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Lift Bridge
A vertical-lift bridge or just lift bridge is a type of movable bridge in which a span rises vertically while remaining parallel with the deck. The vertical lift offers several benefits over other movable bridges such as the bascule and swing-span bridges. Generally speaking, they cost less to build for longer moveable spans. The counterweights in a vertical lift are only required to be equal to the weight of the deck, whereas bascule bridge counterweights must weigh several times as much as the span being lifted. As a result, heavier materials can be used in the deck, and so this type of bridge is especially suited for heavy railroad use. The biggest disadvantage to the vertical-lift bridge (in comparison with many other designs) is the height restriction for vessels passing under it, due to the deck remaining suspended above the passageway. Most vertical-lift bridges use towers, each equipped with counterweights. An example of this kind was built in Portland, Oregon, U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bascule Bridge
A bascule bridge (also referred to as a drawbridge or a lifting bridge) is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic. It may be single- or double-leafed. The name comes from the French term for balance scale, which employs the same principle. Bascule bridges are the most common type of movable span because they open quickly and require relatively little energy to operate, while providing the possibility for unlimited vertical clearance for marine traffic. History Bascule bridges have been in use since ancient times, but until the adoption of steam power in the 1850s, very long, heavy spans could not be moved quickly enough for practical application. Types There are three types of bascule bridge and the counterweights to the span may be located above or below the bridge deck. The fixed-trunnion (sometimes a "Chicago" bascule) rotates around a large axle that raises ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kansas City, Missouri
Kansas City, Missouri, abbreviated KC or KCMO, is the largest city in the U.S. state of Missouri by List of cities in Missouri, population and area. The city lies within Jackson County, Missouri, Jackson, Clay County, Missouri, Clay, and Platte County, Missouri, Platte counties, with a small portion lying within Cass County, Missouri, Cass County. It is the central city of the Kansas City metropolitan area, which straddles the Missouri–Kansas state line and has a population of 2,392,035. As of the 2020 United States census, 2020 census, the city had a population of 508,090, making it the sixth-most populous city in the Midwestern United States, Midwest and List of United States cities by population, 38th-most populous city in the United States. Kansas City was founded in the 1830s as a port on the Missouri River at its confluence with the Kansas River from the west. On June 1, 1850, the town of Kansas was incorporated; shortly after came the establishment of the Kansas Terr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hancock, Michigan
Hancock is a city in the Upper Peninsula of Michigan, Upper Peninsula of the U.S. state of Michigan. The population of Hancock was 4,501 at the 2020 United States census. The city is located within Houghton County, Michigan, Houghton County, and is situated upon the Keweenaw Waterway, a channel of Lake Superior that cuts across the Keweenaw Peninsula. Hancock is located across the Keweenaw Waterway from the city of Houghton, Michigan, Houghton, and is connected to that city by the Portage Lake Lift Bridge. The city is located within Michigan's Copper Country region. Hancock is considered a "cultural capital" for Finnish Americans. The city is home to the Finnish American Heritage Center, and was home to Finlandia University from 1896 to 2023. Some street name signs in Hancock are Bilingual sign, bilingual, reading in both English and Finnish. The Weather Channel has consistently ranked Hancock as the third-snowiest city in the U.S. History Hancock is located within Ojibwa (Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Houghton, Michigan
Houghton (; ) is the largest city and county seat of Houghton County, Michigan, Houghton County in the U.S. state of Michigan. Located on the Keweenaw Peninsula, Houghton is the largest city in the Copper Country region. It is the fifth-largest city in the Upper Peninsula of Michigan, Upper Peninsula, with a population of 8,386 at the 2020 United States census. Houghton is the principal city of the Houghton micropolitan area, Michigan, Houghton micropolitan area, which includes all of Houghton and Keweenaw County, Michigan, Keweenaw counties. Houghton lies upon the Keweenaw Waterway, a partly natural, partly artificial waterway connecting at both ends to Lake Superior. Across the waterway from Houghton lies the city of Hancock, Michigan, Hancock. The city of Houghton was named for Douglass Houghton, an American geologist and physician, primarily known for his exploration of the Keweenaw Peninsula. Houghton is home to Michigan Technological University, a public research universi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portage Lake Lift Bridge
The Portage Lake Lift Bridge (officially the Houghton–Hancock Bridge) connects the cities of Hancock and Houghton, in the US state of Michigan. It crosses Portage Lake, a portion of the waterway which cuts across the Keweenaw Peninsula with a canal linking the final several miles to Lake Superior to the northwest. US Highway 41 (US 41) and M-26 are both routed across the bridge. It is the only land-based link between the north (so-called Copper Island) and south sections of the Keweenaw peninsula. In June 2022, it was dedicated as a National Historic Civil Engineering Landmark. This moveable bridge is a lift bridge with the middle section capable of being lifted from its low point of four feet clearance over the water to a clearance of to allow boats to pass underneath. The bridge is the world's heaviest and widest double-decked vertical-lift bridge. More than 35,000 tons of concrete and 7,000 tons of steel went into the bridge, which replaced the narrow 5 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockport (city), New York
Lockport is both a city and the Lockport (town), New York, town that surrounds it in Niagara County, New York, United States. The city is the Niagara county seat, with a population of 21,165 according to 2010 census figures, and an estimated population of 20,305 as of 2019. Its name derives from a set of Erie Canal Lock (water navigation), locks (Lock Numbers 34 and 35) within the city that were built to allow canal barges to traverse the of the Niagara Escarpment. It is part of the Buffalo–Niagara Falls metropolitan area. History The New York State Legislature authorized the Erie Canal's construction in April 1816. The route proposed by surveyors was to traverse an area in central Niagara County, New York, which was then "uncivilized" and free of White settlers. At the time, the nearest settlers were in nearby Cold Springs, Buffalo, New York, Cold Springs, New York. Following the announcement, land speculation, speculators began to buy large plots along and near the prop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erie Canal
The Erie Canal is a historic canal in upstate New York that runs east–west between the Hudson River and Lake Erie. Completed in 1825, the canal was the first navigability, navigable waterway connecting the Atlantic Ocean to the Great Lakes, vastly reducing the costs of transporting people and goods across the Appalachians. The Erie Canal accelerated the settlement of the Great Lakes region, the westward expansion of the United States, and the economic ascendancy of New York (state), New York state. It has been called "The Nation's First Superhighway". A canal from the Hudson River to the Great Lakes was first proposed in the 1780s, but a formal survey was not conducted until 1808. The New York State Legislature authorized construction in 1817. Political opponents of the canal (referencing its lead supporter New York Governor DeWitt Clinton) denigrated the project as "Clinton's Folly" and "Clinton's Big Ditch". Nonetheless, the canal saw quick success upon opening on October ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population, seventh-largest by population, with over 212 million people. The country is a federation composed of 26 Federative units of Brazil, states and a Federal District (Brazil), Federal District, which hosts the capital, Brasília. List of cities in Brazil by population, Its most populous city is São Paulo, followed by Rio de Janeiro. Brazil has the most Portuguese-speaking countries, Portuguese speakers in the world and is the only country in the Americas where Portuguese language, Portuguese is an Portuguese-speaking world, official language. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazil, coastline of . Covering roughly half of South America's land area, it Borders of Brazil, borders all other countries and ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porto Alegre
Porto Alegre (, ; , ; ) is the capital and largest city of the Brazilian Federative units of Brazil, state of Rio Grande do Sul. Its population of roughly 1.4 million inhabitants (2022) makes it the List of largest cities in Brazil, 11th-most populous city in the country and the centre of Brazil's List of metropolitan areas in Brazil, fifth-largest metropolitan area, with 4.1 million inhabitants (2022). The city is the southernmost capital city of a Brazilian state. Porto Alegre was founded in 1769 by Manuel Jorge Gomes de Sepúlveda, who used the pseudonym José Marcelino de Figueiredo to hide his identity; the official date, though, is 1772 with the act signed by Immigration to Brazil, immigrants from the Azores, Portugal. The city lies on the eastern bank of the Guaíba Lake, where five rivers converge to form the Lagoa dos Patos, a giant freshwater lagoon navigable by even the largest of ships. This five-river junction has become an important alluvial port and a chief indus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Guaíba
A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from the ocean, although they may be connected with the ocean by rivers. Lakes, as with other bodies of water, are part of the water cycle, the processes by which water moves around the Earth. Most lakes are fresh water and account for almost all the world's surface freshwater, but some are salt lakes with salinities even higher than that of seawater. Lakes vary significantly in surface area and volume of water. Lakes are typically larger and deeper than ponds, which are also water-filled basins on land, although there are no official definitions or scientific criteria distinguishing the two. Lakes are also distinct from lagoons, which are generally shallow tidal pools dammed by sandbars or other material at coastal regions of oceans or large la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ontario
Ontario is the southernmost Provinces and territories of Canada, province of Canada. Located in Central Canada, Ontario is the Population of Canada by province and territory, country's most populous province. As of the 2021 Canadian census, it is home to 38.5% of the country's population, and is the second-largest province by total area (after Quebec). Ontario is Canada's fourth-largest jurisdiction in total area of all the Canadian provinces and territories. It is home to the nation's capital, Ottawa, and its list of the largest municipalities in Canada by population, most populous city, Toronto, which is Ontario's provincial capital. Ontario is bordered by the province of Manitoba to the west, Hudson Bay and James Bay to the north, and Quebec to the east and northeast. To the south, it is bordered by the U.S. states of (from west to east) Minnesota, Michigan, Ohio, Pennsylvania, and New York (state), New York. Almost all of Ontario's border with the United States follows riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Colborne
Port Colborne is a city in Ontario, Canada that is located on Lake Erie, at the southern end of the Welland Canal, in the Niagara Region of Southern Ontario. The original settlement, known as Gravelly Bay, dates from 1832 and was renamed after Sir John Colborne, a British war hero and the Lieutenant Governor of Upper Canada at the time of the opening of the (new) southern terminus of the First Welland Canal in 1833. The city's population in 2021 was 20,033. History In pre- colonial times, Indigenous people of the Onguiaahra (Neutral Iroquois) lived in the area, due in part to the ready availability of flint and chert from outcroppings on the Onondaga Escarpment. This advantage was diminished by the introduction of firearms by European traders, and they were driven out by the Six Nations of the Iroquois around 1650 as part of the Beaver Wars. Originally called Gravelly Bay, after the shallow, bedrock-floored bay upon which it sits, today's City of Port Colborne traces its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
