Lot n°1 : A10 — affluents du Val de Loire : Sud Orléans, Brenne, Saint-Laurent (zones 1 à 3)

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This lot covers the study areas listed below, whose technical scope is identical for the whole of the contract and described in point 2.1. It includes, for each watercourse within its scope: the establishment of the rainfall and hydrological reference data, site visits, the definition of the needs for additional topographic and bathymetric surveys as well as monitoring of the corresponding services, hydrological and hydraulic modelling, the vulnerability diagnosis of the motorway platform and its structures, feasibility studies at the level of preliminary studies of the development solutions and the associated services. Lot no. 1 — Zones 1 to 3, A10 motorway, departments of Loiret (45) and Indre-et-Loire (37), approximately 19 km. Watercourses concerned: the Mauves and the Dourdaigne (South Orléans), the Brenne and the ruisseau de l'Archevêque, the Saint-Laurent. The scope of each zone (PR sections, watercourses to be modelled, structures concerned, available data) and the type of modelling envisaged will be detailed in the consultation file. The tenderer shall define and justify its modelling approach in its methodology note, which will be submitted to the contracting authority…

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