Internal emergency action plans for dams - application to the Odelouca earthen dam

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Portuguese regulation classifies large dams in three classes according to the risk in the downstream valley. To Class 1 dams, corresponding to the maximum risk, an Internal Emergency action Plan (IEP) relative to the reservoir and to the near area of the downstream valley is demanded to dam owners. The information contained in the IEP constitutes the main guidelines to dam owner when facing adverse situations which may cause consequences to the dam itself and to the downstream valley. Odelouca dam in Algarve, recently built, is a 76 m high earthen dam with a storage volume of 157 hm3. An internal emergency plan was established to the first 17 km downstream the dam where about 110 persons lives. The elaboration of IEP for Odelouca dam followed novel directives from national civil protection authorities and it was based on two important premises: i) an adequate valley characterization based on an intensive valley survey and, ii) a solid numerical simulation of flood in case of dam break made with up-to-date physical based breaching and wave propagating models, RoDaB and STAV. In the present communication we present the key directives followed in the valley survey, the numerical modeling of the dam breaching and consequent flood, extracts of the flood risk maps and the main features of the action plan.
Original languageUnknown
Title of host publicationInternational Conference on Dam Engineering
Publication statusPublished - 1 Jan 2011
Event6th International Conference on Dam Engineering -
Duration: 1 Jan 2011 → …


Conference6th International Conference on Dam Engineering
Period1/01/11 → …

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