Aqua Claudia

Hadrians loop

Start of the Hadrian's loop near San Cosimato. At rho is a splitting: one branch continued along
the north bank of the Anio / Aniene, the other crossed the river by means of a bridge of which
some remains are still present. At tau a 'down-channel' for the diversion of Claudia water
into the Marcia aqueduct.