The Pedret Bridge is a medieval bridge over the Llobregat river, in the municipality of Cercs, three kilometers from the center of Berga.
The bridge and the holes underneath are two works included in the Inventory of the Architectural Heritage of Catalonia independently.
Under the Gothic bridge of Pedret there are a large number of holes that correspond to different medieval constructions. A first series of thirty holes placed parallel and crossing the river on both sides. They could be the holes into which the beams supporting a wooden bridge built in the Romanesque period were fitted.
A little further away from this first clearly differentiated group, we find another series of 12, 51 and 22 more holes that seem to correspond to one confined to a medieval mill from the late 10th century or early 11th century. They were used to house the beams of a rustic wooden lock.
Near these holes there are remains of what should have been a canalization or irrigation. In this place there was a flour mill in the 17th and 18th centuries, of which there are no remains today because the successive railway works have destroyed them.