Nature Based Solutions - Implementation Models Database

Pioneer Case

Ecological continuities restoration

A short description of the NBS project

The aim of this project is to connect two areas separated by a highway by creating a wildlife passage on an existing bridge in order to reinforce an ecological corridor. This structure is thought to allow cohabitation between fauna and motorists

NBS Implementation context
Location France, Saint-Etienne
Latitude 45.487275
Longitude 4.324692
Status Ongoing
Dates 2017.0
Description of the NBS
NBS Scale city
NBS Impacts scale city
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 Saint-Etienne Metropolis
Project manager (leader and main partners): entities names, and know-how involved Leaders: Saint-Etienne Metropolis (project manager)+ SOTREC and SOBERCO Main partners: Rhône Alpes nature protection federation, Rhône Alpes Conservatory of natural areas & Ecovia (Environmental consulting compagny)
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?) EPURES Urban Planning Agency
OPTIONAL Considering the actual impacts, who are the primary beneficiaries of the project. Local 1
Cluster Governance Model Description
cluster2_new_public_ management
Global Estimated cost of the project 50k€ - 200k€
Cluster cluster1_public_financing
FM Other
Description of the financing mechanism 40% ERDF, 40% Rhône-Alpes region, 20% self-financing
Business Model
Class Type Description
SocialAdopt a stewardship role
Temporal Factor
Expected time for the NBS to be fully effective after its implementation large (beyond 5 years)
Expected life time of the intervention around 25 years
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 Design_or_techniques_employed
Brief description of the innovativeness The aim of this project is create a wildlife passage on a existing bridge and therefore allows the cohabitation of fauna and motorists
Has the project received a prize, an award?
Has the project received a media coverage? (in reviews, in press, etc.)
IM Keywords
  • ecological continuity

  • wildlife passage