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Through Arch
A through arch bridge, also known as a through-type arch bridge, is a bridge that is made from materials such as steel or reinforced concrete, in which the base of an arch structure is below the deck but the top rises above it. It can either be lower bearing or mid-bearing. Thus, the deck is within the arch, and cables or beams that are in tension suspend the central part of the deck from the arch. Function For a specific construction method, especially for masonry arches, the proportions of the arch remain similar no matter what the size: wider arches are thus required to be taller arches. For a semi-circular arch, the height is half of the span. Bridges across deep, narrow gorges can have their arch placed entirely beneath a flat roadway, but bridges in flatter country rise above their road approaches. A wide bridge may require an arch so tall as to become a significant obstacle and incline for the roadway. Small bridges can be hump-backed, but larger bridges such as the Old ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arch Bridge
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its structural load, loads partially into a horizontal thrust restrained by the abutments at either side, and partially into a vertical load on the arch supports. A viaduct (a long bridge) may be made from a series of arches, although other more economical structures are typically used today. History Possibly the oldest existing arch bridge is the Mycenaean Greece, Mycenaean Arkadiko Bridge in Greece from about 1300 BC. The stone corbel arch bridge is still used by the local populace. The well-preserved Hellenistic Eleutherna Bridge has a triangular corbel arch. The 4th century BC Rhodes Footbridge rests on an early voussoir arch. Although true arches were already known by the Etruscans and ancient Greeks, the Ancient Rome, Romans were – as with the Vault (architecture), vault and the dome – the first to fully realize the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maidenhead Railway Bridge
Maidenhead Railway Bridge, also known as Maidenhead Viaduct and The Sounding Arch, carries the Great Western Main Line (GWML) over the River Thames between Maidenhead, Berkshire and Taplow, Buckinghamshire, England. It is a single structure of two tall, wide red-brick arches abutment, buttressed by two over-land smaller arches. It crosses the river on the Maidenhead-Bray Reach, between Boulter's Lock and Bray Lock, and is near-centrally pier (architecture), rooted in the downstream end of Guards Club Island, a very small island. The Maidenhead Bridge was designed by the Great Western Railway Company engineer, the noted mechanical engineering, mechanical and civil engineer Isambard Kingdom Brunel. It was completed in 1838, but not brought into use until 1 July 1839. While it was being constructed, the innovative low-rise arches of the structure attracted considerable criticism and controversy, relating to their alleged lack of stability. As a result, the centring for the arche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cape Cod Canal
The Cape Cod Canal is an artificial waterway in Massachusetts connecting Cape Cod Bay in the north to Buzzards Bay in the south, and is part of the Intracoastal Waterway, Atlantic Intracoastal Waterway. The approximately canal traverses the neck of land joining Cape Cod to the state's mainland. It mostly follows tidal rivers widened to and deepened to at mean low water, shaving up to off the journey around the cape for its approximately 14,000 annual users. Most of the canal is located in the town of Bourne, Massachusetts, Bourne, but its northeastern terminus is in Sandwich, Massachusetts, Sandwich. Scusset Beach State Reservation lies near the canal's north entrance, and the Massachusetts Maritime Academy is near its south. A swift-running current changes direction every six hours and can reach during the receding ebb tide. The waterway is maintained by the United States Army Corps of Engineers and has no toll fees. It is spanned by the Cape Cod Canal Railroad Bridge, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sagamore Bridge
The Sagamore Bridge in Sagamore, Massachusetts carries U.S. Route 6 in Massachusetts, Route 6 and the Claire Saltonstall Bikeway across the Cape Cod Canal, connecting Cape Cod with the mainland of Massachusetts. It is the more northeastern of two automobile canal crossings, the other being the Bourne Bridge. Most traffic approaching from the north follows Massachusetts Route 3 which ends at Route 6 just north of the bridge, and the bridge provides direct Controlled-access highway, expressway connections from Boston and Interstate 93 in Massachusetts, Interstate 93. History The bridge and its sibling the Bourne Bridge were constructed beginning in 1933 by the Public Works Administration for the U.S. Army Corps of Engineers, which operates both the bridges and the canal. Both bridges carry four lanes of traffic over a main span, with a ship clearance. They opened to traffic on June 22, 1935. The design of the Sagamore and Bourne bridges was later copied in miniature for the Jo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bourne Bridge
The Bourne Bridge in Bourne, Massachusetts, carries Route 28 across the Cape Cod Canal, connecting Cape Cod with the rest of Massachusetts. It won the American Institute of Steel Construction's Class "A" Award of Merit as the "Most Beautiful Steel Bridge" in 1934. Most traffic approaching from the west follows Route 25 which ends at the interchange with US 6 and Route 28 just north of the bridge. The highway provides freeway connections from Interstate 495 and Interstate 195. History The bridge and its sibling the Sagamore Bridge were constructed beginning in 1933 by the Public Works Administration for the United States Army Corps of Engineers, which operates both the bridges and the canal. Each bridge carries four lanes of traffic over a 616-foot (188 m) main span, with a 135-foot (41 m) ship clearance. Construction ended in early 1935 and the bridge opened on June 22, 1935. The approaches to the main span of the Bourne Bridge are considerably longer than those of the Sag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ahwaz White Bridge
White Bridge () is an arch bridge located in Ahvaz, Khuzestan, Iran, built above the Karun river The Karun (, ) is the Iranian river with the highest water flow, and the country's only navigable river. It is long. The Karun rises in the Zard Kuh mountains of the Bakhtiari district in the Zagros Range, receiving many tributaries, such as .... The bridge was completed on September 21, 1936, and was inaugurated on November 6, 1936. The bridge remains a symbol of the city still today. References Ahvaz Bridges in Iran Architecture in Iran Bridges completed in 1936 Suspension bridges in Iran {{Iran-bridge-struct-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Jersey
New Jersey is a U.S. state, state located in both the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. Located at the geographic hub of the urban area, heavily urbanized Northeast megalopolis, it is bordered to the northwest, north, and northeast by New York (state), New York State; on its east, southeast, and south by the Atlantic Ocean; on its west by the Delaware River and Pennsylvania; and on its southwest by Delaware Bay and Delaware. At , New Jersey is the List of U.S. states and territories by area, fifth-smallest state in land area. According to a 2024 United States Census Bureau, U.S. Census Bureau estimate, it is the List of U.S. states and territories by population, 11th-most populous state, with over 9.5 million residents, its highest estimated count ever. The state capital is Trenton, New Jersey, Trenton, and the state's most populous city is Newark, New Jersey, Newark. New Jersey is the only U.S. stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newcastle Upon Tyne
Newcastle upon Tyne, or simply Newcastle ( , Received Pronunciation, RP: ), is a City status in the United Kingdom, cathedral city and metropolitan borough in Tyne and Wear, England. It is England's northernmost metropolitan borough, located on the River Tyne's northern bank opposite Gateshead to the south. It is the most populous settlement in the Tyneside conurbation and North East England. Newcastle developed around a Roman Empire, Roman settlement called Pons Aelius. The settlement became known as ''Monkchester'' before taking on the name of The Castle, Newcastle, a castle built in 1080 by William the Conqueror's eldest son, Robert Curthose. It was one of the world's largest ship building and repair centres during the Industrial Revolution. Newcastle was historically part of the county of Northumberland, but governed as a county corporate after 1400. In 1974, Newcastle became part of the newly-created metropolitan county of Tyne and Wear. The local authority is Newcastle Ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaotianmen Bridge
The Chaotianmen Bridge (), is a road-rail bridge over the Yangtze River in the city of Chongqing, China. The bridge, which opened on 29 April 2009, is the world's longest through arch bridge. The continuous steel truss arch bridge with tie girders has a height of from middle supports to arch top, main span of and a total length of . It carries six lanes of traffic with a pedestrian walkway on each side on the upper deck. The lower deck has 2 traffic lanes on each side with the Chongqing Metro Loop Line running down the middle.RIA 1/2007, See also * Yangtze River bridges and tunnels * List of longest arch bridge spans This list of the longest arch bridge spans ranks the world's arch bridges by the length of their main Span (architecture), span. The length of the main span is the most common way to rank bridges as it usually correlates with the engineering compl ... References External links * Bridges completed in 2009 Bridges in Chongqing Arch bridges in C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roads & Traffic Authority
The Roads & Traffic Authority (RTA) was an Statutory authority, agency of the Government of New South Wales responsible for major road infrastructure, licensing of drivers, and registration of motor vehicles. The RTA directly managed state roads and provided funding to Local government in Australia, local councils for regional and local roads. In addition, with assistance from the federal government, the RTA also managed the NSW national highway system. The agency was abolished in 2011 and replaced by Roads & Maritime Services. History The Department of Main Roads (New South Wales), Department of Main Roads (DMR) was established in November 1932, and undertook works across New South Wales, including maintenance of all major roads into Sydney and programs of road reconstruction, construction, upgrading and rerouting. The DMR was also responsible for many ferries and bridges in New South Wales. On 16 January 1989, the Department of Main Roads, Department of Motor Transport, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hell Gate Bridge
The Hell Gate Bridge (originally the New York Connecting Railroad Bridge) is a railroad bridge in New York City. The bridge carries two tracks of Amtrak's Northeast Corridor and one freight track between Astoria, Queens, and Port Morris, Bronx, via Randalls and Wards Islands. Its main span is a steel through arch across Hell Gate, a strait of the East River that separates Wards Island from Queens. The bridge also includes several approach viaducts and two spans across smaller waterways; including these spans, the bridge is long. It is one of the few rail connections from Long Island, of which Queens is part, to the continental United States. The New York Connecting Railroad (NYCR) was formed in 1892 to build the bridge, linking New Jersey and the Pennsylvania Railroad (PRR) with New England and the New York, New Haven, and Hartford Railroad (NH). A cantilever bridge across Hell Gate was proposed in 1900, but the plan was changed to a through-arch bridge after repeated dela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sydney Harbour Bridge
The Sydney Harbour Bridge is a steel through arch bridge in Sydney, New South Wales, Australia, spanning Port Jackson, Sydney Harbour from the Sydney central business district, central business district (CBD) to the North Shore (Sydney), North Shore. The view of the bridge, the Harbour, and the nearby Sydney Opera House is widely regarded as an iconic image of Sydney, and of Australia itself. Nicknamed "the Coathanger" because of its arch-based design, the bridge carries rail, vehicular, bicycle and pedestrian traffic. Under the direction of John Bradfield (engineer), John Bradfield of the NSW Public Works, New South Wales Department of Public Works, the bridge was designed and built by British firm Dorman Long of Middlesbrough, and opened in 1932. The bridge's general design, which Bradfield tasked the NSW Department of Public Works with producing, was a rough copy of the Hell Gate Bridge in New York City. The design chosen from the tender responses was original work created by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
