Case study:Hierdense Beek

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Location: 52° 19' 22.30" N, 5° 42' 17.44" E

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Project overview

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Status	In progress
Project web site	http://www.sprengenbeken.nl/hierdense-beken/#Leuvenumse%20Beek
Themes	Habitat and biodiversity, Hydromorphology, Land use management - agriculture, Land use management - forestry, Monitoring
Country	Netherlands
Main contact forename	Christian
Main contact surname	Huising
Main contact user ID
Contact organisation	STOWA
Contact organisation web site	http://www.vallei-veluwe.nl/
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

Leuvenumse beek – dood hout brengt beek tot leven

Project summary

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Het bovenloopse deel van de Hierdensebeek heet de Leuvenumse beek, waar de bouwen met natuur werkzaamheden zijn uitgevoerd. De totale lengte van de hoofdloop (bovenloop + benedenloop) van de Hierdense beek is ongeveer 17 km. Sinds 1993 zijn hier werkzaamheden uitgevoerd om de ruimtelijke ordening, water kwaliteit en ecologie te verbeteren door het aantakken van de oude meander. In 1996/1997 is er een grote onderhoudsbeurt geweest aan de beek. De eerste Bouwen met Natuur werkzaamheden met dood hout zijn begonnen in 2011 en duurden tot 2013. Het gebruikte hout is afkomstig uit het bos direct rond de beek en is ingebracht als vlechtwerken om het water zo goed mogelijk erlangs te laten stromen. Behalve het gebruik van dood hout, is in 2014 het "Synergy-project" begonnen waar verschillende BmN maatregelen gecombineerd worden, zoals beschaduwen, maaibeheer en zandsuppletie. De universiteit van Amsterdam heeft onderzoek uitgevoerd om de invloed van het ingebrachte hout op de flora en fauna te onderzoeken. Dit experiment wordt uitgevoerd in het kader van het innovatieprogramma 'Beekdalbreed hermeanderen' van de Europese Kaderrichtlijn Water. Binnen deze richtlijn werken water- en natuurbeheerders samen om beekherstelmaatregelen zo efficient mogelijk te maken. Andere projectpartners betrokken projectpartners zijn Natuurmonumenten, Landschap Overijssel, Wageningen Unversiteit, onderzoeks instituut Alterra en de Universiteit Utrecht. Het programma is aanvakelijk geïnitieerd door Stichting Toegepast Onderzoek Waterbeheer (STOWA) en het Ministerie van Infrastructuur en Milieu subsidieert 70% van dit project.

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Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name Leuvenumse bos WFD water body codes WFD (national) typology R5 WFD water body name Pre-project morphology Single channel, slightly meandering Reference morphology Desired post project morphology 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 Naturally draining Dominant substrate Sand River corridor land use Woodland Average bankfull channel width category 5 - 10 m Average bankfull channel width (m) 99 m <br />0.009 km <br />900 cm <br /> Average bankfull channel depth category 0.5 - 2 m Average bankfull channel depth (m) 1.81.8 m <br />0.0018 km <br />180 cm <br /> Mean discharge category Less than 0.1 m³/s Mean annual discharge (m3/s) 0.080.08 m³/s <br />80 l/s <br /> Average channel gradient category Less than 0.001 Average channel gradient 0.001 Average unit stream power (W/m2) 0.0871733333333330.0872 W/m² <br /> Project background Edit project background Reach length directly affected (m) Project started 2013 Works started 2014/10/01 Works completed 2020/05/01 Project completed Total cost category 100 - 500 k€ Total cost (k€) 308308 k€ <br />308,000 € <br /> 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 100 - 500 k€ 196196 k€ <br />196,000 € <br /> Post-project management and maintenance 1 - 10 k€ 1500 euro/year"euro/year" is not declared as a valid unit of measurement for this property. Monitoring 100 - 500 k€ 104104 k€ <br />104,000 € <br /> Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Hydromorphology Continuity for organisms, water quality 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 Flow velocities Yes Yes No No No Quantity & dynamics of flow Yes Yes No No No Width & depth variation Yes Yes No No No 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 Macrophytes Yes Yes No No No [[]] No No No No No 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 Acid neutralising capacity Yes Yes No No No PH Yes Yes No No No Temperature Yes Yes No No No Transparency Yes Yes No No No Oxygen balance Yes Yes No No No 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