Case study:Bakenhof Dyke reconstruction: Difference between revisions
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|Contact organisation=River Restoration Centre | |Contact organisation=River Restoration Centre | ||
|Multi-site=No | |Multi-site=No | ||
|Project picture=Bakenhof luchtfotoaug02O.jpg | |||
|Project summary=Dike realignment took place utilising an area of former brickwork factory. The floodplain was widened by 200 meters and a new secondary channel created. The works also improved habitat connections, by increasing vegetation in the floodplain which will mature over time. The site is now popular for recreation, specifically for water sports, with Arnhem residents. | |Project summary=Dike realignment took place utilising an area of former brickwork factory. The floodplain was widened by 200 meters and a new secondary channel created. The works also improved habitat connections, by increasing vegetation in the floodplain which will mature over time. The site is now popular for recreation, specifically for water sports, with Arnhem residents. | ||
The channel capacity has increased to allow for significant changes in flow. There has been little effect on biological quality with regard to Water Framework Directive targets, as fish and benthic invertebrates were not monitored before the works were carried out. | The channel capacity has increased to allow for significant changes in flow. There has been little effect on biological quality with regard to Water Framework Directive targets, as fish and benthic invertebrates were not monitored before the works were carried out. |
Revision as of 09:45, 19 November 2012
Project overview
Status | Complete |
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Project web site | |
Themes | Flood risk management, Habitat and biodiversity |
Country | Netherlands |
Main contact forename | Nick |
Main contact surname | Elbourne |
Main contact user ID | User:NickRRC |
Contact organisation | River Restoration Centre |
Contact organisation web site | |
Partner organisations | |
Parent multi-site project | |
This is a parent project encompassing the following projects |
No |
Project summary
Dike realignment took place utilising an area of former brickwork factory. The floodplain was widened by 200 meters and a new secondary channel created. The works also improved habitat connections, by increasing vegetation in the floodplain which will mature over time. The site is now popular for recreation, specifically for water sports, with Arnhem residents.
The channel capacity has increased to allow for significant changes in flow. There has been little effect on biological quality with regard to Water Framework Directive targets, as fish and benthic invertebrates were not monitored before the works were carried out.
Monitoring surveys and results
Lessons learnt
Catchment and subcatchment
Edit the catchment and subcatchment details
(affects all case studies in this subcatchment)
Catchment
River basin district | Rhine |
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River basin | Rhine |
Subcatchment
River name | Rhine |
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Area category | 1000 - 10000 km² |
Area (km2) | |
Maximum altitude category | 1000 - 2000 m |
Maximum altitude (m) | |
Dominant geology | Siliceous |
Ecoregion | Central Plains |
Dominant land cover | Grassland, Urban |
Waterbody ID |
Other case studies in this subcatchment: Amerongse Bovenpolder, Blauwe Kamer, Room for the River, Ruppoldingen, Upper Main catchment restoration
Site
Name | |
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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) | |
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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 |
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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 | |
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Hydromorphology | |
Biology | |
Physico-chemical | |
Other reasons for the project |
Measures
Structural measures
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Bank/bed modifications | |
Floodplain / River corridor | |
Planform / Channel pattern | |
Other | |
Non-structural measures
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Management interventions | |
Social measures (incl. engagement) | |
Other |
Monitoring
Hydromorphological quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Biological quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Physico-chemical quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Any other monitoring, e.g. social, economic
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Monitoring documents
Image gallery
Additional documents and videos
Additional links and references
Link | Description |
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Supplementary Information
Edit Supplementary Information