Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 321
ovia may be cited as one of the most marvellousworks left us by antiquity. Alontfaucon wrote in 1722 that onehundred fifty-nine arches were still standing, all of large stoneswithout cement. The total height was 102 feet with a doublerow of arches, one over the other. Another Roman stone aqueduct… … St. Martin Bridge, Spain. still may be seen in Italy. The one named after Nero was builtof brick and was of very fine workmanship. The Alexandrineviaduct was built of brick over concrete.^ MEDIEVAL BRIDGES. The Middle Ages have left us a number of bridges in variousstates of preservation. They are…
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