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Lytton CNR Fraser Bridge
The Lytton CNR Fraser Bridge is a deck truss bridge carrying the Canadian National Railway tracks across the Fraser River at Lytton, British Columbia. It is of a similar design to the Lytton CNR Thompson Bridge, located approximately north. The bridge consists of three deck Pratt truss spans; the centre span measures approximately 90 metres, and each side span measures approximately 45 metres. The approach at either end is a pair of deck plate girder spans of approximately 20m each. The three centre truss spans are supported on four concrete piers. At each end, the approach girder spans are supported on the abutments, a taller and thinner concrete pier, and the truss spans. The Fraser River's water level varies dramatically throughout the year; the centre piers can be fully surrounded by rushing water in the spring and completely on dry land in late summer and fall. A pedestrian walkway on the north side of the bridge serves Indian reserve communities and other rural residents ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canadian National Railway
The Canadian National Railway Company (french: Compagnie des chemins de fer nationaux du Canada) is a Canadian Class I freight railway headquartered in Montreal, Quebec, which serves Canada and the Midwestern and Southern United States. CN is Canada's largest railway, in terms of both revenue and the physical size of its rail network, spanning Canada from the Atlantic coast in Nova Scotia to the Pacific coast in British Columbia across approximately of track. In the late 20th century, CN gained extensive capacity in the United States by taking over such railroads as the Illinois Central. CN is a public company with 22,600 employees, and it has a market cap of approximately CA$90 billion. CN was government-owned, having been a Canadian Crown corporation from its founding in 1919 until being privatized in 1995. , Bill Gates is the largest single shareholder of CN stock, owning a 14.2% interest through Cascade Investment and his own Bill and Melinda Gates Foundation. Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fraser River
The Fraser River is the longest river within British Columbia, Canada, rising at Fraser Pass near Blackrock Mountain in the Rocky Mountains and flowing for , into the Strait of Georgia just south of the City of Vancouver. The river's annual discharge at its mouth is or , and it discharges 20 million tons of sediment into the ocean. Naming The river is named after Simon Fraser, who led an expedition in 1808 on behalf of the North West Company from the site of present-day Prince George almost to the mouth of the river. The river's name in the Halqemeylem (Upriver Halkomelem) language is , often seen archaically as Staulo, and has been adopted by the Halkomelem-speaking peoples of the Lower Mainland as their collective name, . The river's name in the Dakelh language is . The ''Tsilhqot'in'' name for the river, not dissimilar to the ''Dakelh'' name, is , meaning Sturgeon ''()'' River ''()''. Course The Fraser drains a area. Its source is a dripping spring at Fraser Pas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lytton, British Columbia
Lytton is a village of about 250 residents in southern British Columbia, Canada, on the east side of the Fraser River and primarily the south side of the Thompson River, where it flows southwesterly into the Fraser. The community includes the Village of Lytton and the surrounding community of the Lytton First Nation, whose name for the place is Camchin, also spelled ''Kumsheen'' ("river meeting"). During heat waves, Lytton is often the hottest spot in Canada despite its location north of 50th parallel north, 50°N in latitude. In three consecutive days of June 2021, it broke the all-time record for List of extreme temperatures in Canada, Canada's highest temperature, ending at on June 29. This is the highest temperature ever recorded north of 45th parallel north, 45°N and higher than the all-time records for Europe and South America. The next day (June 30), Lytton wildfire, a wildfire swept through the valley, destroying the majority of the town. The Lytton area has been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truss Bridge
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] |
Truss Bridge
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] |
Lytton CNR Thompson Bridge
The Lytton CNR Thompson Bridge is a deck truss bridge carrying the Canadian National Railway tracks from across the Thompson River at Lytton, British Columbia, approximately upstream of where the Thompson River merges into the Fraser River. It is of a similar design and should not be confused with the Lytton CNR Fraser Bridge located approximately south. It consists of 3 deck Pratt truss spans which are supported on four concrete piers. The centre two piers are in the river while the outer two are shorter and above the waterline. British Columbia Highway 12 Highway 12, opened in 1953, is a connection from the Trans-Canada Highway at Lytton to the town of Lillooet, one of two road connections between the Thompson-Nicola and Squamish-Lillooet Regional Districts. The highway originally went all the ... crosses the Thompson River mostly parallel to, and slightly downstream of this bridge. The south end of the road bridge is directly above the south end of the railroad bridge. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plate Girder Bridge
A plate girder bridge is a bridge supported by two or more plate girders. Overview In a plate girder bridge, the plate girders are typically I-beams made up from separate structural steel plates (rather than rolled as a single cross-section), which are welded or, in older bridges, bolted or riveted together to form the vertical web and horizontal flanges of the beam. In some cases, the plate girders may be formed in a Z-shape rather than I-shape. The first tubular wrought iron plate girder bridge was built in 1846-47 by James Millholland for the Baltimore and Ohio Railroad. Plate girder bridges are suitable for short to medium spans and may support railroads, highways, or other traffic. Plate girders are usually prefabricated and the length limit is frequently set by the mode of transportation used to move the girder from the bridge shop to the bridge site. Generally, the depth of the girder is no less than the span, and for a given load bearing capacity, a depth of around ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Crossings Of The Fraser River
This is a list of bridges, tunnels, and other crossings of the Fraser River in the Canadian province of British Columbia. It includes both functional crossings and historic crossings which no longer exist, and lists them in sequence from the South Arm of the Fraser River at the Strait of Georgia upstream to its source. Listed separately on this page are the crossings on the Fraser River's North and Middle Arms. Fraser River Delta (Strait of Georgia to New Westminster) South Arm This is a list of crossings of the South Arm of the Fraser River from the Strait of Georgia to the North Arm of the Fraser River at approximately mile 16.5. The South Arm is the primary outflow branch of the Fraser River. Middle Arm This is a list of crossings of the Middle Arm of the Fraser River from the Strait of Georgia to the North Arm of the Fraser River at approximately mile 4.6. North Arm This is a list of crossings of the North Arm of the Fraser River from the Strait of Georgia to the ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Bridges In Canada
This is a list of bridges and viaducts in Canada, including those for pedestrians and vehicular traffic. Historical and architectural interest bridges There are only a few covered bridges left in Canada compared to all those that were built in the past. In the Quebec province, if we already counted 1200 in the last century, today there are only 88 remaining. In New Brunswick, 58 covered bridges have been identified. Major road and railway bridges The Canada's longest bridge is the Confederation Bridge in the Gulf of St. Lawrence with a total of between abutments, it's also the world's longest bridge over ice-covered water. More than 5,000 local workers helped with the project, which cost about $1 billion. The Quebec Bridge has been the longest cantilever bridge span in the world since 1917, measuring between its two piles. It helds the record of all-categories longest span in the world until the opening of the Ambassador Bridge, it's the last bridge that broke such a rec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lytton Ferry
The Lytton Ferry is a cable ferry across the Fraser River in British Columbia, Canada. It is situated about north of Lytton. Technically, the ferry is a reaction ferry, which is propelled by the current of the water. An overhead cable is suspended from towers anchored on either bank of the river, and a "traveller" is installed on the cable. The ferry is attached to the traveller by a bridle cable. To operate the ferry, rudders are used to ensure that the pontoons are angled into the current, causing the force of the current to move the ferry across the river. The ferry operates under contract to the British Columbia Ministry of Transportation, is free of tolls, and runs on demanbetween 0630 and 2215 It carries a maximum of 2 cars, or one small school bus, and 18 passengers at a time. The crossing is about in length, and takes 5 minutes. The ferry does not operate at times of high water. See also *List of crossings of the Fraser River *Adams Lake Cable Ferry *Arrow Park ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bridges Over The Fraser River
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
