Then without disturbing the groma top cross walk

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then run along the ground between them. Then, without disturbing the groma top-cross, walk around to groma-line `D.’ and view line `D.’, through `B.’, to `E’. A man with a RANGING POLE is directed, at a distance, to be in-line with the groma lines D., B. & E., and a STRINGLINE is then run along the ground between them. This produces a RIGHT-ANGLE on the ground between the string lines.
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The Via Appia, just outside ancient Rome begun in 312 BC by the censor Appius Clauius
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The Via Appia and the Via Appia Traiana Via Appia - begun in 312 BC by the censor Appius Claudius Via Appia Traiana - Trajan’s new route for the Appia, AD 109
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Cutting the Via Appia through the rock at Terracina, AD 109
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Cutting the Via Appia through the rock at Terracina, AD 109
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Depth measurements marking the cut of the Via Appia through the rock at Terracina, AD 109 120 Roman feet (36 m.)
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The Via Flaminia
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The Via Flaminia at Carsulae
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Augustan bridge for the Via Flaminia at Narni The bridge at Narni is over 30 meters high and 160 meters long
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Bridge at Narni Concrete faced with travertine masonry
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Aqueducts w ith such an array of indispensable structures carrying so many waters, compare if you will, the idle Pyramids or the useless, though famous, works of the Greek.” - Frontinus
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So how did the Romans engineer aqueducts? 1) They found water sources 2) They surveyed the course of the channel to maintain a steady slope, as Roman aqueducts operated on gravity , not pressure 3) Collected water at springs, lakes, or rivers 4) Treated it along the way with settling tanks and aeration, 5)
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  • Spring '06
  • Scerri
  • Ancient Rome, Sula, Pont du Gard, Roman aqueduct structures, Romans engineer aqueducts, major Roman roads, Roman Road Construction

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