The Tower has a square base, with three floors. Under the Tower, in the building itself, a vaulted arch was left that gives passage from the village to the bridge. On the face of the tower, on the side of the village, and on the right, there is a somewhat worn inscription in which one can still read "This work had D. Fernando abad ..." inscription that is engraved in a kind of "edicula ", and cut vertically by an abacial staff. The abbot D. Fernando of which we are dealing here, ruled Salzedas from 1453 to 1474, the time period in which the tower was rebuilt.

The lower part of the tower, as well as the entire arch and passage tunnel, have all the expression of a Romanesque building from the 12th century.

The bridge in its primitive one-story tower structure worked with the barrier or toll tax. Documents from 1315 and 1318 determine the mandatory crossing of the bridge and the respective payment, a practice that only came to be abolished during the reign of King Manuel I, in 1504.