A key landmark in Brétigny-sur-Orge, the Carouge basin, popular for walking, relaxation, sports, and nature observation, is about to undergo a major transformation. The Syndicat de l’Orge, in collaboration with the Municipality, is launching an ambitious project to sustainably preserve this site, frequented by local residents and surrounding communities.
This structuring project for the environment and quality of life includes new public access facilities, improved water quality, flood prevention, and biodiversity development. Originally dug in the 1970s as a gravel pit and retention basin, the basin plays a crucial role in local water management and is designated as a Sensitive Natural Area (ENS) by the Department of Essonne.
The primary goal is to enhance the water's biological, physico-chemical, and chemical quality by promoting aquatic vegetation and habitat diversification. These improvements, aided by the filtering action of plants, will contribute to the site's ecological functionality and flood protection, increasing storage capacity by nearly 13,000 m³.
The project also aims to enrich local flora and fauna by creating quiet zones for birds, diversifying habitats for fish species, and strengthening wetland environments. The site's ecological richness will be enhanced while protecting the newly created habitats.
Nicolas Méary, Mayor of Brétigny-sur-Orge and Vice-President of the Department of Essonne for Ecological Transition, welcomes this project, which will improve visitor reception while preserving and further developing the site's natural wealth.
Existing uses such as walking, sports, nature observation, and fishing will be maintained and enhanced. Developments include doubling the number of picnic tables, installing sun loungers, and communal barbecues in a social area near the kiosk and children's playground. Accessibility for People with Reduced Mobility (PRM) will be improved with three new dedicated access points along the basin.
New educational panels for environmental awareness will also be installed. It is reminded that wild barbecues remain strictly prohibited outside the designated communal barbecue areas.
This investment of approximately €700,000 is co-financed by the Syndicat de l’Orge, the Department of Essonne, the Region Île-de-France, the Fonds Vert, and the Programme Nature 2050.
