Case study:Beekherstel Leerinkbeek

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Location: 52° 4' 51.16" N, 6° 34' 52.99" E

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Project overview

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Status	Complete
Project web site
Themes	Flood risk management, 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	Building with Nature measures in streams
This is a parent project encompassing the following projects	No

Leerinkbeek

Project summary

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The Leerinkbeek water body is classified as a river under the WFD system. It is an R5 category water body: slow-flowing middle/lower reach on sand. The entire Leerinkbeek is managed by water authority Rijn en IJssel. The water body is located in the province of Gelderland, municipality Berkelland. It is 8,4 km long and has a catchment of 4051 hectares. The water body consists of a single channel. The water body originates in the Hupselse Beek, near the loam pits at Zwilbrock. The Leerinkbeek discharges into the Berkel. Water levels in the Leerinkbeek are managed with six adjustable weirs. None of these weirs are passable for fish. In the Leerinkbeek water body, a single maximum water level is pursued for each managed stretch, for which the weirs are used. In dry periods, the 44 upstream stretches of the water body run dry. There are no sewage treatment plants present in the catchment of the Leerinkbeek.

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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 Berkel Area category 100 - 1000 km² Area (km2) Maximum altitude category Less than 100 m Maximum altitude (m) 2323 m <br />0.023 km <br />2,300 cm <br /> Dominant geology Siliceous Ecoregion Central Plains Dominant land cover Grassland, Intensive agriculture (arable), Broadleaf/mixed woodland (semi natural) Waterbody ID NL07_0016 Other case studies in this subcatchment: Beekherstel Eefsebeek, Beekherstel Ramsbeek, Beekherstel Willinkbeek, Beneden-Berkel, Boldersbeek Site Edit site Name Leerinkbeek WFD water body codes NL07_0019 WFD (national) typology R5 WFD water body name Pre-project morphology Sterk veranderend Reference morphology Actively meandering 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 Artificially regulated Dominant substrate Sand, Keileem en Dekzand River corridor land use Grassland Average bankfull channel width category 2 - 5 m Average bankfull channel width (m) 22 m <br />0.002 km <br />200 cm <br /> Average bankfull channel depth category 0.5 - 2 m Average bankfull channel depth (m) 0.50.5 m <br />5.0e-4 km <br />50 cm <br /> Mean discharge category 1 - 10 m³/s Mean annual discharge (m3/s) 3.73.7 m³/s <br />3,700 l/s <br /> Average channel gradient category 0.001 - 0.01 Average channel gradient 0.0016 Average unit stream power (W/m2) 29.0287229.029 W/m² <br /> Project background Edit project background Reach length directly affected (m) Project started 2007/2015"2007/2015" contains a sequence that could not be interpreted against an available match matrix for date components. Works started Works completed 2015/12/31 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 Channel pattern/planform, Continuity for organisms, Flow velocities Biology Fish, Invertebrates Physico-chemical PH, Oxygen balance, Nutrient concentrations, Temperature Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Beschaduwing Floodplain / River corridor Dood hout inbreng 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 Flow velocities Yes Yes No No No Improvement Substrate conditions 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 Fish Yes Yes No No No Improvement Invertebrates Yes Yes No No No Improvement 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 Nutrient concentrations Yes Yes Yes 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 Concentration phosphate, Chloride and Nitrogen Yes Yes Yes No No Improvement 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