1. General information
Location and description of the intervention
City or FUA
Sevilla (FUA)
Region
Europe
Native title of the NBS intervention
Arroyo Ranillas
Short description of the intervention
Rehabilitation project of the Ranillas stream and its surrounding area, as part of the larger city project to rehabilitate the waterways connected to the Guadalquivir River. The project included transforming the covered canal into a green corridor connecting the Tamarguillo Park with the Infanta Elena Park. It sought to build pedestrian walkways, leisure spaces, lengthen the bike lanes, increase tree cover, and restructure the covering of the canal. (Ref 1-6)
Address

Avenida Republica de China
Sevilla
Spain

Area boundary
POINT (-5.927033 37.361142)
POINT (-5.944371 37.364553)
POINT (-5.92154 37.416789)
POINT (-5.910725 37.411744)
NBS area image
Source of NBS area image
Ref. 6
Type of area before implementation of the NBS
Please specify “other type of area” before implementation of the NBS
Waterway (Ref 2-6)
Timeline of intervention
Start date of the intervention (planning process)
pre-1990
Start date of intervention (implementation process)
2014
End date of the intervention
2015
Present stage of the intervention
Please specify "other" stage of the intervention
Reports say the project was set to be completed in 2015
Although the project is framed as an environmental rehabilitation, it is criticized for not incorporating nature into the intervention. The stream water canal continues to be covered by a concrete structure that is separated by a fence from the pedestrian/ bike lanes on either side of it. Effectively the water way is not rehabilitated and incorporated as a natural body, but covered up with further urbanization. (blog)
Goals of the intervention
- Establish a design solution that unites the hydraulogical aspects with the environmental requirements of the stream and its surroundings. (Ref 1)
- Maintain a slow hydrology cycle that adjusts to the uses and activities of the surroundings, as well as the compentency of the stream with the vegetative diversity of the canal. (Ref 1)
- Maximize the use of the ground between the canal covering and the roads. (Ref 1)
- Maintain the vegetation along the canal to reproduce the bio-diversity of the stream. (Ref 1)
- Build a green corridor connecting the Tamarguillo Park with the Infanta Elena Park, planting trees native to the area. (Ref 1)
- Connect the adjacent neighborhoods through the restructuring of the canal cover (pedestrian walkways) (Ref 1)
Quantitative targets
2 320 meters of rehabilitated green space along the riverside of the Ranillas stream/canal (Ref. 2,3,4)
100 new pine units and 8,100 square meters of seasonal meadow will be planted, projecting irrigation using sprinklers (Ref 3)
2.5 km construction of a pedestrian way parallel to the canal connecting the Parque del Tamarguillo with the Parque Infanta Elena to create a green corridor between the two. (Ref. 3)
2.5 km extension of the bike-lane network in the city along this green corridor. (Ref. 3,4)
4 hectares for sporting facilities (Ref 2)
1.3 hectares for family gardens/ orchards (Ref 2)
5. 6 hectares for rehabilitation of vegetation and green areas (Ref 2)
Replacement of the canal cover with a tubular structure, and restructuring of this cover in 5 places to create pedestrian ways and the 2 squares (1392 m2 total area of pedestrian walkways 18 by 6 meters each, and 2 small squares 18 by 36 meters each, to be added as part of the covering of the canal) (Ref. 3)
Installation of a watering system to support the vegetation (2 water wells each 20 meters deep to supply the drip-watering system) (Ref. 2)
Monitoring indicators defined
Length of green space [m] (Ref 3,4)); Number of pine unites (Ref 3); Area of meadow [m2] (Ref 3); Length of pedestrian way [km] (Ref 3); Area of pedestrian way [m2] (Ref 3); Length of bike network [km] (Ref 3,4); Area for sporting facilities [ha] (Ref 2); Area for orchards [ha] (Ref 2); Area of rehabilitated green space [ha] (Ref 2)
What types of restoration goals are / were defined for the NBS intervention?
What activities are implemented to realize the restoration goals and targets?
Implementation activities
Original canal cover built in 1964 (Ref 1)
2013- Proposal for reconstruction published (Ref. 2)
2014- Rehabilitation construction begins (manual clean-up of the area and analysis of the tree types in the zone) (Ref 3)
2015- Construction works concluded (Ref. 3,4)
2 320 meters of rehabilitated green space along the riverside of the Ranillas stream/canal (Ref. 3,4)
100 new pine units and 8,100 square meters of seasonal meadow will be planted, projecting irrigation using sprinklers (Ref 3)
2.5 km construction of a pedestrian way parallel to the canal connecting the Parque del Tamarguillo with the Parque Infanta Elena to create a green corridor between the two. (Ref. 3)
2.5 km extension of the bike-lane network in the city along this green corridor. (Ref. 3,4)
Development of leisure spaces (Ref 3)
Installation of fences (Ref 3)
Replacement of the canal cover with a tubular structure, and restructuring of this cover in 5 places to create pedestrian ways and the 2 squares (1392 m2 total area of pedestrian walkways 18 by 6 meters each, and 2 small squares 18 by 36 meters each, to be added as part of the covering of the canal) (Ref. 3)
Construction of family orchards along the banks (Ref. 2)
Installation of a watering system to support the vegetation (2 water wells each 20 meters deep to supply the drip-watering system) (Ref. 2)

*Noted that the neighborhood demand for this green space has been a process of over 30 years. (Ref 3)
In the end the construction of family orchards and accompanying drip-water system was suppressed. (Ref 5)
NBS domain and interventions
Ecological domain(s) where the NBS intervention(s) is/are implemented
Grey infrastructure featuring greens
Alley or street trees and other street vegetation
Institutional green space
Riverbank/Lakeside greens
Parks and urban forests
Green corridors and green belts
Community gardens and allotments
Community gardens
Blue infrastructure
Rivers/streams/canals/estuaries
Green areas for water management
Other
Please specify "other green areas for water management"
2 water wells each 20 meters deep to supply the drip-watering system (Ref. 2)
Please specify the number of plots or allotment gardens
1.3 hectares for family gardens/ orchards (Ref 2)
What is the level of innovation / development of the NBS related to water management?
Vegetation Type
Please specify how many trees were planted
Unknown; 'trees native to the area' (Ref 1)
Please specify other amenities offered by the NBS
pedestrian walkways,; Leisure spaces; bike lanes (Ref 1-6)
Amenities offered by the NBS
Services
Expected ecosystem services delivered
Provisioning services
Food for human consumption (crops, vegetables)
Raw materials
Water (surface and ground water for drinking and non-drinking purposes)
Regulating services
Other
Habitat and supporting services
Habitats for species
Cultural services
Aesthetic appreciation
Recreation
Mental and physical health and wellbeing
Physical and experiential interactions with plants and animals
Social and community interactions
Please specify "other regulating service"
tree cover (Ref 1-6)
Scale
Spatial scale
Micro-scale: District/neighbourhood level
Beneficiaries
Governance
Governance arrangements
Please specify the roles of the specific government and non-government actor groups involved in the initiative
Confederación Hidrográfica del Guadalquivir (CHG)- Regional Hydrology Body of the Guadalquivir river – project coordinator (Ref 3)
Ayuntamiento de Sevilla- City Government – project coordinator and provides some funding (Ref. 2, Ref. 3)
80% of funds financed by the ERDF of the European Union (Ref 3)
Key actors - initiating organization
Land owners
Key actors - Other stakeholders involved (besides initiating actors)
EU body
Regional government
Local government/municipality
Citizens or community group
Land owners
Participatory methods/forms of community involvement used
Policy drivers
NBS intervention implemented in response to an Regional Directive/Strategy
Unknown
NBS intervention implemented in response to a national regulations/strategy/plan
Yes
Please specify the national regulations/strategy/plan
Directiva Marco del Agua of 2000 that stipulates that water ways recuperate a good ecological status (Ref 2)
NBS intervention implemented in response to a local regulation/strategy/plan
Yes
Please specify the "local regulation/strategy/plan"
- Agreement of Collaboration signed by the Ministry of Agriculture, Nourishment and Environment, the Confederación Hidrográfica del Guadalquivir and the Urban Management of the city of Sevilla- 13 november 2003. (Ref 2)
- Urban Organization Plan of Sevilla, 2006. (Ref 1)
Mandatory or voluntary intervention
Mandatory (based on policy)
Intervention is mandatory
Enablers
Presence of specific city-level GI/NBS vision/strategy/plan - mentioned in connection to the project
Unknown
Presence of specific city-level GI/NBS section/part in a more general plan - mentioned in connection to the project
Yes
Please specify the general plan with GI/NBS section
- Agreement of Collaboration signed by the Ministry of Agriculture, Nourishment and Environment, the Confederación Hidrográfica del Guadalquivir and the Urban Management of the city of Sevilla- 13 november 2003. (Ref 2)
- Urban Organization Plan of Sevilla, 2006. (Ref 1)
If there is a relevant strategy or plan, please specify the theme / type of the plan.
Please specify other vegetation type
Unspecified: 'vegetation along the canal' (Ref 1); 'green corridor' (Ref 1); family orchards along the banks (Ref 2)
covered canal into a green corridor ; stream; vegetative diversity of the canal. (Ref 1) seasonal meadow (Ref 3)
Presence of city network or regional partnerships focused on NBS - mentioned in connection to the project
Unknown
Presence of GI / NBS research project - mentioned in connection to the project
Unknown
Subsidies/investment for GI / NBS in the city - mentioned in connection to the project
Yes
Please specify
80% of funds financed by the ERDF of the European Union (Ref 3)
Co-finance for NBS
Yes
Co-financing governance arrangements
Yes
Co-governance arrangement
Was this co-governance arrangement already in place, or was it set up specifically for this NBS?
Financing
What is/was the Cost/Budget (EUR) of the NBS or green infrastructure elements?
4 300 000 (Ref 3)
What are the total amount of expected annual maintenance costs?
Unknown
What is the expected annual maintenance costs of the NBS or GI elements?
Unknown
Please specify cost savings
Unknown
Please specify total cost (EUR)
Original budget was 7.640.872,66 euros (in presentation plan) (Ref 2)
Reported expenses in News articles at the end of the project were 4.3 million euros. 80% of funds financed by the ERDF of the European Union and 20% of funds from the local Ayuntamiento (city) budget (Ref. 3)
Non-financial contribution
Unknown
Please specify other Business model
Water management (Ref 1)
Which of the involved actors was motivated by this model?
Please specify technological innovation
Reshaping infrastructural fabric of canal to further incorporate it into the life of the surrounding area and create social spaces. (Ref 1)
Please specify novelty level of the innovation
Other canal system rehabilitations are mentioned as positive examples, such as the Arroyo Urbano, Madrid or the Cheonggyecheon canal in Seoul, but the Ranillas stream is compared to them for what it is lacking rather than its similarities. Since the Ranillas stream remains a covered canal it is criticized for not rehabilitating its connection to nature. (Ref 5)
Please specify Replicability/Transferability
Not mentioned as being transferred elsewhere.
Impacts, benefits
Description of environmental benefits
Green Space:
- 2 320 meters of rehabilitated green space along the riverside of the Ranillas stream/canal (Ref. 3,4)

Ecological Connectivity:
- 2.5 km construction of a pedestrian way parallel to the canal connecting the Parque del Tamarguillo with the Parque Infanta Elena to create a green corridor between the two. (Ref. 3)


Water Management:
- Rehabilitation construction (manual clean-up of the area and analysis of the tree types in the zone) (Ref 3)
Economic impacts
Description of economic benefits
Unknown
Description of social and cultural benefits
Access & Recreation:
- 2.5 km construction of a pedestrian way. (Ref. 3)
- 2.5 km extension of the bike-lane network in the city along this green corridor. (Ref. 3,4)

Safety: ‘strengthened in its safety conditions’, ‘improved security with fences’ (Ref 3)

Recreation: development of leisure spaces (Ref 3)
Reshaping infrastructural fabric of canal to further incorporate it into the life of the surrounding area and create social spaces. (Ref 1)
Type of reported impacts
Indicators
Length of rehabilitated green space [km] (Ref 3,4); Length of bike path [km] (Ref 3,4); Length of pedestrian way [km] (Ref 3)
Analysis of specific impact categories
Job creation: The NBS created ...
Environmental justice: The implementation of the NBS project resulted in ...
Negative impacts: Did the project cause any problems or concerns?
Yes
Please specify the negative impacts
Comment from Blogger (Cultura de Sevilla): ‘What was sold as an "environmental restoration project" is nothing more than a development on the banks of a stream that will remain buried and covered. A true environmental recovery would have consisted in the removal of the concrete cover that surrounds the stream, cleaning it and conditioning its banks to make its route a living natural environment’ (Ref 5)
Other canal system rehabilitations are mentioned as positive examples, such as the Arroyo Urbano, Madrid or the Cheonggyecheon canal in Seoul, but the Ranillas stream is compared to them for what it is lacking rather than its similarities. Since the Ranillas stream remains a covered canal it is criticized for not rehabilitating its connection to nature. (Ref 5)
COVID-19 pandemic
Unknown as of 30 September 2020
Methods of impact monitoring
Process of recording NBS impacts
Methods used to evaluate the impacts of NBS
Evidence for use of assessment
Presence of an assessment, evaluation and/or monitoring process
Unknown
Presence of indicators used in reporting
No evidence in public records
Presence of monitoring/evaluation reports
No evidence in public records
Availability of a web-based monitoring tool
No evidence in public records
Impact assessment mechanism
Name of any specific impact assessment tools
Unknown
Use of GIS in mapping impacts
No evidence in public records
Citizen involvement
Citizens involvement in assessment/evaluation
Unknown
Citizens involvement in the analysis of the assessment/evaluation
Unknown
Follow-up to the evaluation / assessment
Unknown
References
Documents relevant to the intervention
Attachment Size
Ref 1 (3 MB) 3 MB
Ref 2 (1.29 MB) 1.29 MB
List of references
1.Ayuntamiento de Sevilla. (2006). Acuerdo Plenario del Ayuntamiento de Sevilla. [Document provided].
2. Saura Martinez, Juan F. (2013). PROYECTO DE RESTAURACIÓN Y ACONDICIONAMIENTO AMBIENTAL DE ZONAS COLINDANTES CON EL ARROYO RANILLAS. T.M. SEVILLA- CLAVE: SE(DT)-4773. Confederacion Hidrografica del Guadalquivir. [Document provided].
3. Europa Press. (2015a). La restauración ambiental del canal del Ranillas finalizará en otoño. Available at: http://www.europapress.es/andalucia/sevilla-00357/noticia-restauracion-ambiental-canal-arroyo-ranillas-ejecutada-20-finalizara-principios-otono-20150414144814.html [Accessed: 30 September 2020].
4. Europa Press. (2015b). Zoido reivindica su “compromiso” con Sevilla Este y Alcosa. Available at: http://www.europapress.es/andalucia/sevilla-00357/noticia-zoido-reivindica-compromiso-sevilla-alcosa-visitar-obras-canal-ranilla-20150810150446.html [Accessed: 30 September 2020].
5. Harillo, P. por S. (2015). Sobre la “recuperación ambiental” del arroyo Ranillas. Available at: http://culturadesevilla.blogspot.com/2015/06/sobre-la-recuperacion-ambiental-del.html [Accessed: 30 September 2020].
6. Licon Ingenieria. (2015). Acondicionamiento ambiental Arroyo Ranillas. Available at: https://liconingenieria.com/?avada_portfolio=acondicionamiento-ambiental-arroyo-ranillas [Accessed: 30 September 2020].
Comments and notes
Comments
2020 comments:
Section 1/ Area Boundary: Unclear what the boundaries are for the stream, so I selected points that enclose the stream where it meets the Guadaira River, through the Infanta Elena Park to the Tamarguillo Park.

Section 4/ City-Level GI/NBS in General Plan: The intervention was mentioned in the 1987 Urban Organization Plan but was not developed until 2006 and implemented in 2014 (Ref Unknown)

Section 6/ Economic Impacts: The construction work the intervention needed is cited as having a positive impact on employment for the jobs it will create. (Ref Unknown)
Additional insights
2020 comments:
It is unclear from newspaper articles what the actual result of the project was. However, through comments and blog posts I deduced that it was not completed fully to plan with elements such as the construction of family orchards and the drip-watering system being suppressed.
Public Images
Image
Ranillas Stream 1
Source: Ref. 5
Image
Ranillas Stream 2
Source: https://commons.wikimedia.org/wiki/File:Arroyo_Ranilla,_Sevilla_Este,_Sevilla,_Espa%C3%B1a,_2015.JPG