Entering the Park from the little porticina del Dosso in Villasanta, after traveling a few dozen meters of dirt road, one encounters the Bertoli Bridge (also called "del Dosso").
The Bridge, designed by architect Giacomo Tazzini in the fourth decade of the 19th century, owes its name to the family that owned the land located in that vicinity, and even today the Bridge connects Viale Mulino del Cantone to Viale dei Molini Asciutti.
Originally it was made of wood, but as a result of continuous flooding it was rebuilt with an innovative technique for the time.
The intervention changed the structure of the bridge, replacing the multiple arches with a single abutment to support the structure to facilitate the flow of water in case of flooding of the river.
The abutments and the central pier of the bridge are made of masonry with a covering of stump, widely used as ornamental stone in all the artifacts related to the existing hydraulic works within the Park.
Standing on the parapet, one can see beautiful views of the waterfall upstream.