Case study:Beekherstel Willinkbeek

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Location: 51° 59' 7.40" N, 6° 44' 40.31" E

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Project overview

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Status	Complete
Project web site
Themes	Environmental flows and water resources, Habitat and biodiversity, Monitoring
Country	Netherlands
Main contact forename	John
Main contact surname	Lenssen
Main contact user ID
Contact organisation	Waterschap Rijn en Ijssel
Contact organisation web site	http://www.wrij.nl/
Partner organisations	STOWA
Parent multi-site project	-
This is a parent project encompassing the following projects	No

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Project summary

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Stroomafwaarts van Döttekrö ontbreekt dynamiek in de Wilinkbeek omdat piekafvoer via Koppelleiding wordt afgevoerd. Veel trajecten hebben nog kunstmatig verhard talud en beekbodem als gevolg van puin en slakkenbestorting. Door deze puinbestorting weg te halen zal de beek een morfologisch afwisselende, kronkelende beek worden door bosstroken van tenminste 10 meter breed. Omdat erosie en sedimentatie vrij spel hebben, zulllen meanders, zandbanken en stroomkuilen zich vormen op telkens nieuwe plekken. De beek zal het grootste deel van het jaar afvoer hebben. Vanwege ligging in een vaak bosrijke omgeving hopen zich op rustige plekken in de beek bladeren, takken en boomstammen op. De beek is geheel optrekbaar voor vis.

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Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name Willinkbeek WFD water body codes NL07_0021 WFD (national) typology R5 WFD water body name Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body No National/international site designation Local/regional site designations Protected species present No Invasive species present No Species of interest Dominant hydrology Dominant substrate Keileem River corridor land use Plantation forestry Average bankfull channel width category 2 - 5 m Average bankfull channel width (m) 4.54.5 m <br />0.0045 km <br />450 cm <br /> Average bankfull channel depth category Less than 0.5 m Average bankfull channel depth (m) 0.20.2 m <br />2.0e-4 km <br />20 cm <br /> Mean discharge category 0.1 - 1.0 m³/s Mean annual discharge (m3/s) 0.2250.225 m³/s <br />225 l/s <br /> Average channel gradient category 0.001 - 0.01 Average channel gradient 0.0011 Average unit stream power (W/m2) 0.5393850.539 W/m² <br /> Project background Edit project background Reach length directly affected (m) Project started 2019 Works started Works completed 2019/12/01 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 Edit reasons for restoration Mitigation of a pressure Hydromorphology Width & depth variation Biology Physico-chemical Oxygen balance, PH, Temperature Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Puinbestorting verwijderd Floodplain / River corridor Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Other Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Width & depth variation Yes Yes No No No Improvement Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Physico-chemical quality elements Edit Physico-chemical quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Oxygen balance Yes Yes No No No Improvement PH Yes Yes No No No Improvement Temperature Yes Yes No No No Improvement Any other monitoring, e.g. social, economic Edit Other responses Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Monitoring documents Upload monitoring documents Additional documents and videos Upload additional documents Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information