|
Lehigh Tunnel
The Lehigh Tunnel is a pair of road tunnels that carries the Pennsylvania Turnpike Northeast Extension ( Interstate 476) under Blue Mountain north from U.S. Route 22 in the Lehigh Valley to the Scranton/ Wilkes-Barre area between mileposts 70.7 to 71.5. Description Originally a single tunnel that opened to traffic in 1957, it was called the Lehigh Tunnel to avoid confusion with the existing Blue Mountain Tunnel on the mainline. The tunnel was twinned in 1991 to allow two lanes of traffic in each direction. It has an unusual appearance, as the original (northbound) tunnel is rectangular, as it used the older dig-and-blast technique, while the new tube is oval, having been constructed using the New Austrian tunnelling method. From 1980 to 1996, the Northeast Extension was designated as Pennsylvania Route 9, as opposing traffic faced each other in the single tube prior to the opening of the current southbound tube, and therefore did not qualify for Interstate highway s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lehigh County, Pennsylvania
Lehigh County (Pennsylvania Dutch: ''Lechaa Kaundi'') is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the county's population was 374,557.Lehigh County at U.S. Census Quick Facts Its county seat is , the state's third largest city after and . Lehigh County and [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnel -2 Cross Section For Preliminary Report Final 2 (27956493398)
A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube construction techniques rather than traditional tunnel boring methods. A tunnel may be for foot or vehicular road traffic, for rail traffic, or for a canal. The central portions of a rapid transit network are usually in the tunnel. Some tunnels are used as sewers or aqueducts to supply water for consumption or for hydroelectric stations. Utility tunnels are used for routing steam, chilled water, electrical power or telecommunication cables, as well as connecting buildings for convenient passage of people and equipment. Secret tunnels are built for military purposes, or by civilians for smuggling of weapons, contraband, or people. Special tunnels, such as wildlife crossings, are built to allow wildlife to cross human-made barriers sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transportation Buildings And Structures In Carbon County, Pennsylvania
Transport (in British English), or transportation (in American English), is the intentional movement of humans, animals, and goods from one location to another. Modes of transport include air, land ( rail and road), water, cable, pipeline, and space. The field can be divided into infrastructure, vehicles, and operations. Transport enables human trade, which is essential for the development of civilizations. Transport infrastructure consists of both fixed installations, including roads, railways, airways, waterways, canals, and pipelines, and terminals such as airports, railway stations, bus stations, warehouses, trucking terminals, refueling depots (including fueling docks and fuel stations), and seaports. Terminals may be used both for interchange of passengers and cargo and for maintenance. Means of transport are any of the different kinds of transport facilities used to carry people or cargo. They may include vehicles, riding animals, and pack an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
