Revision of the Niagara Railway Arch Bridge (1920)
Charles Evan Fowler · [New York] : American Society of Civil Engineers · leaf 12
ins, but they were a serious problem to the engi-neer of that period. In his final report, Mr. Koebling speaks ofpassenger trains of 15-ton cars frequently passing over the bridge, andthe average number of trips in March, 1855, as being more than 30daily, probably including freight trains as well… … REVISION OF NIAGARA RAILWAY ARCH BRIDGE 1927 An engine and tender of 34 tons weight, together with one pas-senger car, crowded with persons, making a total of about 47 tons,caused a depression in the center of 5£ inches. * * * A single engine of 23 tons weight, including tender, caused aflattening…
Bridges
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