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| | The Cloaca Maxima (Site not responding. Last check: ) |
 | | The first cloaca was built around 616 B.C. with the purpose of reclaiming the huge bogs that occupied the large valleys at the foot of the hills and it had Gabina stone banks and it was in the open air. |
 | | The first part of the Cloaca Maxima has, instead, walls in gabina stone blocks; along the route there are some openings from which minor sewers, with a cappuccina covering, penetrate. |
 | | The cloaca was studied in the past by Dr..Bauer, who made a plotting of the main duct, and before, in 1889, by Ing. |
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