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Beacon Hill Tunnel (Seattle, Washington)
Beacon Hill tunnel is a public transit tunnel in Seattle, Washington, carrying light rail trains on the 1 Line under Seattle's Beacon Hill between Rainier Valley and SoDo just east of Interstate 5. The Beacon Hill Link Light Rail station is approximately underground near the midpoint of the tunnel. Construction Construction of the tunnel began in March 2005 and was completed in July 2009. Obayashi Corporation was the general contractor. The twin running tunnels were excavated with a tunnel boring machine (TBM) built by Mitsubishi, named the "Emerald Mole." The station and crossover tunnels were constructed using the sequential excavation method (SEM), also known as the New Austrian tunnelling method The new Austrian tunneling method (NATM), also known as the sequential excavation method (SEM) or sprayed concrete lining method (SCL), is a method of modern tunnel design and construction employing sophisticated monitoring to optimize various wa ... (NATM). Several worke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interstate 5
Interstate 5 (I-5) is the main north–south Interstate Highway System, Interstate Highway on the West Coast of the United States, running largely parallel to the Pacific coast of the contiguous U.S. from Mexico to Canada. It travels through the states of California, Oregon, and Washington (state), Washington, serving several large cities on the West Coast, including San Diego, Los Angeles, Sacramento, California, Sacramento, Portland, Oregon, Portland, and Seattle. It is the only continuous Interstate highway to touch both the Mexico–United States border, Mexican and Canada–United States border, Canadian borders. Upon crossing the Mexican border at its southern terminus, the highway continues to Tijuana, Baja California, as Mexican Federal Highway 1 (Fed. 1). Upon crossing the Canadian border at its northern terminus, it continues to Vancouver as British Columbia Highway 99 (BC 99). I-5 was originally created in 1956 as part of the Interstate Highw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Light Rail
Light rail (or light rail transit, abbreviated to LRT) is a form of passenger urban rail transit that uses rolling stock derived from tram technology National Conference of the Transportation Research Board while also having some features from heavy rapid transit. The term was coined in 1972 in the United States as an English equivalent for the German word ''Stadtbahn'', meaning "city railway". From: 9th National Light Rail Transit Conference Different definitions exist in some countries, but in the United States, light rail operates primarily along exclusive Right_of_way#Rail_right_of_way, rights-of-way and uses either individual tramcars or multiple units coupled together, with a lower capacity and speed than a long heavy rail passenger train or rapid transit system. Narrowly defined, light rail transit uses rolling stock that is similar to that of a traditional tram, while operating at a higher capacity and speed, often on an exclusive right-of-way. In broader usage, light ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnels Completed In 2009
A tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals common at each end, though there may be access and ventilation openings at various points along the length. A pipeline differs significantly from 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.Salazar, Waneta. ''Tunnels in Civil Engineering''. Delhi, India : Whit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railroad Tunnels In Seattle
Rail transport (also known as train transport) is a means of transport using wheeled vehicles running in tracks, which usually consist of two parallel steel rails. Rail transport is one of the two primary means of land transport, next to road transport. It is used for about 8% of passenger and freight transport globally, thanks to its energy efficiency and potentially high speed.Rolling stock on rails generally encounters lower frictional resistance than rubber-tyred road vehicles, allowing rail cars to be coupled into longer trains. Power is usually provided by diesel or electric locomotives. While railway transport is capital-intensive and less flexible than road transport, it can carry heavy loads of passengers and cargo with greater energy efficiency and safety. Precursors of railways driven by human or animal power have existed since antiquity, but modern rail transport began with the invention of the steam locomotive in the United Kingdom at the beginning of the 19th c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Austrian Tunnelling Method
The new Austrian tunneling method (NATM), also known as the sequential excavation method (SEM) or sprayed concrete lining method (SCL), is a method of modern tunnel design and construction employing sophisticated monitoring to optimize various wall reinforcement techniques based on the type of rock encountered as tunneling progresses. This technique first gained attention in the 1960s based on the work of Ladislaus von Rabcewicz, Leopold Müller, and Franz Pacher between 1957 and 1965 in Austria. The name NATM was intended to distinguish it from earlier methods, with its economic advantage of employing inherent geological strength available in the surrounding rock mass to stabilize the tunnel wherever possible rather than reinforcing the entire tunnel. NATM/SEM is generally thought to have helped revolutionise the modern tunneling industry. Many modern tunnels have used this excavation technique. The Sequential Excavation Method is very cost effective, even in karst conditions ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnel Boring Machine
A tunnel boring machine (TBM), also known as a "mole" or a "worm", is a machine used to excavate tunnels. TBMs are an alternative to drilling and blasting methods and "hand mining", allowing more rapid excavation through hard rock, wet or dry soil, or sand (although each requires specialized TBM technologies). TBM-bored tunnel cross-sections extend up to (through June 2023). TBM tunnels are typically circular in cross-section, but may also be square or rectangular, or U- or horseshoe-shaped. Much narrower tunnels are typically bored using trenchless construction methods or horizontal directional drilling rather than by TBMs. TBMs limit disturbance to the surrounding ground and produce a smooth tunnel wall, which reduces the cost of lining the tunnel; it also allows for tunneling in urban areas. Large TBMs are expensive and challenging to construct and transport, fixed costs which become less significant for longer tunnels. Tunneling speeds generally decline as tunnel size in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Obayashi Corp , a railway station in Takarazuka, Hyōgo Prefecture, Japan
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Obayashi may refer to: *Obayashi Corporation, one of five major Japanese construction companies * Obayashi (surname), a Japanese surname *Obayashi Station is a passenger railway station located in the city of Takarazuka Hyōgo Prefecture, Japan. It is operated by the private transportation company Hankyu Railway. Lines Obayashi Station is served by the Hankyu Imazu Line, and is located 2.8 kil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beacon Hill (Link Station)
Beacon Hill may refer to: Places Canada * Beacon Hill, Ottawa, Ontario, a neighbourhood * Beacon Hill Park, a park in Victoria, British Columbia * Beacon Hill, Saskatchewan, an unincorporated community * Beacon Hill, Montreal, a neighbourhood in Beaconsfield, Quebec United Kingdom England * Beacon Hill, Buckinghamshire, a village in Buckinghamshire * Beacon Hill, Frodsham, Frodsham, Cheshire * Beacon Hill or Fell, or Penrith Beacon, Penrith, Cumbria * Beacon Hill, Paignton, the highest point in the unitary authority of Torbay, Devon * Beacon Hill transmitting station, radio and television transmitters located at Beacon Hill, Marldon, Devon * Beacon Hill, Dorset, in the hinterland of Poole, Dorset * Beacon Hill, East Sussex, a Local Nature Reserve in Brighton * Beacon Hill, Burghclere, Hampshire, a hill fort, Hampshire * Beacon Hill, Warnford, Hampshire * Beacon Hill, Lancashire, the location of Jubilee Tower overlooking Darwen, Lancashire * Beacon Hill, Leicestershire, a country ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beacon Hill, Seattle, Washington
Beacon Hill is a hill and neighborhood in southeastern Seattle, Washington. It is roughly bounded on the west by Interstate 5, on the north by Interstate 90, on the east by Rainier Avenue South, Cheasty Boulevard South, and Martin Luther King Junior Way South, and on the south by the Seattle city boundary. It is part of Seattle's South End. The neighborhood has a major population of Asian Americans and African Americans and is among the most racially diverse in Seattle. It was formerly home to the world headquarters of Amazon (at the Pacific Tower) and present home to the Seattle Division of the Department of Veterans Affairs' Puget Sound Health Care System. Geography Beacon Hill offers views of downtown, the Industrial District, Elliott Bay, First Hill, Rainier Valley, and, when the weather is good, Mount Rainier and the Olympic Mountains. It is roughly bounded on the west by Interstate 5, on the north by Interstate 90, on the east by Rainier Avenue South, Cheasty Boulevar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunnel
A tunnel is an underground or undersea passageway. It is dug through surrounding soil, earth or rock, or laid under water, and is usually completely enclosed except for the two portals common at each end, though there may be access and ventilation openings at various points along the length. A pipeline differs significantly from 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.Salazar, Waneta. ''Tunnels in Civil Engineering''. Delhi, India : Wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seattle
Seattle ( ) is the most populous city in the U.S. state of Washington and in the Pacific Northwest region of North America. With a population of 780,995 in 2024, it is the 18th-most populous city in the United States. The city is the county seat of King County, the most populous county in Washington. The Seattle metropolitan area's population is 4.02 million, making it the 15th-most populous in the United States. Its growth rate of 21.1% between 2010 and 2020 made it one of the country's fastest-growing large cities. Seattle is situated on an isthmus between Puget Sound, an inlet of the Pacific Ocean, and Lake Washington. It is the northernmost major city in the United States, located about south of the Canadian border. A gateway for trade with East Asia, the Port of Seattle is the fourth-largest port in North America in terms of container handling . The Seattle area has been inhabited by Native Americans (such as the Duwamish, who had at least 17 villages a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Public Transit
Public transport (also known as public transit, mass transit, or simply transit) are forms of transport available to the general public. It typically uses a fixed schedule, route and charges a fixed fare. There is no rigid definition of which kinds of transport are included, and air travel is often not thought of when discussing public transport—dictionaries use wording like "buses, trains, etc." Examples of public transport include city buses, trolleybuses, trams (or light rail) and passenger trains, rapid transit (metro/subway/underground, etc.) and ferries. Public transport between cities is dominated by airlines, coaches, and intercity rail. High-speed rail networks are being developed in many parts of the world. Most public transport systems run along fixed routes with set embarkation/disembarkation points to a prearranged timetable, with the most frequent services running to a headway (e.g., "every 15 minutes" as opposed to being scheduled for a specific ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
