Case study:Beentjesgraven

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Location: 52° 35' 45.38" N, 6° 15' 54.24" 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, Water quality
Country	Netherlands
Main contact forename	Sander
Main contact surname	Verheijen
Main contact user ID
Contact organisation	Waterschap Drents Overijsselse Delta
Contact organisation web site	http://www.wdodelta.nl
Partner organisations
Parent multi-site project	Buliding with nature measures in streams
This is a parent project encompassing the following projects	No

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Project summary

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The Beentjesgraven is a small waterway that discharges into the river IJssel. The water authority Drents Overijsselse Delta created more structural variation in this stream to improve their ecological quality and meet WFD criteria. The banks were divided into a green and a blue zone. In the blue zone, vegetation was regularly removed to ensure flow continuity. In the green zone, vegetation is removed less regularly and in a way that contributes to a varied flow structure.

Monitoring surveys and results

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Vegetation development is monitored by FLORON. Vegetation development is monitored by FLORON. Macroinvertebrates are monitored at 3-4 locations per stream as part of a regional project in the Marswetering, Overijssels Kanaal and Beentjesgraven. The overall ecological quality ratios of the three streams have improved.

Lessons learnt

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Image gallery

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Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Rijn River basin Rijndelta Subcatchment River name Vecht Area category 1000 - 10000 km² Area (km2) Maximum altitude category 100 - 200 m Maximum altitude (m) Dominant geology Siliceous, Organic Ecoregion Central Plains Dominant land cover Grassland, Intensive agriculture (arable), Broadleaf/mixed woodland (semi natural) Waterbody ID NL36_OWM_014 Other case studies in this subcatchment: Beneden Regge, De Doorbraak, Deurningerbeek, Dinkel Noord, Jufferbeek, Living Vechte-Dinkel, Marswetering, Midden Regge, Oude Bornschebeek, Oude Diep... further results Site Edit site Name Beentjesgraven WFD water body codes NL04_BEENTJESGRAVEN WFD (national) typology M1a WFD water body name Beentjesgraven Pre-project morphology Artificial channel Reference morphology Artificial channel Desired post project morphology Artificial channel Heavily modified water body Yes National/international site designation Local/regional site designations Protected species present No Invasive species present No 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 Edit project background Reach length directly affected (m) 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 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 Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications 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 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 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