The Smurf River Bridge is a location in the Smurf Forest that appears in both the Smurfs comic books and the 1981 Smurfs cartoon show. Its appearance alternates between an ordinary rope bridge and a wooden suspension bridge, depending on the story being told, but it's usually a place that the Smurfs go to either for working or for crossing to the other side.
In "The Finance Smurf", a toll booth was erected by the bridge after it was reconstructed so that Smurfs must pay a toll of one coin in order to cross it. The toll booth was most likely dismantled when the Smurf Village monetary system was dissolved.
This location does not appear in the 2021 TV series for unknown reasons.