Case study:Re-establishing a natural water flow level in the "Mølleåen" river system

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Location: 55° 48' 10", 12° 32' 19"
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Project overview

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Status Complete
Project web site
Themes Habitat and biodiversity, Hydromorphology
Country Denmark
Main contact forename Ida
Main contact surname Dahl-Nielsen
Main contact user ID
Contact organisation The Nature Agency, Danish Ministry of the Environment.
Contact organisation web site http://www.naturstyrelsen.dk/
Partner organisations
Parent multi-site project
This is a parent project
encompassing the following
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Project summary

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This LIFE project aimed to re-establish a natural water flow level of the river by transporting sufficiently treated wastewater back to the river ecosystem, with insights to implement a concerted conservation action plan to restore and maintain a good conservation status of selected habitat types and species of the four Natura 2000 sites in within the Mølleåen river ecosystem. The restoration also aims to address eutrophication, watercourse modification and encroachment.

Monitoring surveys and results

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It is expected that the project will improve the conditions of the biodiversity in the restored area, contributing to halting the loss of biodiversity.

Lessons learnt

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To be used as a reference in river restoration science on how to re-establish a natural flow regime in other European river systems near urban areas.


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Catchment and subcatchment



Site

Name
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology
Reference morphology
Desired post project morphology
Heavily modified water body
National/international site designation
Local/regional site designations
Protected species present
Invasive species present
Species of interest
Dominant hydrology
Dominant substrate
River corridor land use
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)
Project started
Works started
Works completed
Project completed
Total cost category
Total cost (k€)
Benefit to cost ratio
Funding sources

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
Hydromorphology
Biology
Physico-chemical
Other reasons for the project


Measures

Structural measures
Bank/bed modifications
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)
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

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

Link Description
http://ec.europa.eu/environment/life/project/Projects/index.cfm?fuseaction=search.dspPage&n proj id=3352 LIFE project description 2012
http://ec.europa.eu/environment/life/publications/lifepublications/compilations/documents/natcompilation07.pdf Nature and Biodiversity projects 2007

Supplementary Information

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