Hydraulic studies for the construction and urban development projects.

Why?


These studies make it possible to understand the functioning of watercourses, to know the characteristics of the watershed (geology, land use, etc.) and to evaluate water flows (floods, low flows, etc.). We also conduct geo-hydrological studies to understand the dynamics of rivers and watersheds. Through these studies, we do flood maps risk to identify the areas and sites at risk zone. The maps can be established in low or high resolution. These studies allow us to give realistic solutions adapted to the field.

The different types of hydraulic and hydrological studies


These two studies can be conducted as part of a risk study or a territory development. For a risk study, they aim to map the flooded areas and establish a regulatory zoning. For development studies, there are three types of projects:

- Crossing : hydraulic and hydrological studies make it possible to characterize the overall impact of the project on the flow conditions for project floods and to define and test possible compensatory or accompanying measures
- Création d’une plateforme en lit majeur : the studies allow to measure the hydraulic impact of the project for project floods as well as the impact of the destocking, to propose compensatory measures in case of need and to evaluate the impact
- Development on watercourse or its banks : the studies are used to determine the impact of the project on the flow conditions and in the establishment of any compensatory measures.

Interest of hydraulic and hydrological studies


Hydraulic studies provide an overview of the transfer and transport of water flows in a given river system. Coupled with hydrological analyzes, they make it possible to understand the mechanisms of flood generation.