Nature Based Solutions - Implementation Models Database
Bézannes Joint Development Zone
A short description of the NBS project
Construction ex nihilo of a landscaped park as alternative stormwater management solution to a traditionnal civil engineering management (tubes) of a 172ha area in Bézannes (Reims Métropole). This project has been implemented in response to the waterproofing of this area (strong urbanisation level). The project is caracterized by an artificial river leading to a permanent lagoon and a reed bed. Then a wetland manage the water flow from the housing estate and finaly a stream collect all of the water.
The objective of the action is to manage rainwater of a 172ha area, in response to a waterproofing construction.
NBS Implementation context
Description of the NBS
object (building, etc.)
NBS Impacts scale
Urban density/ Soil consumption
low (suburb at the limit with rural areas, etc.)
Combined with other(s) environmental friendly solution(s)?
A public institution, a local organization (city or metropolitan)
Project manager (leader and main partners): entities names, and know-how involved
Main partners: Comsept, Ingeba, MDP/Michel Desvigne (landscape architect)
Who (else) was involved in the project ? (Inhabitants, local association, etc.)
More detail on the process and the role of the different stakeholders (How did it happen?)
GUINTOLI has been involved in basins layout
ISS Espaces Verts agence de Reims has been involved in basins planting
EDIVERT has been involved in landscaping
SCEE -> lighting
OPTIONAL Considering the actual impacts, who are the primary beneficiaries of the project.
Partnership between Reims Metropolis and Arria-Sinbio (private compagny)
Global Estimated cost of the project
Description of the financing mechanism
The project has received subsidies from the Champagne Ardenne region (25%) and from Reims Metropolis (75%)
Substitute with renewables and natural processes
The project has been implemented as a substitution of a civil engineering project. It leans on ecological engineering (infiltration areas, use of specific plants) to manage stormwater in a waterproof area therefore is based on a deep understanding of constructed wetlands for water management.
Expected time for the NBS to be fully effective after its implementation
short (immediately to few months)
Expected life time of the intervention
more than 30
Already feedbacks on the project? In case, the project has already been adapted to new requisites, please explain the modifications brought
Success and limiting factors
What makes this project a pioneer?
Brief description of the innovativeness
1) The project has been implemented as a substitution of a civil engineering project
2) Combination of ecological (rainwater management) and landscape functions (open to the public)
Has the project received a prize, an award?
Has the project received a media coverage? (in reviews, in press, etc.)
Lunion, 2013, Bezannes Balade au fil de leau, Lunion
Ingénierie écologique appliquée aux milieux aquatiques, ASTEE, 2013