Before the indentification of a public-private partner, the Fench Train Network wants to precise in the Detailed Design Project the characteristics of the areas concerned by the High Speed Line between Bretagne and Pays de la Loire (roughly 200 km) and design crossing structures.
- Initial conditions analysis of all identified stream (flood risk, weathering).
- Monitoring and definition of the stream flow.
- Definition and organization into a hierarchy of issues related to surface water.
- Definition of characteristics of roughly 200 crossing structures using hydrolic modeling and generic calculation.
Definition of detailed design project for crossing structure of the LGV (High Speed Train) and related building guidelines (protection from erosion risk).
Definition of measures for impact reduction during construction work and operating phases.