The wooden bridge of 1252 was swept away in a flood seven years later and was rebuilt in stone; this structure was in turn destroyed by a flood in 1333. The bridge of five arches constructed by Taddeo Gaddi was also destroyed in the flood of 1557, which occasioned Ammannati's replacement.
A wooden bridge from 1252 was destroyed by a flood seven years later and was rebuilt using stone; however, it ultimately met its end in a flood in 1333. The five-arched bridge constructed by Taddeo Gaddi also fell prey to the flood of 1557, prompting Ammannati's appointment.