...The Polcevera viaduct of the A10 motorway, called the Ponte Morandi bridge, crosses the Polcevera stream in Genoa between the districts of Sampierdarena and Cornigliano.
The elevated road is located over a river, railroad tracks and buildings and the highway is a major artery to the Italian Riviera and to France's southern coast.
The bridge, designed by the engineer Riccardo Morandi, was built between 1963 and 1967 by the Italian Society for Water Pipelines.
On September 4, 1967, the bridge was inaugurated in the presence of the President of the Republic Giuseppe Saragat.
The bridge has a length of 1,102 meters, a height at the road level of 45 meters and 3 reinforced concrete piers reaching 90 meters in height.
The Ponte Morandi bridge is a beamed bridge, where the vertical elements are trestles made up of two superimposed Vs.
Restructuring work on the bridge was carried out in 2016.
According to a source, "work was underway to consolidate the viaduct slab and, as planned, a bridge crane had been installed to allow maintenance activities to take place".
The highway operator said work to shore up the foundation of the bridge was being carried out at the time of the collapse.
But he added the bridge was being constantly monitored while work was being carried out.
He said: "The work and the status of the viaduct were subject to constant observation and supervision by the Tronco Management of Genoa.
"The causes of the collapse will be analyzed in depth as soon as it will be possible to safely access the places...
https://www.express.co.uk/news/world/1003224/Genoa-bridge-collapse-news-Ponte-Morandi-bridge-when-built-how-tall-Italy-news