Nature Based Solutions - Implementation Models Database

Pioneer Case

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
Location France, Bézannes
Latitude 49.227059
Longitude 3.998785
Status Project delivered
Dates 2012.0
Description of the NBS
NBS Scale object (building, etc.)
NBS Impacts scale neighbourhood
Urban density/ Soil consumption low (suburb at the limit with rural areas, etc.)
Combined with other(s) environmental friendly solution(s)?
if other
NBS Typology
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NBS Uban Challenges
Climate Issues Climate mitigation
Climate adaptation
Other 0;
Urban water management and quality Urban water management and quality
Flood management
Other 0
Air Quality Air quality at district/city scale
Air quality locally
Other 0
Urban Space and Biodiversity Biodiversity
Urban space design
Urban space management
Other 0;
Urban Regeneration and Soil Air quality at district/city scale
Other 0
Resource efficiency Food, energy and water
Raw materials
Other 0;
Public health and well-being Acustic
Quality of life
Other 0;
Environmental justice and social cohesion Environmental Justice: Recognition
Environmental Justice: Procedural Justice
Environmental Justice: Distributional Justice
Environmental Justice: Capabilities
Environmental Justice: Responsibility
Social Cohesion
Other 0;
Urban planning and governance Urban planning and form
Governance in planning
Other 0;
People Security Control of crimes
Control of extraordinary events
Other 0
Green economy Circular economy
Bioeconomy activities
Direct economic value of NBS
Other 0;
Stakeholder and Governance
Who Started this initiative? A public institution, a local organization (city or metropolitan)
Contracting Authority Reims Metropolis
Project manager (leader and main partners): entities names, and know-how involved Leader: Arria-Sinbio 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. Municipality Citizens
Cluster Governance Model Description
cluster2_new_public_ managementPartnership between Reims Metropolis and Arria-Sinbio (private compagny)
Global Estimated cost of the project 1M€- 5M€
Cluster cluster1_public_financing
FM Other
Description of the financing mechanism The project has received subsidies from the Champagne Ardenne region (25%) and from Reims Metropolis (75%)
Business Model
Class Type Description
TechnologicalSubstitute with renewables and natural processesThe 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.
Temporal Factor
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
Process Enablers
Class Subclass Type Description
Process Inhibitors
Class Subclass Type Description
What makes this project a pioneer?
Field The_implementation
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
IM Keywords
  • constructed wetland

References Ingénierie écologique appliquée aux milieux aquatiques, ASTEE, 2013