Case study:Buenz

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Project overview

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Status Complete
Project web site
Themes
Country Switzerland
Main contact forename
Main contact surname
Main contact user ID
Contact organisation Canton of Aargau
Contact organisation web site
Partner organisations
This is a parent project
encompassing the following
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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 Rhine
River basin Aare

Subcatchment

River name Buenz
Area category 100 - 1000 km²
Area (km2) 127 km²
12,700 ha
Maximum altitude category 500 - 1000 m
Maximum altitude (m) 800 m
0.8 km
80,000 cm
Dominant geology Calcareous
Ecoregion
Dominant land cover Extensive agriculture
Waterbody ID



Site

Name Bünzen
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology Straight, Embanked
Reference morphology Pool-riffle, High width:depth
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 Quick run-off
Dominant substrate Gravel
River corridor land use Intensive agriculture, Urban
Average bankfull channel width category 5 - 10 m
Average bankfull channel width (m)
Average bankfull channel depth category Less than 0.5 m
Average bankfull channel depth (m)
Mean discharge category
Mean annual discharge (m3/s) 0.4
0.4 m³/s
400 l/s
Average channel gradient category
Average channel gradient 0.002
Average unit stream power (W/m2)


Project background

Reach length directly affected (m)
Project started 2008/01/01
Works started
Works completed 2008/01/01
Project completed
Total cost category
Total cost (k€)
Benefit to cost ratio
Funding sources Canton of Aargau

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 Width & depth variation
Biology Fish: Species composition, Fish: Abundance, Invertebrates: Taxonomic composition, Invertebrates: Diversity
Physico-chemical
Other reasons for the project


Measures

Structural measures
Bank/bed modifications
Floodplain / River corridor
Planform / Channel pattern Channel widening
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
Width & depth variation Improvement

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

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Supplementary Information

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