Case study:Kleblach-Side channel

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Location: 46° 46' 34", 13° 20' 46"
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Project overview

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Status Complete
Project web site
Themes Habitat and biodiversity, Monitoring, Hydromorphology, Water quality
Country Austria
Main contact forename Wasserwirtschaft Kärnten
Main contact surname
Main contact user ID
Contact organisation
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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Catchment and subcatchment

Catchment

River basin district Danube
River basin Danube

Subcatchment

River name Drava
Area category 1000 - 10000 km²
Area (km2)
Maximum altitude category 200 - 500 m
Maximum altitude (m)
Dominant geology Siliceous
Ecoregion Alps
Dominant land cover Extensive agriculture, Grassland
Waterbody ID



Other case studies in this subcatchment: Revitalisation of branch ’Felsőszentmártoni’ at River Dráva, Revitalisation of branches ’Boros Dráva and Drávakeresztúri’, Water and Life for Drava and Vuka


Site

Name Klebach
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology Straight, Entrenched
Reference morphology Braided
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
Dominant substrate Gravel, Bedrock
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) 76m³/s
76,000 l/s
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m) 300 m
0.3 km
30,000 cm
Project started 1992/01/01
Works started 1997/01/01
Works completed 1997/01/01
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 Loss of lateral connection, Ecosystem degradation
Hydromorphology Channel pattern/planform, Quantity & dynamics of flow, Flow velocities, Continuity of sediment transport
Biology Invertebrates: Abundance, Invertebrates: Diversity, Fish: Abundance, Fish: Species composition
Physico-chemical
Other reasons for the project WFD status for the fish


Measures

Structural measures
Bank/bed modifications Planting
Floodplain / River corridor Removal of embankments
Planform / Channel pattern Creation of side channel, Creation of groynes
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
Flow velocities Yes Yes Improvement
Channel pattern/planform Yes Yes Improvement

Biological quality elements

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