Case study:Wummewiesen restoration project

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Location: 53° 6' 0", 8° 26' 24"
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Project overview

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Status Complete
Project web site
Themes Habitat and biodiversity, Water quality, Monitoring
Country Germany
Main contact forename
Main contact surname
Main contact user ID
Contact organisation WWF
Contact organisation web site
Partner organisations
This is a parent project
encompassing the following
projects
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Project summary

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Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

Catchment

River basin district Wumme
River basin Weser

Subcatchment

River name Wumme
Area category
Area (km2)
Maximum altitude category
Maximum altitude (m)
Dominant geology Siliceous
Ecoregion Central Plains
Dominant land cover
Waterbody ID



Site

Name Wumme
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology Single channel, Straight
Reference morphology Sinuous
Desired post project morphology
Heavily modified water body true
National/international site designation
Local/regional site designations
Protected species present
Invasive species present
Species of interest
Dominant hydrology Quick run-off, Groundwater
Dominant substrate Bedrock, Gravel
River corridor land use Extensive agriculture
Average bankfull channel width category
Average bankfull channel width (m)
Average bankfull channel depth category
Average bankfull channel depth (m)
Mean discharge category
Mean annual discharge (m3/s)
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m) 600 m
0.6 km
60,000 cm
Project started
Works started 1996/01/01
Works completed 1998/01/01
Project completed
Total cost category 1000 - 5000 k€
Total cost (k€)
Benefit to cost ratio
Funding sources Ministry of the Environment in Bremen, Federal Government

Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design
Stakeholder engagement and communication
Works and works supervision
Post-project management and maintenance
Monitoring



Reasons for river restoration

Mitigation of a pressure Agriculture
Hydromorphology Quantity & dynamics of flow, Continuity for organisms, Continuity of sediment transport
Biology Invertebrates, Fish: Abundance
Physico-chemical
Other reasons for the project Landscape enhancement


Measures

Structural measures
Bank/bed modifications Weir removal, Removal of rip-rap, Bank reprofiling
Floodplain / River corridor Extensive planting, Vegetation management, Increase water retention area
Planform / Channel pattern Creation of new river arm, Creation of fish passes
Other
Non-structural measures
Management interventions
Social measures (incl. engagement) Land purchase
Other


Monitoring

Hydromorphological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Biological quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative
Invertebrates Yes Yes Yes Improvement
Fish: Abundance Yes Yes Improvement

Physico-chemical quality elements

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Any other monitoring, e.g. social, economic

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative


Monitoring documents



Additional documents and videos


Additional links and references

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Supplementary Information

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