She was not scheduled for such an occasion. The 100-year flood flooded the protecting embankment of the Ajaccio airport space and the water rose to a peak of 1 meter on the runway. It took a number of days to evacuate it, and even create a breach within the dike, constructed within the type of earth fill.
4 kilometers lengthy, the construction dates from the 1950s. Worn out by time and even by one other main flood, within the 1980s (it was already essential to breach the dike), its degree of security have to be reviewed on the rise.
“Some weak factors”
On the aspect of the technical path of the Napoleon Bonaparte airport, it’s stated that regardless of the water stress and its stagnation, the dyke didn’t give manner.
“There are a couple of factors which were weakened, which ought to due to this fact be strengthened and restored. Nevertheless, the dam has performed its position. (…) What research in progress have a tendency to point out are is that the dike doesn’t include a dike as we had it in December. It’s due to this fact essential to deliver extra research, a brand new examine of hazard and the containment system. On the finish of this examine, we can outline the capability of the dyke when it comes to flood, in addition to the works to be carried out to guard the airport extra considerably. “José Raffalli, technical director of Ajaccio airport .
Till 2024, the proprietor was the Collectivity of Corsica. The Ajaccian Nation Agglomeration Neighborhood will take over. Within the meantime, she is answerable for finishing up hazard research, however she hopes that the CDC will do the primary vital work.
“We should monitor it, management it, maybe rehabilitate it partly, however it’s vital that the assorted gamers can work collectively to suggest a rehabilitation, or maybe a brand new dyke which can have the traits to guard this sector , very delicate, of the airport space “. Thierry Mazel, deputy director of ports and airports of the CDC.
The safety degree of the dike should due to this fact be elevated, however the work is just not prepared to begin. The airport space is constrained by authorized texts and specifically by the flood threat prevention plan (PPRI). New research have to be launched within the first half of 2020, and a technique have to be adopted on January 1, 2023. No date is nevertheless indicated for short-term works.
Campu di l'Oru: a improvement that raises questions
Traditionally, we will additionally see that the move of the Gravona, a tributary river of the Prunelli 46.5 km lengthy, has seen its mouth drastically modified. The creation of the Ajaccio-Bastia and Ajaccio-Sartène territorial routes within the 1970s, in addition to the growth of the airport space, over time and as wanted, destroyed the pure move of water. The useless arm that runs alongside the Ricantu highway is proof of this, additionally it is the topic of cleaning and make-up elimination by the CAPA providers. That is what induced the flooding of a part of the 4 lane on the southern entrance to Ajaccio. Ought to we use this misadventure to rethink city improvement on the mouth of watercourses?
“These phenomena, which have at all times existed however which have been getting nearer and nearer for fifteen years, make us react so as to have the ability to resize and higher put together these equipments for local weather change”. Thierry Mazel, deputy director of ports and airports of the Collectivity of Corsica.
The injury brought on by the flooding on the airport website was estimated between € 300,000 and € 400,000.