Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 338
tures, we are told of a quite remarkable one built by LouisA\ernwag in 1813. It was a bridge over the Schuylkill Riverwhich had a span of 340 feet, supposedly the longest woodenbridge ever built in the United States. After several systems ofwooden construction had been tried, with more or less… … Firth of Forth. Scotland. facility and quickness of construction, the system soon becamegenerally used by nearly all the railroads in this country. Evento this date those wooden truss bridges may be seen on some lessprosperous railroad lines. With the expanding iron industries, wrought and cast…
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