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Old Eastern Avenue Bridge
The Old Eastern Avenue Bridge (also known erroneously as the King Street Bridge) consists of two bridges spanning the Don River in Toronto, Ontario, Canada. The north bridge or ''Gas Line Bridge'' is a concrete arch bridge built for Consumer's Gas Company and is used by Enbridge Gas to carry a major gas main. The southern Howe truss bridge, similar to Queen Street Viaduct and Sir Isaac Brock Bridge, previously carried traffic on Eastern Avenue but is currently unused. History The bridge was built in 1933 replacing an older wooden bridge that had been damaged by ice on the Don River in 1900. The original cost was $70,864.07. The bridge was closed off in 1964 after the construction of the Don Valley Parkway. Eastern's east and west halves crossed the Don River north of the old alignment via a new large bridge with ramps connecting to the Don Valley Parkway, and this viaduct (known as the Eastern Avenue Bypass in some maps) forked out and become the eastern terminus of both Richmo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Don River (Ontario)
The Don River is a watercourse in southern Ontario that empties into Lake Ontario, at Toronto Harbour. Its mouth was just east of the street grid of the town of York, Upper Canada, the municipality that evolved into Toronto, Ontario. The Don is one of the major watercourses draining Toronto (along with the Humber, and Rouge Rivers) that have headwaters in the Oak Ridges Moraine. The Don is formed from two rivers, the East and West Branches, that meet about north of Lake Ontario while flowing southward into the lake. The area below the confluence is known as the "lower Don", and the areas above as the "upper Don". The Don is also joined at the confluence by a third major branch, Taylor-Massey Creek. The Toronto and Region Conservation Authority (TRCA) is responsible for managing the river and its surrounding watershed. Toponymy In 1788, Alexander Aitkin, an English surveyor who worked in southern Ontario, referred to the Don River as ''Ne cheng qua kekonk''. Elizabeth Simc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toronto Transportation Services
Toronto Transportation Services is the division of the City of Toronto which manages transport infrastructure within public rights of way in Toronto. With an operating budget of approximately $436.4 million in 2022 and 1,400 staff, the division maintains the city's surface streets and sidewalks, cycling infrastructure, the Gardiner Expressway and the Don Valley Parkway. History The department was created in the 1998 amalgamation of Toronto from the merger of: * Metropolitan Toronto Transportation Department (Metro Toronto Roads and Transportation) * North York Transportation Department * Scarborough Works Department * Etobicoke Transportation Department * City of York Transportation Department * East York Transportation Department * City of Toronto Department of Public Works and the Environment Before amalgamation, Metro Toronto Transportation was responsible for major roads across Metro, while the municipalities were responsible for collector and local roads in their respective ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enbridge
Enbridge Inc. is a multinational pipeline and energy company headquartered in Calgary, Alberta, Canada. Enbridge owns and operates pipelines throughout Canada and the United States, transporting crude oil, natural gas, and natural gas liquids. Enbridge's pipeline system is the longest in North America and the largest oil export pipeline network in the world. Its crude oil system consists of 28,661 kilometres (17,809 miles) of pipelines. Its 38,300 kilometre (23,800 mile) natural gas pipeline system connects multiple Canadian provinces, several US states, and the Gulf of Mexico. The company was formed by Imperial Oil in 1949 as the Interprovincial Pipe Line Company Limited to transport Alberta oil to refineries. Over time, it has grown through acquisition of other existing pipeline companies and the expansion of their projects. Between 2012 and 2021, Enbridge transported over 32 billion barrels of crude oil. Enbridge has built several renewable energy projects in North America ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toronto
Toronto ( ; or ) is the capital city of the Provinces and territories of Canada, Canadian province of Ontario. With a recorded population of 2,794,356 in 2021, it is the List of the largest municipalities in Canada by population, most populous city in Canada and the List of North American cities by population, fourth most populous city in North America. The city is the anchor of the Golden Horseshoe, an urban agglomeration of 9,765,188 people (as of 2021) surrounding the western end of Lake Ontario, while the Greater Toronto Area proper had a 2021 population of 6,712,341. Toronto is an international centre of business, finance, arts, sports and culture, and is recognized as one of the most multiculturalism, multicultural and cosmopolitanism, cosmopolitan cities in the world. Indigenous peoples in Canada, Indigenous peoples have travelled through and inhabited the Toronto area, located on a broad sloping plateau interspersed with Toronto ravine system, rivers, deep ravines, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and developmen ... [...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 loads partially into a horizontal thrust restrained by the abutments at either side. 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 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 Romans were – as with the vault and the dome – the first to fully realize the potential of arches for bridge construction. A list of Roman bridges compiled by the engineer Colin O'Connor features ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Howe Truss
A Howe truss is a truss bridge consisting of chords, verticals, and diagonals whose vertical members are in tension and whose diagonal members are in compression. The Howe truss was invented by William Howe in 1840, and was widely used as a bridge in the mid to late 1800s. Development The earliest bridges in North America were made of wood, which was abundant and cheaper than stone or masonry. Early wooden bridges were usually of the Towne lattice truss or Burr truss design. Some later bridges were McCallum trusses (a modification of the Burr truss). About 1840, iron rods were added to wooden bridges. The Pratt truss used wooden vertical members in compression with diagonal iron braces. The Howe truss used iron vertical posts with wooden diagonal braces. Both trusses used counter-bracing, which was becoming essential now that heavy railroad trains were using bridges. In 1830, Stephen Harriman Long received a patent for an all-wood parallel chord truss bridge. Long's bridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queen Street Viaduct
The Queen Street Viaduct (usually known as the Queen Street Bridge) in Toronto, Canada carries vehicles and Toronto Transit Commission streetcars along Queen Street East and across the Don River. It is an example of a Pratt truss. History The viaduct is at least the third bridge over the Don River at this location, the first operated by the Scadding family in the early 1800s (One of the early bridges was a wooden bridge built in 1803.) The previous bridges were closer to the level of the river bank below. The bridge prior to the 1910 bridge was a warren truss bridge and was shifted over during the transition work. The Board of Railway Commissioners authorized the construction of the third, current bridge in 1909 because of safety concerns. The new bridge would eliminate a busy grade-level railway crossing on the west bank of the river, used by the Canadian Pacific Railway, Grand Trunk Railway The Grand Trunk Railway (; french: Grand Tronc) was a railway system that operat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sir Isaac Brock Bridge
The Sir Isaac Brock Bridge is a steel Warren truss bridge in Toronto, Ontario, Canada. It lies along Bathurst Street over the railway tracks between Front Street and Fort York Boulevard. The bridge carries four lanes for motor vehicles with the centre lanes containing the streetcar tracks of the Toronto Transit Commission's 511 Bathurst streetcar route. The Bridge was formerly named The ''Bathurst Street Bridge'' before changing names and being named after Isaac Brock. The steel truss bridge was built in 1903 and used for the Great Western Railway over the Humber River (northside of then Lakeshore Road at mouth of the river). It was dis-assembled and re-located in 1916 to Bathurst Street and converted for road traffic. The bridge served to connect Bathurst Street at Front Street to Fort York. In 1931, the bridge was moved and re-aligned (Bathurst Street was at an angle south of Front Street) to support streetcar service south of the railway tracks at that location. A new bri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Avenue (Toronto)
Eastern Avenue is an east-west street in Toronto, Ontario, Canada. It runs from just east of Parliament Street in the downtown to just west of Coxwell Avenue, near the Beaches neighbourhood. Originally Eastern crossed the Don River at the Old Eastern Avenue Bridge, but that bridge was disconnected in 1964. Today, Eastern's east and west halves cross the Don River north of the old alignment via a large bridge with ramps connecting to the Don Valley Parkway, and this viaduct (known as the Eastern Avenue Bypass in some maps) forks out and becomes the eastern terminus of both Richmond and Adelaide streets. Eastern runs through what was once the heart of Toronto's most industrial area, the region just north of Toronto Harbour and the Port Lands area. Today most of the factories have departed. Some do remain, notably the large Weston bakery. Several film studios have moved into the former industrial areas near Eastern and Carlaw, and this area is today billed as the Studio District. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Don Valley Parkway
The Don Valley Parkway (DVP) is a municipal expressway in Toronto, Ontario, Canada, which connects the Gardiner Expressway in downtown Toronto with Highway 401. North of Highway 401, it continues as Highway 404. The parkway runs through the parklands of the Don River valley, after which it is named. It has a maximum speed limit of for its entire length of . It is six lanes for most of its length, with eight lanes north of York Mills Road and four lanes south of Eastern Avenue. As a municipal road, it is patrolled by the Toronto Police Service. The parkway was the second expressway to be built by Metropolitan Toronto (Metro). Planning began in 1954, the year of Metro's formation. The first section opened during 1961 and the entire route was completed by the end of 1966. South of Bloor Street, the expressway was constructed over existing roadways. North of Bloor Street, it was built on a new alignment through the valley, requiring the removal of several hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gardiner Expressway
The Frederick G. Gardiner Expressway, commonly known as the Gardiner Expressway or simply the Gardiner, is a partially at grade and elevated municipal expressway in Toronto, Ontario, Canada. Running close to the shore of Lake Ontario, it extends from the foot of the Don Valley Parkway (DVP) in the east, just past the mouth of the Don River, to the junction of Highway 427 and the Queen Elizabeth Way (QEW) in the west, for a total length of . East of Dufferin Street to just east of the Don River, the roadway is elevated for a length of , unofficially making it the longest bridge in Ontario. It runs above Lake Shore Boulevard east of Spadina Avenue. The highway is named after the first chair of the now-defunct Metro Council, Frederick G. Gardiner. The six-lane section east of the Humber River was built in segments from 1955 until 1964 by the Metropolitan Toronto government with provincial highway funds. The ten-lane section west of the Humber was formerly part of the QEW. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
