Flood protection and flooding and dyke of canals and rivers — Haute-Garonne
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October 2008. Flood protection dam and submersion or dyke of canalised canals and rivers represented linearly They are referred to in Article 3260 of Decree No 2006-881 of 17 July 2006. A similar layer N_DIGUE_P describes the dikes in point form, for input under Cascade. Water retention dams are described in layers N_OUVRAGE_RETENUE_P and N_OUVRAGE_RETENUE_L
