Portal:Bridges
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Template:/box-header Portal:Bridges/Intro Template:/box-footer Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found.  The Golden Gate Bridge in San Francisco as seen from the northern end of Baker Beach. Lua error in package.lua at line 80: module 'Module:Box-header/colours' not found. The Palace Bridge in Saint Petersburg in the morning. |
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The Niagara Falls Suspension Bridge was the world's first working railway suspension bridge. It spanned 825 feet (251 m) and stood 2.5 miles (4.0 km) downstream of Niagara Falls from 1855 to 1897. Connecting Niagara Falls, Ontario to Niagara Falls, New York (the two cities assimilated the towns at the ends of the bridge by 1892), the bridge carried mixed traffic on its two decks across the Niagara River; trains crossed over the river by way of the bridge's upper deck while pedestrians and carriages used the lower. As the bridge was the result of a collaboration of two companies from two countries, it was also known by its American name, the International Suspension Bridge. The bridge had other names including the Niagara Railway Suspension Bridge and Niagara Suspension Bridge, but the most common and definitive was simply the Suspension Bridge.
The Suspension Bridge was part of Canadian politician William Hamilton Merritt's vision to promote trade within his country and with its neighbor the United States. When Merritt and company invited the engineering community to bid for the bridge project, they encountered heavy criticism. Many bridge builders, and the general public, did not believe a suspension bridge could allow the safe passage of trains. Nonetheless, the bridge companies engaged several well-known civil engineers to build and maintain the bridge. Charles Ellet, Jr. was first hired to construct the bridge. Using a line laid by a kite across the 800-foot (240 m) chasm, he built a temporary suspension bridge in 1848 as the first part of his plan. Not long after, Ellet left the project after a bitter financial dispute with the bridge companies. A three-year hiatus followed before the companies hired John Augustus Roebling to complete the project. Roebling used Ellet's bridge as scaffolding to build the double-decked bridge. By 1854 his bridge was nearly complete, and the lower deck was opened for pedestrian and carriage travel. On March 18, 1855, a fully laden passenger train drove across the upper deck at 5 miles per hour (8.0 km/h), and officially opened the completed bridge.
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Marc Seguin (April 20, 1786 - February 24, 1875) was a French engineer, inventor of the wire-cable suspension bridge and the multi-tubular steam-engine boiler.
Born Annonay near Lyon, France to Marc François Seguin, founder of Seguin & Co. and Thérèse-Augustine de Montgolfier niece of Joseph Montgolfier, he was an inventor and entrepreneur. He developed the first suspension bridge in continental Europe, building and administering toll-bridges for a total of 186 bridges throughout France.
Bridge types: Arch bridge, Aqueduct[disambiguation needed], Bailey bridge, Bascule bridge, Beam bridge, Box girder bridge, Cable-stayed bridge, Caisson, Cantilever bridge, Cantilever spar cable-stayed bridge, Clapper bridge, Covered bridge, Curling bridge, Drawbridge, Extradosed bridge, Folding bridge, Footbridge, Girder bridge, Inca rope bridge, Jetway, Lattice truss bridge, Log bridge, Mabey Logistic Support Bridge, Moon bridge, Plate girder bridge, Pontoon bridge, Retractable bridge, Self-anchored suspension bridge, Segmental bridge, Side-spar cable-stayed bridge, Simple suspension bridge, Skew arch bridge, Step-stone bridge, Stressed ribbon bridge, Submersible bridge, Suspension bridge, Swing bridge, Tied arch bridge, Tilt bridge, Through arch bridge, Toll bridge, Transporter bridge, Trestle, Truss arch bridge, Truss bridge, Tubular bridge, Vertical lift bridge, Viaduct, Vierendeel bridge, Weigh bridge, Zig-zag bridge
Individual bridges Contoocook Railroad Bridge, Akashi Kaikyo Bridge, Delaware Memorial Bridge, Forth Bridge, Golden Gate Bridge, Huey P. Long Bridge, Humber Bridge, Kintai Bridge, Lake Ponchartrain Causeway, Mike O'Callaghan - Pat Tillman Memorial Bridge, Millau Viaduct, New River Gorge Bridge, Pont de Normandie, Rion-Antirion Bridge, San Francisco - Oakland Bay Bridge (Eastern span replacement), San Mateo – Hayward Bridge, Stonecutters Bridge, Sunshine Skyway Bridge, Tacoma Narrows Bridge, Tsing Ma Bridge, Verrazano-Narrows Bridge(please expand)
