia's 1871 entry into the Canadian Confederation. The City of Vancouver, incorporated in 1886, was designated the western terminus of the line. The CPR became the first transcontinental railway company in North America in 1889 after its International Railway of Maine opened, connecting CPR to the Atlantic coast. The construction of a transcontinental railway strengthened the connection of British Columbia and the Northwest Territories to Canada they had recently joined, and acted as a bulwark against potential incursions  by the United States. Subsequently, two other transcontinental lines were built in Canada: the Canadian Northern Railway (CNoR) opened another line to the Pacific in 1912, and the combined Grand Trunk Pacific Railway (GTPR)/National Transcontinental Railway (NTR) system opened in 1917 following the completion of the Quebec Bridge, although its line to the Pacific opened in 1914. The CNoR, GTPR, and NTR were nationalized to form the Canadian National Railway, which currently is now Canada's largest transcontinental railway, with lines running all the way from the Pacific Coast to the Atlantic Coast. Central America (inter-oceanic lines). Panama (South  America). The first railroad to directly connect two oceans (although not by crossing a broad "continental" land mass) was the Panama Rail Road. Opened in 1855, this line was designated instead as an "inter-oceanic" railroad crossing Country at its narrowest point, the Isthmus of Panama, when that area was still part of Colombia. (Panama split off from Colombia in 1903 and became the independent Republic of Panama). By spanning the isthmus, the line thus became the first railroad to completely cross any part of the Americas and physically connect ports on the Atlantic and Pacific Oceans. Given the tropical  rain forest environment, the terrain, and diseases such as malaria and cholera, its completion was a considerable engineering challenge. The construction took five years after ground was first broken for the line in May, 1850, cost eight million dollars, and required more than seven thousand workers drawn from "every quarter of the globe." This railway was built to provide a shorter and more secure path between the United States' East and West Coasts. This need was mainly triggered by the California Gold Rush. Over the years the railway played a key role in the construction and the subsequent operation of  the Panama Canal, due to its proximity to the canal. Currently, the railway operates under the private administration of the Panama Canal Railroad Company, and its upgraded capacity complements the cargo traffic through the Panama Canal. Guatemala. A second Central American inter-oceanic railroad began operation in 1908 as a connection between Puerto San José and Puerto Barrios in Guatemala, but ceased passenger service to Puerto San José in 1989. Costa Rica. A third Central American inter-oceanic railroad began operation in 1910 as a connection between Puntarenas and Limón in gauge. It currently (2019) sees no passenger service. South  America. There is activity to revive the connection between Valparaíso and Santiago in Chile and Mendoza, Argentina, through the "Transandino" project. Mendoza has an active connection to Buenos Aires. The old Transandino began in 1910 and ceased passenger service in 1978 and freight 4 years later. Technically a complete transcontinental link exists from Arica, Chile, to La Paz, Bolivia, to Buenos Aires, but this trans-Andean crossing is for freight only. On December 6, 2017 the Brazilian President Michel Temer and his Bolivian counterpart Morales signed an agreement for an Atlantic - Pacific railway. The construction will start in 2019 and  will be finished in 2024. The new railway is planned to be 3750 km in length. There are two possible tracks in discussion: Both have an Atlantic end in Santos, Brazil but the Pacific ends are in Ilo, Peru and Matarani, Peru. Another longer Transcontinental freight-only railroad linking Lima, Peru, to Rio de Janeiro, Brazil is under development.