In order to find informationabout the legend of Devil's bridge we have used Google scholar.In the following link there is by Carme Oriol from the University Rovira i Virgili Neocities.
According to Dr Oriol there are 27 versions of the legend just in Catalonia
The topic of the devil building a bridge in just one night in exchange for the soulof a victim is very common in the folk narrative both in Europe and outside Europe
The genre is between legend and folktale
Here you can find images from Devil's bridges located around the world: