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A Dictionary of Greek and Roman biography and mythology (ed. William Smith) 7 7 Browse Search
Pliny the Elder, The Natural History (ed. John Bostock, M.D., F.R.S., H.T. Riley, Esq., B.A.) 1 1 Browse Search
J. B. Greenough, G. L. Kittredge, Select Orations of Cicero , Allen and Greenough's Edition. 1 1 Browse Search
Samuel Ball Platner, Thomas Ashby, A Topographical Dictionary of Ancient Rome 1 1 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 1 1 Browse Search
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Knight's Mechanical Encyclopedia (ed. Knight), B. (search)
arches of stone. Doubts have been suggested as to the authenticity of this account; but it is not surprising when we consider the Cloaca Maxima, constructed in the same reign. The Romans appear to have been the first to construct arched bridges; several of which still exist in Syria and Palestine, and are the oldest stone-arch bridges in existence, unless some of the Etruscan and Chinese bridges antedate them. The Pons Senatorius was erected across the Tiber by Caius Flavius Scipio, 127 B. C. Julius Caesar's and Trajan's bridges. A trestle-bridge on piles (a. Fig. 924) was built by Julius Caesar across the Rhine about 55 B. C. He left an account of its construction, but the authorities construct it differently from the specification extant. It was founded upon piles driven into the bed of the river. The piles were united by a beam, on which were laid joists in the direction of the length of the bridge. Upon the joists were laid hurdles supporting the road-bed. An incl