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Bridges

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Architecture, Transportation

Golden Gate Bridge

The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the one-mile-wide (1.6 km) strait connecting San Francisco Bay and the Pacific Ocean. The structure links the American city of San Francisco, California – the northern tip of the San Francisco Peninsula – to Marin County, carrying both U.S. Route 101 and California State Route 1 across the strait. The bridge is one of the most internationally recognized symbols of San Francisco, California, and the United States. It has been declared one of the Wonders of the Modern World by the American Society of Civil Engineers.

Architecture, Transportation

Brooklyn Bridge

The Brooklyn Bridge is a hybrid cable-stayed/suspension bridge in New York City and is one of the oldest roadway bridges in the United States. Started in 1869 and completed fourteen years later in 1883, it connects the boroughs of Manhattan and Brooklyn, spanning the East River. It has a main span of 1,595.5 feet (486.3 m) and was the first steel-wire suspension bridge constructed. It was originally called the New York and Brooklyn Bridge and the East River Bridge, but it was later dubbed the Brooklyn Bridge, a name coming from an earlier January 25, 1867 letter to the editor of the Brooklyn Daily Eagle and formally so named by the city government in 1915. Since opening, it has become an icon of New York City and was designated a National Historic Landmark in 1964 and a National Historic Civil Engineering Landmark in 1972.

Architecture, Transportation

Tower Bridge

Tower Bridge is a combined bascule and suspension bridge in London built between 1886 and 1894. The bridge crosses the River Thames close to the Tower of London and has become an iconic symbol of London. Because of this, Tower Bridge is sometimes confused with London Bridge, situated some 0.5 mi (0.80 km) upstream. Tower Bridge is one of five London bridges now owned and maintained by the Bridge House Estates, a charitable trust overseen by the City of London Corporation. It is the only one of the Trust's bridges not to connect the City of London directly to the Southwark bank, as its northern landfall is in Tower Hamlets.

Architecture, Transportation

London Bridge

Several bridges named London Bridge have spanned the River Thames between the City of London and Southwark, in central London. The current crossing, which opened to traffic in 1973, is a box girder bridge built from concrete and steel. It replaced a 19th-century stone-arched bridge, which in turn superseded a 600-year-old stone-built medieval structure. This was preceded by a succession of timber bridges, the first of which was built by the Roman founders of London.

Architecture

Overtoun Bridge

Overtoun Bridge is a category B-listed structure over the Overtoun Burn on the approach road to Overtoun House, near Dumbarton in West Dunbartonshire, Scotland. It was completed in 1895 to a design by the landscape architect H. E. Milner.

Architecture, Transportation

Sunshine Skyway Bridge

The Bob Graham Sunshine Skyway Bridge, known to locals as the Sunshine Skyway Bridge or more casually the Skyway, is a bridge spanning Tampa Bay, Florida, with a cable-stayed main span, and a total length of 21,877 feet. It is part of Interstate 275 (I-275) and U.S. Route 19 (US 19), connecting St. Petersburg in Pinellas County and Terra Ceia in Manatee County, Florida, passing through the waters of Pinellas County, Hillsborough County and Manatee County, Florida. Construction of the current bridge began in 1982, and the completed bridge was dedicated on February 7, 1987. The new bridge cost $244 million to build, and was opened to traffic on April 20, 1987. It replaced an older bridge constructed in 1954, which was partly destroyed in a collision in 1980.

Architecture, Traveling

Grand Canyon Skywalk

The Grand Canyon Skywalk is a horseshoe-shaped cantilever bridge with a glass walkway in Arizona near the Colorado River on the edge of a side canyon in the Grand Canyon West area of the main canyon. USGS topographic maps show the elevation at the Skywalk's location as 4,770 ft (1,450 m) and the elevation of the Colorado River in the base of the canyon as 1,160 ft (350 m), and they show that the height of the precisely vertical drop directly under the skywalk is between 500 ft (150 m) and 800 ft (240 m).

Architecture

Sydney Harbour Bridge

The Sydney Harbour Bridge is a steel through arch bridge across Sydney Harbour that carries rail, vehicular, bicycle, and pedestrian traffic between the Sydney central business district (CBD) and the North Shore. The dramatic view of the bridge, the harbour, and the nearby Sydney Opera House is an iconic image of Sydney, and Australia itself. The bridge is nicknamed "The Coathanger" because of its arch-based design.

Architecture

Bogibeel Bridge

Bogibeel bridge is a combined road and rail bridge over the Brahmaputra river in the north eastern Indian state of Assam between Dhemaji district and Dibrugarh district, which was started in the year 2002 and took a total of 200 months to complete the project as heavy rainfall in the region being the main cause for the slow progress. Bogibeel river bridge is the longest rail-cum-road bridge in India measuring 4.94 kilometres over the Brahmaputra river. As the Bogibeel bridge being situated in an earthquake prone area it is India's first bridge to have fully welded steel-concrete support beams that can withstand earthquakes of magnitudes upto 7 Richter Scale. This is also Asia’s 2nd longest rail-cum-road bridge that has a serviceable period of around 120 years. This is the 4th longest bridge in India after Bhupen Hazarika Setu, Mahatma Gandhi Setu and Bandra-Worli Sea Link.

Architecture

Tacoma Narrows Bridge (1940)

The 1940 Tacoma Narrows Bridge, the first Tacoma Narrows Bridge, was a suspension bridge in the U.S. state of Washington that spanned the Tacoma Narrows strait of Puget Sound between Tacoma and the Kitsap Peninsula. It opened to traffic on July 1, 1940, and dramatically collapsed into Puget Sound on November 7 of the same year. At the time of its construction, the bridge was the third-longest suspension bridge in the world in terms of main span length, behind the Golden Gate Bridge and the George Washington Bridge.

Architecture, Transportation

Lake Pontchartrain Causeway

The Lake Pontchartrain Causeway, sometimes only the Causeway, is a fixed link composed of two parallel bridges crossing Lake Pontchartrain in southern Louisiana, United States. The longer of the two bridges is 23.83 miles (38.35 km) long. The southern terminus of the Causeway is in Metairie, Louisiana, a suburb of New Orleans. The northern terminus is at Mandeville, Louisiana.

Architecture, Transportation

Øresund Bridge

The Øresund or Öresund Bridge is a combined railway and motorway bridge across the Øresund strait between Sweden and Denmark. The bridge runs nearly 8 kilometres from the Swedish coast to the artificial island Peberholm in the middle of the strait. The crossing is completed by the 4-kilometre (2.5 mi) Drogden Tunnel from Peberholm to the Danish island of Amager.

Architecture

Howrah Bridge

Howrah Bridge is a bridge with a suspended span over the Hooghly River in West Bengal, India. Commissioned in 1943, the bridge was originally named the New Howrah Bridge, because it replaced a pontoon bridge at the same location linking the two cities of Howrah and Kolkata (Calcutta). On 14 June 1965 it was renamed Rabindra Setu after the great Bengali poet Rabindranath Tagore, who was the first Indian and Asian Nobel laureate. It is still popularly known as the Howrah Bridge.

Architecture, Transportation

George Washington Bridge

The George Washington Bridge is a double-decked suspension bridge spanning the Hudson River between the Washington Heights neighborhood of Manhattan in New York City, and the borough of Fort Lee in New Jersey. As of 2016, the George Washington Bridge carried over 103 million vehicles per year, making it the world's busiest motor vehicle bridge. It is owned by the Port Authority of New York and New Jersey, a bi-state government agency that operates infrastructure in the Port of New York area. The George Washington Bridge is also informally known as the GW Bridge, the GWB, the GW, or the George and formerly as the Fort Lee Bridge or Hudson River Bridge.

Architecture

Suspension bridge

A suspension bridge is a type of bridge in which the deck is hung below suspension cables on vertical suspenders. The first modern examples of this type of bridge were built in the early 1800s. Simple suspension bridges, which lack vertical suspenders, have a long history in many mountainous parts of the world.