Rivers and Wetlands
Restoring and preserving aquatic environments
and managing flood risks
Aquatic environments and wetlands are natural assets that must be protected for the biodiversity that they accomodate. Their good ecological condition is crucial for a number of functions and uses, such as drinking water production, watersports and leisure.
Restoring and preserving the quality of water is of course a global concern and is supported by constantly evolving regulations and laws (framework directives, environmental code, water management master plans, etc.).
Intervenir sur ces milieux, c'est également gérer les risques d'inondation puisqu'un habitant sur quatre et un emploi sur trois sont potentiellement exposés à des risques d'inondation en France.
Managing aquatic environments also means managing flood risks. 2.3 billion people were affected by flooding disasters in 20 years (US National Weather Service).
To answer these issues, we rally a full array of skills, ranging from diagnostics to works supervision for works implementation in different environments :
> Lakes and reservoirs
> River basins
• Restoration and mapping of aquatic environments :
- Hydrobiological inventories (accredited COFRAC laboratory No 1-5621 for the study of invertebrates and macrophytes (IBGN, IBG-DCE, IBMR)
- Delineation and characterisation of wetlands
- Hydromorphological studies
- Studies for the restoration of ecological continuity
- Definition of multiannual action programmes for river restoration and maintenance
- Project management for the restoration of water quality in rivers and wetlands
• Flood risk management
- Flood risk mapping
- Preparation of flood risk prevention and action plans
- Cost-benefit and multi-criteria analyses
- Vulnerability reduction study
- Hazard assessments
- Detailed technical inspections of dikes and dams
- Design and works supervision for flood protection works and structures
We provide these services using a global approach that involves dialogue with all stakeholders and brings necessary additional skills from SCE (urban planning and landscape, urban hydraulic, water process, agriculture and environment, integrated water resource management, etc.) and from other entities of the Keran group (environment and oceanography, GIS, etc.).