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Les crues de l'Isère à Grenoble et l'aménagement actuel des digues

1969; Institute of Urban Planning and Alpine Geography; Volume: 57; Issue: 1 Linguagem: Inglês

10.3406/rga.1969.3391

1760-7426

Huguette Vivian,

Water management and technologies

Summary. — Despite the construction of retaining walls designed to protect the people living alongside the river Isère from rising waters, the town of Grenoble is still threatened by floods. Although for more than a century the river Isère has not known big floods (about 1 500 to 2 000 ms/s), such a possibility of flooding should not be dismissed. A calculation of the frequency of such floods-would allow that the maximum flow of 1 500 m'/s constitutes a centenary flood; now, on last September 23, the Isère rolled 1 000 m'/s at Grenoble, and overflowed, as foreseen, at certain weak points in the wall embankment. Therfore, il would seem vital to insure an efficient protection of that town.