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Othmar Ammann
Othmar Hermann Ammann (March 26, 1879 – September 22, 1965) was a Swiss-American civil engineer whose bridge designs include the George Washington Bridge, Verrazzano-Narrows Bridge, and Bayonne Bridge. He also directed the planning and construction of the Lincoln Tunnel. Biography Othmar Ammann was born near Schaffhausen, Switzerland, in 1879. His father was a manufacturer and his mother was a hat maker. He received his engineering education at the Polytechnikum in Zürich, Switzerland. He studied with Swiss engineer Wilhelm Ritter. In 1904, he emigrated to the United States, spending much of his career working in New York City. He became a naturalized citizen in 1924. In 1905 he briefly returned to Switzerland to marry Lilly Selma Wehrli. Together they had three children Werner, George, and Margotbefore she died in 1933. He then married Klary Vogt Noetzli, herself recently widowed, in 1935 in California. Ammann wrote two reports about bridge collapses, the collapse of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golden Gate Bridge
The Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the strait connecting San Francisco Bay and the Pacific Ocean. The structure links the U.S. 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. It also carries pedestrian and bicycle traffic, and is designated as part of U.S. Bicycle Route 95. Being declared one of the Wonders of the Modern World by the American Society of Civil Engineers, the bridge is one of the most internationally recognized symbols of San Francisco and California. It was initially designed by engineer Joseph Strauss in 1917. The bridge was named for the Golden Gate strait, the channel that it spans. The Frommer's travel guide describes the Golden Gate Bridge as "possibly the most beautiful, certainly the most photographed, bridge in the world." At the time of its opening in 1937, it was both the longe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feuerthalen
Feuerthalen is a municipality in the district of Andelfingen in the canton of Zürich in Switzerland. Langwiesen also belongs to the same municipality. History Feuerthalen is first mentioned in 876 as ''Langewisa''. In 1318 it was mentioned as ''Fuirtal an dem Rine''. Geography Feuerthalen has an area of . Of this area, 16.1% is used for agricultural purposes, while 43.8% is forested. Of the rest of the land, 38.6% is settled (buildings or roads) and the remainder (1.6%) is non-productive (rivers, glaciers or mountains). It is located on the left bank of the Rhine and provided the bridgehead on that side of the river for the city of Schaffhausen. It includes the village of Langwiesen which in turn shares an international border with the municipality of Büsingen am Hochrhein which is an exclave of Germany, entirely surrounded by Swiss territory. Demographics Feuerthalen has a population (as of ) of . , 19.4% of the population was made up of foreign nationals. Over the last 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quebec Bridge
The Quebec Bridge (french: pont de Québec) is a road, rail, and pedestrian bridge across the lower Saint Lawrence River between Sainte-Foy, Quebec City, Sainte-Foy (a former suburb that in 2002 became a western area of Quebec City) and Lévis, Quebec, Lévis, in Quebec, Canada. The project failed twice during its construction, in 1907 and 1916, at the cost of 88 lives and additional people injured. It took more than 30 years to complete and eventually opened in 1919. The Quebec Bridge is a riveted steel Truss bridge, truss structure and is long, wide, and high. Cantilever bridge, Cantilever arms long support a central structure, for a total span of , still the List of longest cantilever bridge spans, longest cantilever bridge span in the world. (It was the all-categories longest span in the world until the Ambassador Bridge was completed in 1929.) It is the easternmost (farthest downstream) complete crossing of the Saint Lawrence River. The bridge accommodates Quebec Route ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Hemisphere
The Western Hemisphere is the half of the planet Earth that lies west of the prime meridian (which crosses Greenwich, London, United Kingdom) and east of the antimeridian. The other half is called the Eastern Hemisphere. Politically, the term Western Hemisphere is often used as a metonymy for the Americas, even though geographically the hemisphere also includes parts of other continents. . Geography The Western Hemisphere consists of the , excluding some of the |
Suspension Bridge
A suspension bridge is a type of bridge in which the deck (bridge), deck is hung below suspension wire rope, 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. Besides the bridge type most commonly called suspension bridges, covered in this article, there are other types of suspension bridges. The type covered here has cables suspended between towers, with vertical ''suspender cables'' that transfer the Structural load#Live load, imposed loads, transient load, live and Structural load#Dead load, dead loads of the deck below, upon which traffic crosses. This arrangement allows the deck to be level or to arc upward for additional clearance. Like other suspension bridge types, this type often is constructed without the use of falsework. The suspension cables must be anchored at each end of the bridge, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Largest Suspension Bridges
The world's longest suspension bridges are listed according to the length of their main span (i.e. the length of suspended roadway between the bridge's towers). The length of main span is the most common method of comparing the sizes of suspension bridges, often correlating with the height of the towers and the engineering complexity involved in designing and constructing the bridge. If one bridge has a longer span than another it does not necessarily mean that the bridge is longer from shore to shore (or from abutment to abutment). Suspension bridges have the longest spans of any type of bridge. Cable-stayed bridges, the next longest design, are practical for spans up to just over 1 kilometre. Therefore, , the 31 longest bridges on this list are the 31 longest spans of all types of vehicular bridges (other than floating pontoon bridges). Currently, the 1915 Çanakkale Bridge in Turkey holds the record since opening to traffic in March 2022, with a span of . Since 1998, the Aka ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York (state)
New York, officially the State of New York, is a state in the Northeastern United States. It is often called New York State to distinguish it from its largest city, New York City. With a total area of , New York is the 27th-largest U.S. state by area. With 20.2 million people, it is the fourth-most-populous state in the United States as of 2021, with approximately 44% living in New York City, including 25% of the state's population within Brooklyn and Queens, and another 15% on the remainder of Long Island, the most populous island in the United States. The state is bordered by New Jersey and Pennsylvania to the south, and Connecticut, Massachusetts, and Vermont to the east; it has a maritime border with Rhode Island, east of Long Island, as well as an international border with the Canadian provinces of Quebec to the north and Ontario to the northwest. New York City (NYC) is the most populous city in the United States, and around two-thirds of the state's popul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ammann & Whitney
Ammann & Whitney was a full-service Civil engineering firm that provided design and construction services for public and private sector projects. The firm provided new construction, renovations, adaptive reuse, historic preservation, interior design and sustainable design. In 2016, Ammann & Whitney merged with Louis Berger to form Louis Berger U.S. History Ammann & Whitney was founded in 1946 by Othmar Ammann, a bridge designer, and Charles S. Whitney, a designer of innovative structures. Whitney's innovations include collaborations with Eero Saarinen on early thin-shell concrete structures such as Kresge Auditorium (1955), TWA Flight Center (1962), and the main terminal at Dulles International Airport (1962). Ammann & Whitney has since grown into an international firm. While working with a wide variety of projects including (steel, concrete, masonry and timber) bridges for vehicular, pedestrian and rail traffic, Ammann & Whitney focuses on long span suspension bridges. Exampl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triborough Bridge And Tunnel Authority
The Triborough Bridge and Tunnel Authority (TBTA), doing business as MTA Bridges and Tunnels, is an affiliate agency of the Metropolitan Transportation Authority that operates seven toll bridges and two tunnels in New York City. In terms of traffic volume, it is the largest bridge and tunnel toll agency in the United States, serving more than a million people each day and generating more than $1.9billion in toll revenue annually as of 2017. , its budget was $596 million, funded through taxes and fees. The Triborough Bridge and Tunnel Authority was founded in 1933 as the Triborough Bridge Authority (TBA). The agency was named after its first crossing, the Triborough Bridge. The Triborough Bridge Authority was reorganized as the Triborough Bridge and Tunnel Authority in 1946, and subsequently began using the name MTA Bridges and Tunnels in 1994. In addition to operating all nine toll crossings located entirely within New York City, the TBTA also controlled several buildings such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Moses
Robert Moses (December 18, 1888 – July 29, 1981) was an American urban planner and public official who worked in the New York metropolitan area during the early to mid 20th century. Despite never being elected to any office, Moses is regarded as one of the most powerful individuals in the history of the New York City and State governments. The grand scale of his infrastructural projects and his philosophy of urban development influenced a generation of engineers, architects, and urban planners across the United States. Moses held various positions throughout his more than forty-year long career. He at times held up to 12 titles simultaneously, including New York City Parks Commissioner and Chairman of the Long Island State Park Commission. Having worked closely with New York Governor Al Smith early in his career, Moses became expert in writing laws and navigating and manipulating the inner workings of state government. He created and led numerous semi-autonomous public autho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hudson River
The Hudson River is a river that flows from north to south primarily through eastern New York. It originates in the Adirondack Mountains of Upstate New York and flows southward through the Hudson Valley to the New York Harbor between New York City and Jersey City, eventually draining into the Atlantic Ocean at Lower New York Bay. The river serves as a political boundary between the states of New Jersey and New York at its southern end. Farther north, it marks local boundaries between several New York counties. The lower half of the river is a tidal estuary, deeper than the body of water into which it flows, occupying the Hudson Fjord, an inlet which formed during the most recent period of North American glaciation, estimated at 26,000 to 13,300 years ago. Even as far north as the city of Troy, the flow of the river changes direction with the tides. The Hudson River runs through the Munsee, Lenape, Mohican, Mohawk, and Haudenosaunee homelands. Prior to European ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Of New York Authority
The Port Authority of New York and New Jersey, PANYNJ; stylized, in logo since 2020, as Port Authority NY NJ, is a joint venture between the U.S. states of New York and New Jersey, established in 1921 through an interstate compact authorized by the United States Congress. The Port Authority oversees much of the regional transportation infrastructure, including bridges, tunnels, airports, and seaports, within the geographical jurisdiction of the Port of New York and New Jersey. This port district is generally encompassed within a radius of the Statue of Liberty National Monument. The Port Authority is headquartered at 4 World Trade Center. The Port Authority operates the Port Newark–Elizabeth Marine Terminal, which handled the third-largest volume of shipping among all ports in the United States in 2004, and the largest on the Eastern Seaboard. The Port Authority also operates six bi-state crossings: three connecting New Jersey with Manhattan, and three connecting New Jers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
