On 14 August 2018 at around 11:36 local time (09:36 UTC), during a torrential rainstorm, a 210-metre (690 ft) section of Ponte Morandi collapsed. This was centered on the westernmost pillar 9 which crossed the Polcevera river as well as an industrial area of Sampierdarena. Eyewitnesses reported that the bridge was hit by lightning before it collapsed. Between 30 and 35 cars and three trucks were reported to have fallen from the bridge.
A large part of the collapsed bridge and the vehicles on it fell into the rain-swollen Polcevera. Other parts landed on the tracks of the Turin–Genoa and Milan–Genoa railways, and on warehouses belonging to Ansaldo Energia, an Italian power engineering company, which were largely empty because the collapse occurred on the eve of the Italian public holiday, Ferragosto.
The initial hypotheses are that a structural weakness or a landslide caused the collapse.The bridge was reportedly undergoing maintenance at the time of the collapse, including strengthening the road foundations.
According to Corriere della Sera, this was the 11th bridge collapse in Italy sin