National Id
Germany-02
Site name
Osterbek and Bille river
Summary
The measures implemented at two river within the city of Hamburg (Germany) included the restoration of rivers and ponds (N1), the revitalization of flowing waters (N5), natural bank stabilization (N10), and channels and rills (U5). They targeted the National Biodiversity Strategy of Germany as well as the achievement of a good ecological status as defined by the WFD. For the identification of locations for possible measures the general public was involved using online forms. The implementation was then carried out by a local chapter of the German nature conservation NGO NABU. This NWRM proves to be highly effective while easy and cheap to implement, it is therefore considered a success.
Light or indepth?
In-depth
The in-depth description of the case study
cs-de_02-hamburg_final_version.pdf
NUTS Code
Hamburg
RBD code
DE5000
Transboundary
0
Data provider
Tamer Fawzy / BEF DE
Source(s)
Small scale measures under the "Waters neighborhood Days" in Hamburg - Factsheet
Kleinteilige Maßnahmen im Rahmen der „Gewässernachbarschaftstage“ in Hamburg Urbane Gewässer, Sohlstruktur, Kooperation
NWRM(s) implemented in the case study
Natural bank stabilisation
Stream bed re-naturalization
Longitude
10.094004
Latitude
53.600178
Climate zone
cool temperate moist
Mean annual rainfall
0 - 300 mm
Mean rainfall unit
mm/year
Average temperature
9
Mean runoff unit
450 - 600 mm
Type
Actual Test Site
Mean annual runoff range
150 - 300 mm
Monitoring impacts effects
0
Performance impact estimation method
Catchment outlet
Performance impact estimation information
Monitoring
Application scale
River
Installation date
2006-02
Lifespan
5
Age
8
Performance timescale
< 1 year
Size
370
Size unit
m
Design capacity description
N.A.
Constraints
N.A.
Favourable preconditions
N.A.
Design contractual arrangement
Arrangement type Responsibility Role Comments Name
Design consultation activity
Activity stage Key issues Name Comments
Via a Form, which is available for download under www.NABU-Hamburg.de/wasser, the interested public can contribute their own proposals for local measures. The proposed measures for the two river sections were developed with the technical assistance of the NABU experts for water protection.
Design land use change
Land use change type
Design authority
Authority type Role Responsibility Name Comments
NGO
Implementation
Tobias Ernst
Key lessons
After the first flood events it is visible, that the water body structure at the Middle Bille has been significantly improved. Due to different flow speeds and variability of the basin structure a positive short to medium term impact on biodiversity can be assumed.
Financing mechanism
0
Financing difficulties
0
Success factor(s)
Success factor type Success factor role Comments
Attitude of the public
main factor

voluntary work
Financing
Financing type Comments
Local funds
Barrier
Barrier type Barrier role Comments
Other
main barrier
none
Driver
Driver type Driver role Comments
Organisation committed to it
main driver
Biodiversity and gene-pool conservation in riparian areas
Financing share
Financing share type Share Comments
Policy description
N.A.
Part of wider plan
1
Policy target
Target purpose
Erosion Control
Improved Biodiversity
Runoff control
Policy pressure
Pressure directive Relevant pressure
Policy area
Policy area type Policy area focus Name Comments
Policy impact
Impact directive Relevant impact
Policy wider plan
Wider plan type Wider plan focus Name Comments
National Biodiversity Strategy
Policy requirement directive
Requirement directive Specification
Costs investment
1270
Costs investment information
Through the volunteer work of the project as well as the numerous helpers on the one hand and the charitable work of young people on the other hand no additional costs incurred.
Costs total
1270
Ecosystem improved biodiversity
1
Information on Ecosystem improved biodiversity
prefferable situations were established for plant and animal communities
Ecosystem provisioning services
0
Ecosystem water supply
0
Ecosystem impact climate regulation
No specific impact
Information on retained water
N.A.
Information on increased water storage
N.A.
Information on runoff reduction
N.A.
Soil quality overall soil improvements
N/A info
Information on Soil quality overall soil improvements
N.A.