Case study:Thur

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Project overview

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Status Complete
Project web site
Themes
Country Switzerland
Main contact forename Marco
Main contact surname Baumann
Main contact user ID
Contact organisation Canton of Thurgau
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 Rhine
River basin Thur

Subcatchment

River name Thur
Area category 1000 - 10000 km²
Area (km2) 1695 km²169,500 ha <br />
Maximum altitude category
Maximum altitude (m)
Dominant geology Calcareous
Ecoregion
Dominant land cover Extensive agriculture
Waterbody ID



Site

Name Neunforn/Altikon
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology Single channel, Embankment, Straight
Reference morphology Braided
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 Groundwater
Dominant substrate Gravel
River corridor land use Intensive agriculture, Extensive agriculture, Urban
Average bankfull channel width category 10 - 50 m
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) 2000 m2 km <br />200,000 cm <br />
Project started 2002/01/01
Works started
Works completed 2002/01/01
Project completed
Total cost category
Total cost (k€)
Benefit to cost ratio
Funding sources Cantons of Thurgau and Zurich

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 Connection to groundwaters, Continuity of sediment transport, Width & depth variation, Channel pattern/planform
Biology
Physico-chemical
Other reasons for the project


Measures

Structural measures
Bank/bed modifications Removal of northern overbank
Floodplain / River corridor Reconnection of the alluvial forest to the active floodplain
Planform / Channel pattern Creation of braided channel
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
Connection to groundwaters Yes Yes 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

Link Description

Supplementary Information

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