| Titre | Un exemple de catastrophe hydrologique évitée : l'obstruction de l'Arc par la crue du torrent de l'Envers en juin 1992 / An example of the avoidance of a hydrological catastrophe : the blocking of the Arc by the flooding of the Envers torrent in June 1992 | |
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| Auteur | Alain Marnezy | |
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Revue |
Géocarrefour Titre à cette date : Revue de géographie de Lyon |
| Numéro | volume 68, no 2-3, 1993 Risques naturels dans le couloir rhodanien : les excès pluviométriques | |
| Page | 193-202 | |
| Résumé anglais |
On 2 June 1992 the Envers torrent (in the commune of Sollières-Sardières in Savoie) experienced a new flood with a heavy torrential charge. Material damage was relatively limited, but debris blocked the river bed of the Arc causing the formation of a dam lake. Action by the Department's engineering services enabled the rapid emptying of the lake. Heavy rainfall provokes the formation of a torrential lava, although the basic condition for this to occur is the availability of loose material. The Savoie Service for the Restoration of Mountainous Terrain considers it is impossible to carry out further corrective work on the river basin itself due to the extreme instability of the slopes. As a result it is proposed to create a depositional platform on top of the dejection cone. Source : Éditeur (via Persée) |
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| Article en ligne | http://www.persee.fr/web/revues/home/prescript/article/geoca_0035-113x_1993_num_68_2_5856 |
