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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] |
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] |
Truss Bridges
A truss bridge is a bridge whose load-bearing superstructure is composed of a truss, a structure of connected elements, usually forming triangular units. The connected elements (typically straight) may be stressed from tension, compression, or sometimes both in response to dynamic loads. The basic types of truss bridges shown in this article have simple designs which could be easily analyzed by 19th and early 20th-century engineers. A truss bridge is economical to construct because it uses materials efficiently. Design The nature of a truss allows the analysis of its structure using a few assumptions and the application of Newton's laws of motion according to the branch of physics known as statics. For purposes of analysis, trusses are assumed to be pin jointed where the straight components meet, meaning that taken alone, every joint on the structure is functionally considered to be a flexible joint as opposed to a rigid joint with strength to maintain its own shape, and th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Completed In 1911
A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually something that is otherwise difficult or impossible to cross. There are many different designs of bridges, each serving a particular purpose and applicable to different situations. Designs of bridges vary depending on factors such as the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, and the material used to make it, and the funds available to build it. The earliest bridges were likely made with fallen trees and stepping stones. The Neolithic people built boardwalk bridges across marshland. The Arkadiko Bridge (dating from the 13th century BC, in the Peloponnese) is one of the oldest arch bridges still in existence and use. Etymology The ''Oxford English Dictionary'' traces the origin of the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dundas Street
Dundas Street is a major historic arterial road in Ontario, Canada. The road connects the city of Toronto with its western suburbs and several cities in southwestern Ontario. Three provincial highways— 2, 5, and 99—followed long sections of its course, although these highway segments have since been downloaded to the municipalities they passed through. Originally intended as a military route to connect the shipping port of York (now Toronto) to the envisioned future capital of London, Ontario, the street today connects Toronto landmarks such as Yonge–Dundas Square and the city's principal Chinatown to rural villages and the regional centres of Hamilton and London. A historic alternate name for the street was Governor's Road, as its construction was supervised by John Graves Simcoe, lieutenant governor of Upper Canada; and the section between Hamilton and Paris still bears that name, albeit without an apostrophe. Dundas Street is also one of the few east–west rout ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
De Grassi Street
De Grassi Street is a side street located in Toronto, Ontario, Canada. It was named after Captain Filippo "Philip" De Grassi, an Italian-born soldier who immigrated to Canada with his family in 1831 and settled in York, Upper Canada. He later became a member of the Family Compact. De Grassi Street is located in south Riverdale, and has a residential character. A number of the homes date back to the 1880s and were built in the distinctive tall, narrow bay-and-gable style. It runs one-way northbound from Queen Street East to Gerrard Street, approximately halfway between Broadview and Carlaw Avenues. Neighbourhoods * Queen-Broadview Village – at Queen Street * Riverside (Queen Street East from the Don Valley east to De Grassi Street) *East Chinatown – at Gerrard Street Attractions * Jimmie Simpson Park – named after former Toronto mayor James Simpson * Bruce Mackey Park – named after a Toronto District School Board educator whose house was used in '' The Kids ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broadview Avenue (Toronto) , formerly Brink's Home Security
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Broadview can refer to: Places Australia *Broadview, South Australia Canada *Broadview (electoral district), in Ontario *Broadview (TTC), a Toronto subway station *Broadview Avenue, a street in Toronto *Broadview, Saskatchewan United States *Broadview, Illinois *Broadview, Indiana *Broadview, Montana *Broadview, Cibola County, New Mexico *Broadview, Curry County, New Mexico *Broadview, Seattle, Washington **Broadview Creek in Seattle *Broadview Heights, Ohio *Broadview Park, Florida *Broadview-Pompano Park, Florida Other uses * ''Broadview'' (magazine), formerly the ''United Church Observer'' *Broadview Press, Canadian academic publisher *Broadview Security ADT Inc., formerly The ADT Corporation, is an American company that provides residential, small and large business electronic security, fire protection, and other related alarm monitoring services throughout the United States. The corporate hea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heraclitus
Heraclitus of Ephesus (; grc-gre, Ἡράκλειτος , "Glory of Hera"; ) was an ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic p ... Pre-Socratic philosophy, pre-Socratic philosopher from the city of Ephesus, which was then part of the Achaemenid Empire, Persian Empire. Little is known of Heraclitus's life. He wrote a single work, only fragments of which have survived. Most of the ancient stories about him are later said to be fabrications based on interpretations of the preserved fragments. His paradoxical philosophy and appreciation for wordplay and cryptic utterances has earned him the epithet "the obscure" since antiquity. He was considered a Misanthropy, misanthrope who was subject to melancholia. Consequently, he became known as "the weeping philosopher" in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lawrence Avenue Bridge
Lawrence may refer to: Education Colleges and universities * Lawrence Technological University, a university in Southfield, Michigan, United States * Lawrence University, a liberal arts university in Appleton, Wisconsin, United States Preparatory & high schools * Lawrence Academy at Groton, a preparatory school in Groton, Massachusetts, United States * Lawrence College, Ghora Gali, a high school in Pakistan * Lawrence School, Lovedale, a high school in India * The Lawrence School, Sanawar, a high school in India Research laboratories * Lawrence Berkeley National Laboratory, United States * Lawrence Livermore National Laboratory, United States People * Lawrence (given name), including a list of people with the name * Lawrence (surname), including a list of people with the name * Lawrence (band), an American soul-pop group * Lawrence (judge royal) (died after 1180), Hungarian nobleman, Judge royal 1164–1172 * Lawrence (musician), Lawrence Hayward (born 1961), British musician ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathurst Street (Toronto)
Bathurst Street is a main north–south thoroughfare in Toronto, Ontario, Canada. It begins at an intersection of the Queens Quay roadway, just north of the Lake Ontario shoreline. It continues north through Toronto to the Toronto boundary at Steeles Avenue. It is a four-lane thoroughfare throughout Toronto. The roadway continues north into York Region where it is known as York Regional Road 38. Route description Bathurst Street begins in the south at the intersection with Queens Quay. The southernmost part of Bathurst, south of the Gardiner Expressway, was heavily industrialized until the 1970s. These factories are now gone; in their place, some residential development has occurred, including the extended Queen's Quay. The former Omni Television headquarters are in this area, before they relocated in October 2008 but Rogers Media still owns the building. South of the intersection, Eireann Quay, which used to be a section of Bathurst Street, runs south to the Billy Bishop ... [...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] |
