The Junta de Andalucía is planning to check every one of the 3,954 bridges on roads in the region, in a project which will take four years and cost 3.7 million euros.
The aim is to draw up an accurate picture of the condition of every bridge and prevent any of them deteriorating to such an extent that they could collapse, which apart from the obvious risks to safety would also be far more expensive to repair.
During the last legislature, the regional Ministry of Public Works had to spend ten million euros on emergency works to a dozen bridges because of their precarious condition.
The inspections will be carried out by experts using drones and underwater equipment to check the state of the pillars situated in rivers, reservoirs and lakes.
The catalogue of bridges in Andalucía shows that some are over 100 years old, the Ministry says, and these need continual monitoring to ensure that they remain safe to use.