 On his General Rafael Urdaneta Bridge in Venezuela - where the cables of the stays are not covered with prestressed concrete (as instead intended from the initial project, and optimal for Morandi) - several exposed cables snapped from rapid corrosion, and all the stay-cables were replaced just 18 years after construction.In 2016, Ponte Morandi in Genoa (Polcevera Viaduct) had been described as a "failure of engineering", with escalating maintenance costs to keep it safe.In reality since the 1970s Morandi acknowledged, and reported, the incorrect structural response of his Genoa bridge and the related safety risk, mentioning an unexpectedly fast corrosion as a possible reason for the problems, and requiring corrective work.Pier number 9 of the bridge collapsed on 14 August 2018, causing 43 fatalities.