10 years ago the flood of Genoa, today the geologists on the affected places
“The last kilometer of the torrent of torrent Fereggiano it is covered and this cover is inadequate in terms of capacity and for this reason a spillway has been built that allows the waters to drain.
The main criticality of this cover is this poor carrying capacity further reduced the heavy rains when it moves along the surface slopes and the material that is transported by the streams easily occludes this but like other similar coverings, together with trees.
Therefore it is necessary to provide for widespread maintenance throughout the territory “. The geologist said just now Guido Paliaga, President of the Italian Society of Environmental Geology Liguria section.
“A lot has certainly been done – he said Paolo Airaldi, President of the Order of Geologists of Liguria – but the message is that the spillway has been made which allows to mitigate the hydraulic hazard but this is not enough because there are slopes that are largely neglected with abandoned terraces“.
“The Ferreggiano is a valley of mills where their function was linked to a terraced area for agricultural purposes which, however, immediately underwent an urbanization resulting from the changed socio-economic conditions and therefore buildings – he said a little while ago Francesco Faccini, geologist of the University of Genoa infrastructures but also constructions and roofs.
According to geologists, many things need to be done. Eg structural interventions which are those in progress such as the spillway but it is also important to operate non-structural interventions such as monitoring and maintenance of a territory altered by anthropic processes and interventions by training and information for the population“.