Bridge - Wikipedia, the free encyclopedia
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A bridge is a structure built to span a valley, road, body of water, or other physical obstacle, for the purpose of providing passage over the obstacle. Designs of bridges vary depending on the func...
en.wikipedia.org/wiki/Bridge
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The first Bollman Truss was built across the Little Patuxent at Savage, Maryland on the Washington Branch in 1850, replacing a wooden bridge. It had the modest span of 76 feet. In 1851, bridges at Bladensburg and at Harper's Ferry followed.
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www.du.edu/~jcalvert/tech/bolltrus.htm
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Folsom's Historic Truss Bridge ... This bridge was originally built across the American River in 1893 replacing the Ecklon Toll Bridge, a suspension bridge that had collapsed the year before. It was used for carrying horses, wagons, and livestock across the American River.
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www.myfolsom.com/trussbridge.shtml
www.myfolsom.com/trussbridge.shtml
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The mill flourished, so much so that a spur of the B&O railroad was extended to Savage in 1887. To carry the line over the Little Patuxent River an iron truss bridge was moved to the mill. Built in 1869 the bridge was the work of Wendell Bollman, ... Turn at the first light and drive through the camll town of Savage...
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www.ce.jhu.edu/mdcive/bollman.htm
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The Central Bridge, or Cincinnati & Newport Bridge, opened in 1890 between the Suspension Bridge and the L&N Bridge. It was the first "standard" cantilever truss bridge ever built -- a design since common throughout the world.
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www.cincinnati-transit.net/central.html
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He built the world's first high steel-truss bridge to span the width of the Mississippi, carrying rail, wagon, and pedestrian traffic on the upper level and a railroad track on the lower level.
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www.mvr.usace.army.mil/Bosse/Plates/Plate53.htm
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1855 Whipple Bowstring Truss Bridge Oldest surviving bridge built by the first American to write a treatise on bridge-building based on scientific ...
http://www.asce.org/history/tl_bridges.swf
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Built before the birth of Christ, the bridge is ... One of the most revolutionary arch bridges in recent years is the Natchez Trace Bridge in Franklin, Tennessee, which was opened to traffic in 1994. It's the first American arch bridge to be constructed from segments of pre-cast concrete, a highly economical material.
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www.pbs.org/wgbh/nova/bridge/meetarch.html
www.pbs.org/wgbh/nova/bridge/meetarch.html
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4. Which do you think we will see first: A cure for cancer, or a cure ... Another monumental truss bridge over the Missouri River was lost today. The channel span of the cantilevered through truss at Miami, Missouri, was demolished early this morning so that a replacement bridge can be built on the existing piers.
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bridgehunter.com/
bridgehunter.com/
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