1. General information
Location and description of the intervention
City or FUA
Nürnberg
Region
Europe
Native title of the NBS intervention
Bucht am Norikus
Short description of the intervention
New recreation zone "Norikus Bay" in Nurenberg was completed in 2018 on the south bank of the Wöhrder lake, an artificial lake created in 1968 to protect the city from flooding. The dam itself, which is a 400m long path separating a part of the water surface from the bigger part of the lake, has become a tourist attraction with a water playground and other recreational amenities being offered. The water is naturally cleaned through the regeneration zone with natural plant filter, and simultaneously improves the habitat of fish and makes recreational swimming in possible in the cleaner water. New green areas are organized on the shore in order to improve environmental, aesthetic and recreational conditions of the area (1, 7, 8).
Address

Nurnberg
Germany

Area boundary
POINT (11.10205 49.45173)
POINT (11.10533 49.45424)
POINT (11.10382 49.45142)
POINT (11.10205 49.45173)
NBS area image
Source of NBS area image
https://www.wasserweltwoehrdersee.bayern.de/zukunftsvisionen/badebucht/pic/2016_09_28_bild_01_lb.jpg
Total area
55000.00m²
NBS area
55000.00m²
Type of area before implementation of the NBS
Timeline of intervention
Start date of the intervention (planning process)
2011
Start date of intervention (implementation process)
2017
End date of the intervention
2018
Present stage of the intervention
Goals of the intervention
1. To create a new recreational area (1)
2. To sustain and enhance biodiversity (1)
3. Ecological improvement of the lake and surrounding areas (2)
4. To protect the city from flooding (2)
5. To improve the water quality in the lake (2)
6. To increase a flow velocity in the lake (2)
7. To reduce sludge deposition (2)
8. Improving the recreational quality of the shore surrounding the bay (7)
Quantitative targets
Unknown
Monitoring indicators defined
1. Water quality (2)
Habitats and biodiversity conservation: What types of conservation goals are / were defined for the NBS intervention?
What types of restoration goals are / were defined for the NBS intervention?
Implementation activities
1. A 400-meter long dam was created, separating a part of the water surface from the bigger part of the lake (1)
2. Reed plants for natural water filtering were planted (1)
3. New trees and greenery were planted on the shore (1)
4. A barrier-free access to water and recreational facilities were provided (1)
5. Benches and walkways were arranged (1)
6. A solid spillway was erected in order to allow water and fish to move freely (2)
7. 300,000 cubic meters of mud were removed from the bottom of the lake (3)
8. A water playground was created on the dam (8)
NBS domain and interventions
Ecological domain(s) where the NBS intervention(s) is/are implemented
Parks and urban forests
Large urban parks or forests
Blue infrastructure
Lakes/ponds
Other
Please specify "other blue area"
Bay (7); A water playground was created on the dam (8)
Vegetation Type
Please specify how many trees were planted
unknown quantity: New trees and greenery were planted on the shore (1)
Services
Expected ecosystem services delivered
Provisioning services
Raw materials
Water (surface and ground water for drinking and non-drinking purposes)
Regulating services
Flood regulation
Water purification / filtration
Mediation of smell / noise / visual impacts
Habitat and supporting services
Habitats for species
Maintenance of genetic diversity
Cultural services
Aesthetic appreciation
Recreation
Scale
Spatial scale
Micro-scale: District/neighbourhood level
Beneficiaries
Please specify "other primary beneficiary"
fish (2)
Governance
Governance arrangements
Please specify the roles of the specific government and non-government actor groups involved in the initiative
The project was initiated and led by the local government. The company GAUFF Engineering was commissioned by the Water Management Office Nürnberg (Wasserwirtschaftsamt Nürnberg) to prepare and implement the construction measures for the "Wöhrder See Water World" at Norikus bay. (4) The reconstruction of the bay was funded by the state of Bavaria, while the recreational facilities financed by the city of Nurnberg (5)
Key actors - initiating organization
Key actors - Other stakeholders involved (besides initiating actors)
Regional government
Local government/municipality
Public sector institution
Private sector/corporate actor/company
Land owners
Policy drivers
NBS intervention implemented in response to an Regional Directive/Strategy
Unknown
NBS intervention implemented in response to a national regulations/strategy/plan
Unknown
NBS intervention implemented in response to a local regulation/strategy/plan
Yes
Please specify the "local regulation/strategy/plan"
1. GAUFF Engineering was commissioned by the Wasserwirtschaftsamt (WWA) in Nuremberg to prepare and implement the construction measures for the "Wöhrder See Water World" within the execution of the security and health protection regulations (SiGeKo) at Norikus bay (4)
2. The project is realized within the Nurnberg urban development plan "Wöhrder See Water World" aimed at the regeneration of the Wöhrder lake (3)
Mandatory or voluntary intervention
Mandatory (based on policy)
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
The plans of the Nuremberg government and the Bavarian Environmental Administration stimulate numerous reorganization measures to ensure the long-term protection of the floodwater, to improve the lake landscape ecologically and to make it even more attractive for recreation seekers. (2)
If there is a relevant strategy or plan, please specify the theme / type of the plan.
Please specify other vegetation type
Natural plant filters; New green areas (1, 7, 8)
Reed plants for natural water filtering were planted (1)
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
The reconstruction of the bay was funded by the state of Bavaria, while the recreational facilities financed by the city of Nurnberg (5)
Co-finance for NBS
Yes
Co-financing governance arrangements
Unknown
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?
13,000,000 (5)
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)
A total of € 13 million has been invested until 2017, including Boulevard (€ 2.2 million), Sandstrand (€ 500,000), a stream (€ 1.4 million), Norikus Bay (400,000 euros) (5)
Non-financial contribution
Unknown
Which of the involved actors was motivated by this model?
Type of innovation
Please specify technological innovation
The bathing water in the bay is naturally cleaned through the regeneration zone with natural plant filter (1).
Novelty level of the innovation
Please specify novelty level of the innovation
This method of water cleansing is used in other natural baths projects in Germany (Reference not found from 2017)
Please specify Replicability/Transferability
unknown
Impacts, benefits
Description of environmental benefits
Before the intervention, there was hardly any water flowing through the Norikus Bay - therefore organic material and sediments were increasingly deposited at the bottom of the lake. As a result of the project, the dam separates the newly designed bay from the lake and ensures less deposits, reduces flood risk and improves the water quality and increases the number of fish and other aquatic species in the lake. (Ref. 2, 7) Through the design of the islands and bank zones, a new sea structure is created. This increases the flow rate, resulting in low deposits and small and young fishes receive new habitat (2)
The bathing water in the bay is naturally cleaned through the regeneration zone with natural plant filter (1).
Economic impacts
Description of economic benefits
Unknown
Please specify other environmental justice issue
reduces flood risk and improves the water quality and increases the number of fish and other aquatic species in the lake. (Ref. 2, 7)
Description of social and cultural benefits
The recreational value and aesthetic appreciation of the lake has been considerably increased, making the area popular for recreation and enabling swimming in the lake. (2)
Type of reported impacts
Indicators
Water quality (2)
Analysis of specific impact categories
Job creation: The NBS created ...
Environmental justice: The implementation of the NBS project resulted in ...
Please specify other method used to evaluate the impacts of NBS
By means of an extensive model investigation, the hydraulic engineers, therefore, determine the mechanisms of the mud deposition in the lake. On this basis, measures are developed which increase the flow velocity in the lake, if necessary, and thus substantially reduce sludge deposition (2).
citizen engagement: 1. Online forum: http://www.wasserweltwoehrdersee.de/ihre_meinung/wordpress/
2. Consultation with citizens on the intermediate results of the project (2)
Negative impacts: Did the project cause any problems or concerns?
No information was found regarding negative impacts of the project
COVID-19 pandemic
Unknown (in September 23 2020)
Methods of impact monitoring
Evidence for use of assessment
Presence of an assessment, evaluation and/or monitoring process
Yes
Presence of indicators used in reporting
Yes
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
By means of an extensive model investigation, the hydraulic engineers, therefore, determine the mechanisms of the mud deposition in the lake. On this basis, measures are developed which increase the flow velocity in the lake, if necessary, and thus substantially reduce sludge deposition (2).
Use of GIS in mapping impacts
No evidence in public records
Citizen involvement
Citizens involvement in assessment/evaluation
Yes
Mode(s) of citizen involvement in evaluation/assessment
Please specify other modes of citizen involvement in evaluation/assessment
1. Online forum: http://www.wasserweltwoehrdersee.de/ihre_meinung/wordpress/
2. Consultation with citizens on the intermediate results of the project (2)
Citizens involvement in the analysis of the assessment/evaluation
Unknown
Follow-up to the evaluation / assessment
Unknown
References
List of references
1. Stadtportal Nürnberg. (2017). Wöhrder See: Bucht am Norikus. [online]. Available at: https://www.nuernberg.de/internet/stadtportal/wasserwelt_woehrdersee.html [Accessed: 23 Sept. 2020]
2. Wasserwirtschaftsamt Nürnberg. (nd.) Der Wöhrder See - Wasserwelt im Herzen Nürnbergs. [online]. Available at: http://www.wasserweltwoehrdersee.de/ [Accessed: 23 Sept. 2020].
3. Nuernberginfos.de (2012). Wöhrder See. [online]. Available at: http://www.nuernberginfos.de/gewaesser-nuernberg/woehrder-see.html [Accessed: 23 Sept. 2020].
4. Gauff Engineering. (2017). Wasserwelt Wöhrder See. [online]. Available at: http://www.gauff.net/news/artikel/article/wasserwelt-woehrder-see-sicherheits-und-gesundheitsschutzkoordination-fuer-die-bucht-am-norikus.html [Accessed: 23 Sept. 2020].
5. Bayernkurier. (2016). Strand am Wöhrder See wird 120 Meter länger. [online]. Available at: https://www.bayernkurier.de/inland/10939-strand-am-woehrder-see-wird-120-meter-laenger/ [Accessed: 23 Sept. 2020].
6. Mittlerbayerische.de (2015). Wöhrder See wird zur Freizeit-Oase. [online]. Available at: http://www.mittelbayerische.de/region/nuernberg-nachrichten/woehrder-see-wird-zur-freizeit-oase-21503-art1242010.html [Accessed: 23 Sept. 2020].
7. Wasserwirtschaftsamt Nürnberg. (nd.) Bucht am Norikus. [online]. Available at: https://www.wasserweltwoehrdersee.bayern.de/zukunftsvisionen/badebucht/index.htm [Accessed: 23 Sept. 2020].
8. Biedenbacher.de (nd.) Norikus-Bucht Nürnberg. [online]. Available at: https://www.biedenbacher.de/oeffentliche-anlagen/oeffentliche-gruenanlagen/231-norikus-bucht-nuernberg.html [Accessed: 23 Sept. 2020].
Additional comments
2017 comments:
The monitoring system is present, due to its data often referred in the project-related publications. However, no monitoring documents/online tools are found so far.
Comments and notes
Public Images
Image
Bay at Norikus
Bay at Norikus
Photographer: Christine Dierenbach, retrieved 09/20/2018 from Data Exchange Service (City of Nürnberg)
Image
Bay at Norikus
Bay at Norikus
Photographer: Christine Dierenbach, retrieved 09/20/2018 from Data Exchange Service (City of Nürnberg)