it is the Largon canal, which takes the name of Revedoli from Torre di Fine: it brings its waters to the Piave, not far from the mouth of Cortellazzo (i.e. when you arrive at the swing bridge).
The Largon Revedoli collects half of the waters of the Brian (from Cittanova di San Donà), which in turn collects the waters of the Grassaga and Bidoggia (which form in Ormelle) and the Piavon (which forms near Motta di Livenza) ... from the springs to the sea!
The other half of the waters of the Brian is diverted onto the waters of the Comessere canal which discharges them into the Livenza which instead flows between Porto Santa Margherita and Caorle.
You are therefore in the middle of the final part of the great reclamation of Eastern Veneto which collects water, avoids floods, branches out into a hundred canals and supplies water to these lands made fertile just over a hundred years ago.