Equally evidently of post-classical origin is the masonry of the first two piers above the lower cornice, which projects from all piers at the same height. The superstructure of these piers could have been reconstructed for a drawbridge or a tower, which, according to an illustration in the "Voyage Pittoresque", rested upon pier 2. In contrast, the third pier has still preserved its original Roman character up to the top at . Its carefully worked ashlar and the second cornice, which ran along all ancient piers, provide us with the most distinct impression of the original shape of the Roman bridge.