| 11. | In addition to the excavated portions of the ditch, the project also included the construction of several inverted siphons.
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| 12. | Sometimes, where valleys deeper than had to be crossed, inverted siphons were used to convey water across a valley.
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| 13. | Roman engineers used inverted siphons to move water across a valley if they judged it impractical to build a raised aqueduct.
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| 14. | Sometimes, where depressions deeper than 50 metres had to be crossed, inverted siphons were used to force water uphill.
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| 15. | Large inverted siphons are used to convey water being carried in canals or flumes across valleys, for irrigation or gold mining.
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| 16. | There is an inverted siphon in disrepair very close to Harbourview Road but it can be bypassed by an existing deer trail.
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| 17. | There are three concrete trestles which are easily crossed as well as an inverted siphon which requires a bushwack to get around.
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| 18. | To allow surface water to drain freely across the path of the aqueduct, inverted siphons were installed at fifty-six locations.
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| 19. | On another occasion, Branca wrote to Castelli regarding a design for a nozzle for an inverted siphon to be installed in a fountain.
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| 20. | An inverted siphon system, along with glass covered clay pipes, was used for the first time in the palaces of Crete, Greece.
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