Nature Based Solutions - Implementation Models Database

Implementation model

Zorrotzaurre district

A short description of the NBS project

Bilbao’s Zorrotzaurre district was a degraded, flood-prone industrial peninsula. Considering the increasing extreme precipitation predicted across the Basque country in the future due to climate change and the high demand of new housing and related infrastructure from Bilbao citizens, a major urban regeneration project is currently underway to redevelop Zorrotzaurre district into a new flood-proof residential quarter. In order to create a balanced urban development, 50% of new housing units are allocated as social housing and sold at a later stage. The new quarter is well-connected to the rest of the city, equipped with affordable housing, areas for environmentally-friendly industry and two thirds of Zorrotzaurre is reserved for public uses, including open green areas to be enjoyed by the local community and visitors alike and public facilities for educational, health, sport and cultural uses. The formation of this "mix" of residential (housing), public and economic activities aims to reduce mobility needs of the quarter’s inhabitants and stimulate space for artistic and creative innovation. Hence, Zorrotzaurre aims to grow into a ‘creative island’. To protect Zorrotzaurre from flooding, several measures are being taken: • Opening up the Deusto canal: the opening of the canal reduces the flood potential by creating increased water capacity and thereby decreasing the height of the water surface. With this adaptation measure in place, decreases of flood levels between 1m and 0.5m can be achieved. • Elevation of the ground level: during the first phase of the project the surface in the east and west of the Zorrotzaurre peninsula/island is elevated by 1.5m so that new buildings can be constructed on a higher level. This should protect the new buildings from T=500 rainfall events. • Construction of a flood protection wall: to protect the 47 existing buildings (including 352 apartments) on the peninsula (mostly located next to the river) a 1m high flood protection barrier is constructed. This barrier should ensure that existing buildings are protected from flooding from T=100 rainfall events. • Green, open spaces: the 7.5km long river bank is mostly (95%) 20m wide public space for pedestrians and bikers, partly at the current level and partly at the elevated level. Some of this area can be used as an overflow area for the river. The green open spaces are concentrated on both edges of the island and on the canal side, with major walkways on both banks of the canal, as well as a linear park of 40.000sqm in the central area of the island. The gardens of Botica Vieja on the opposite side of the canal will be extended and increased in size and connected by the new bridges to the open spaces on the Zorrotzaurre island. The network is complemented with “green fingers” of more than 5.000sqm extending across the island from the canal to the pathway located on the riverbank. • Provision of storm water tanks: 3 storm water tanks are provided to store excess water, one in San Ignacio (620mc) and two in Ribera de Duesto (2.100mc) (two neighbourhoods on the other side of the canal).

NBS Implementation context
Location Spain, Bilbao (Spain)
Latitude
Longitude
Status Ongoing (since 2015)
Dates
Description of the NBS
NBS Scale neighbourhood
NBS Impacts scale • Object (building, etc.) • Neighbourhood • City
Urban density/ Soil consumption Medium
Combined with other(s) environmental friendly solution(s)?
if other
NBS Typology
Open the NBS Solution Explorer
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
Waste
Recycling
Other 0
Public health and well-being Acustic
Quality of life
Health
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
Other
Stakeholder and Governance
Who Started this initiative? Market • Private sector (main entities: Sociedad Promotora Inmobiliaria Margen Derecha S.L., Vicinay Cadenas S.A.)
Contracting Authority
Project manager (leader and main partners): entities names, and know-how involved
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?)
OPTIONAL Considering the actual impacts, who are the primary beneficiaries of the project.
Cluster Governance Model Description
cluster2_new_public_managementPublic_private_partnership The Comisión Gestora de Zorrotzaurre supervises the redevelopment plan and members contribute financially in proportion to the share of the land they own. The costs for opening the Deusto canal are budgeted at €20.9 million and will be taken up by the City Council while the Basque government will finance the costs of one of the new bridges. The municipality will also pay for the flood protection barrier (€5.1 million, including the structural rehabilitation of the river bank) and the storm water tanks (costs estimated at €4.74 million). The costs for the ground level elevation and public, green spaces (as well as the other redevelopment costs) are paid by the Comisión Gestora de Zorrotzaurre. The residents of Zorrotzaurre are excluded from membership as they are not supposed to pay for any costs of the project. However, together with the neighbourhood association, they are involved in the design and development of the plans for which various interactions with the project managers have taken place.
Financing
Global Estimated cost of the project more than 5M€
Cluster cluster4_public_private
FM • Private Finance Iniative PFI
Description of the financing mechanism The Comisión Gestora de Zorrotzaurre supervises the redevelopment plan and members contribute financially in proportion to the share of the land they own. The costs for opening the Deusto canal are budgeted at €20.9 million and will be taken up by the City Council while the Basque government will finance the costs of one of the new bridges. The municipality will also pay for the flood protection barrier (€5.1 million, including the structural rehabilitation of the river bank) and the storm water tanks (costs estimated at €4.74 million). The costs for the ground level elevation and public, green spaces (as well as the other redevelopment costs) are paid by the Comisión Gestora de Zorrotzaurre. The residents of Zorrotzaurre are excluded from membership as they are not supposed to pay for any costs of the project. However, together with the neighbourhood association, they are involved in the design and development of the plans for which various interactions with the project managers have taken place.
Business Model
Class Type Description
-
Temporal Factor
Expected time for the NBS to be fully effective after its implementation
Expected life time of the intervention
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
Knowledge_driversGeneration of evidence Awareness • Research on benefits; • Climate Change -
Governance_driversSelf- governance Co-creation and participation • Emerging partnerships; • Cross sectorial spaces and partnerships • Tools to build a common vision
Economy_driversGovernment support • Public-private partnerships
Process Inhibitors
Class Subclass Type Description
Knowledge_drivers-
Governance_driversComplexity of governance structure • Apathy • Role ambiguity
Economy_drivers-
What makes this project a pioneer?
Field
Criteria
Brief description of the innovativeness
Has the project received a prize, an award?
Has the project received a media coverage? (in reviews, in press, etc.)
IM Keywords
References