Archi Roman Aqueduct in Acqui Terme. The aqueduct was probably built in the second century. AD was more than ten kilometers long and supplied the city center drawing to a source close to Cartosio carrying water along a path at times suspended and sometimes underground. The remaining seven columns; give a good idea of u200bu200bhow it could be in the origin and structure make us assume that the aqueduct was used as a 'bridge' for crossing the Bormida. Photography Elena Piccini; Acqui Terme (AL) 2004.