Ole Singstad
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Ole Singstad
Ole Knutsen Singstad (June 29, 1882 – December 8, 1969) was a Norwegian-American civil engineer best known for his work on underwater vehicular tunnels in New York City. Singstad designed the ventilation system for the Holland Tunnel, which subsequently became commonly used in other automotive tunnels, and advanced the use of the immersed tube method of underwater vehicular tunnel building, a system of constructing the tunnels with prefabricated sections. He also designed the Lincoln Tunnel, Brooklyn–Battery Tunnel, and Queens–Midtown Tunnel. By 1950, Singstad had designed and overseen the construction of more underwater tunnels than all other engineers combined. In 1946, the Triborough Bridge Authority under Robert Moses took over tunnel construction in New York, and Singstad was subsequently sidelined as Moses favored bridges over tunnels. Early life Ole Singstad was born at Singstad farm in Lensvik (now Orkland municipality) in Trøndelag county, Norway. He was the sev ...
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Lensvik (municipality)
Lensvik is a former municipality in the old Sør-Trøndelag county in Norway. The municipality existed from 1905 until its dissolution in 1964. The municipality was located along the western shore of the Trondheimsfjorden and it encompassed the central part of what is now Orkland municipality in Trøndelag county. The administrative centre was the village of Lensvik where the Lensvik Church is located. History The municipality of Lensvik was established on 1 January 1905 when it was separated from the municipality of Rissa which originally spanned both sides of the Trondheimsfjorden. The separation left Lensvik municipality (population: 1,019) on the west side of the fjord and the remainder of Rissa on the east side of the fjord. During the 1960s, there were many municipal mergers across Norway due to the work of the Schei Committee. On 1 January 1964, the municipality of Lensvik (population: 1,136) was merged with the eastern part of Agdenes municipality (population: 858) and ...
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Norway
Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of Norway. Bouvet Island, located in the Subantarctic, is a dependency of Norway; it also lays claims to the Antarctic territories of Peter I Island and Queen Maud Land. The capital and largest city in Norway is Oslo. Norway has a total area of and had a population of 5,425,270 in January 2022. The country shares a long eastern border with Sweden at a length of . It is bordered by Finland and Russia to the northeast and the Skagerrak strait to the south, on the other side of which are Denmark and the United Kingdom. Norway has an extensive coastline, facing the North Atlantic Ocean and the Barents Sea. The maritime influence dominates Norway's climate, with mild lowland temperatures on the se ...
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Philadelphia
Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since 1854, the city has been coextensive with Philadelphia County, the most populous county in Pennsylvania and the urban core of the Delaware Valley, the nation's seventh-largest and one of world's largest metropolitan regions, with 6.245 million residents . The city's population at the 2020 census was 1,603,797, and over 56 million people live within of Philadelphia. Philadelphia was founded in 1682 by William Penn, an English Quaker. The city served as capital of the Pennsylvania Colony during the British colonial era and went on to play a historic and vital role as the central meeting place for the nation's founding fathers whose plans and actions in Philadelphia ultimately inspired the American Revolution and the nation's inde ...
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Parsons Brinckerhoff
WSP USA, formerly WSP, Parsons Brinckerhoff and Parsons Brinckerhoff, is a multinational engineering and design firm with approximately 14,000 employees. WSP stands for Williams Sale Partnership. The firm operates in the fields of strategic consulting, planning, engineering, construction management, energy, infrastructure and community planning. In 2013, the company was named the tenth largest U.S.-based engineering/design firm by ''Engineering News Record''. In 2020, it was ranked #7 of the Top 500 Design Firms and #2 of the Top 100 Pure Designers by the same magazine. On October 31, 2014, Parsons Brinckerhoff became a wholly owned independent subsidiary of WSP Global, a Canadian-based professional services firm. Parsons Brinckerhoff was renamed to WSP, Parsons Brinckerhoff, then to WSP USA in 2017. Together with WSP Global, WSP USA is one of the largest professional services firms in the world, with approximately 31,500 employees in 500 offices serving 39 countries. History F ...
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Chile Exploration Company
Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east and the Pacific Ocean to the west. Chile covers an area of , with a population of 17.5 million as of 2017. It shares land borders with Peru to the north, Bolivia to the north-east, Argentina to the east, and the Drake Passage in the far south. Chile also controls the Pacific islands of Juan Fernández, Isla Salas y Gómez, Desventuradas, and Easter Island in Oceania. It also claims about of Antarctica under the Chilean Antarctic Territory. The country's capital and largest city is Santiago, and its national language is Spanish. Spain conquered and colonized the region in the mid-16th century, replacing Inca rule, but failing to conquer the independent Mapuche who inhabited what is now south-central Chile. In 1818, after declaring in ...
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Clifford Milburn Holland
Clifford Milburn Holland (March 13, 1883 – October 27, 1924) was an American civil engineer who oversaw the construction of a number of subway and automobile tunnels in New York City, and for whom the Holland Tunnel is named. Life Holland was born in Somerset, Massachusetts. He was the only child of Edward John Holland and Lydia Frances Hood. He attended Cambridge Latin School. Holland graduated from Harvard University with a B.A. in 1905 and a B.S. in Civil Engineering in 1906. On November 5, 1908, he married Anna Coolidge Davenport (1885–1973), who was originally from Watertown and had graduated from Radcliffe College. They had four daughters. Immediately after graduation, Holland began his career in New York City working as an assistant engineer on the construction of the Joralemon Street Tunnel. He then served as the engineer-in-charge of construction of the Clark Street Tunnel, 60th Street Tunnel, Montague Street Tunnel and the 14th Street Tunnel.
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East River
The East River is a saltwater tidal estuary in New York City. The waterway, which is actually not a river despite its name, connects Upper New York Bay on its south end to Long Island Sound on its north end. It separates the borough of Queens on Long Island from the Bronx on the North American mainland, and also divides Manhattan from Queens and Brooklyn, also on Long Island.Hodges, Godfrey. "East RIver" in Jackson, pp.393–93 Because of its connection to Long Island Sound, it was once also known as the ''Sound River''. The tidal strait changes its direction of flow frequently, and is subject to strong fluctuations in its current, which are accentuated by its narrowness and variety of depths. The waterway is navigable for its entire length of , and was historically the center of maritime activities in the city. Formation and description Technically a drowned valley, like the other waterways around New York City, the strait was formed approximately 11,000 years ago at the e ...
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Manhattan
Manhattan (), known regionally as the City, is the most densely populated and geographically smallest of the five boroughs of New York City. The borough is also coextensive with New York County, one of the original counties of the U.S. state of New York. Located near the southern tip of New York State, Manhattan is based in the Eastern Time Zone and constitutes both the geographical and demographic center of the Northeast megalopolis and the urban core of the New York metropolitan area, the largest metropolitan area in the world by urban landmass. Over 58 million people live within 250 miles of Manhattan, which serves as New York City’s economic and administrative center, cultural identifier, and the city’s historical birthplace. Manhattan has been described as the cultural, financial, media, and entertainment capital of the world, is considered a safe haven for global real estate investors, and hosts the United Nations headquarters. New York City is the headquarters of ...
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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 ...
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Hudson And Manhattan Railroad
Port Authority Trans-Hudson (PATH) is a rapid transit system in the northeastern New Jersey cities of Newark, Harrison, Jersey City, and Hoboken, as well as Lower and Midtown Manhattan in New York City. It is operated as a wholly owned subsidiary of the Port Authority of New York and New Jersey. PATH trains run around the clock year round; four routes serving 13 stations operate during the daytime on weekdays, while two routes operate during weekends, late nights, and holidays. It crosses the Hudson River through cast iron tunnels that rest on the river bottom. It operates as a deep-level subway in Manhattan and the Jersey City/Hoboken riverfront; from Grove Street in Jersey City to Newark, trains run in open cuts, at grade level, and on elevated track. In , the system saw rides, or about per weekday in . The routes of the PATH system were originally operated by the Hudson & Manhattan Railroad (H&M), built to link New Jersey's Hudson Waterfront with New York City. The syste ...
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Virginian Railway
The Virginian Railway was a Class I railroad located in Virginia and West Virginia in the United States. The VGN was created to transport high quality "smokeless" bituminous coal from southern West Virginia to port at Hampton Roads. History Early in the 20th century, William N. Page, William Nelson Page, a civil engineer and coal mining manager, joined forces with a Partnership, silent partner, industrialist financier Henry H. Rogers, Henry Huttleston Rogers (a principal of Standard Oil and one of the wealthiest men in the world), to develop the Deepwater Railway, a modest 85-mile long short line railroad to access untapped bituminous coal reserves in some of the most rugged sections of southern West Virginia. When Page was blocked by collusion of the bigger railroads, who refused to grant reasonable rates to interchange the coal traffic, he did not quit. As he continued building the original project, to provide their own link, using Rogers' resources and attorneys they quiet ...
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Norfolk, Virginia
Norfolk ( ) is an independent city in the Commonwealth of Virginia in the United States. Incorporated in 1705, it had a population of 238,005 at the 2020 census, making it the third-most populous city in Virginia after neighboring Virginia Beach and Chesapeake, and the 94th-largest city in the nation. Norfolk holds a strategic position as the historical, urban, financial, and cultural center of the Hampton Roads region, which has more than 1.8 million inhabitants and is the thirty-third largest Metropolitan Statistical area in the United States. Officially known as ''Virginia Beach-Norfolk-Newport News, VA-NC MSA'', the Hampton Roads region is sometimes called "Tidewater" and "Coastal Virginia"/"COVA," although these are broader terms that also include Virginia's Eastern Shore and entire coastal plain. Named for the eponymous natural harbor at the mouth of the Chesapeake Bay, Hampton Roads has ten cities, including Norfolk; seven counties in Virginia; and two counties in No ...
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