This image shows two inscriptions marking the water levels in the 1530 and 1599 Tiber floods.

These two inscriptions on the Porta Flaminia mark the water levels when the Tiber River flooded in 1530 and 1599.

Detail of 1530 flood marker with inscription.

Detail of floodmarker from 1530 on the Porta Flaminia. The flooding happened on 8 October 1530 during the pontificate of Clement VII.