Venice is comprised of many islands with canals running in between them. Most of the city has no automobile access, with the bulk of car traffic coming and going through Piazzale Roma. Just East of that honking, bus and taxi-ridden exception is a canal known as the "Rio Nuovo".
A few bridges span this waterway, which is a thoroughfare for all sorts of boat types.
In the photos posted here, we see the white "Ponte del Prefetto", and behind it (bordering the Grand Canal) is a green iron bridge known as the "Ponte Santa Chiara". Both bridges connect the Fondamenta Cossetti on the Piazzale Roma side, with the Fondamenta Papadopoli which flanks the Giardini Papadopoli.
Like all the canals in Venice, there are gondolas traversing the Rio Nuovo, but it also sees a heavy flow of water taxi and cargo vessel traffic.