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	Waterschap Vallei en Veluwe
Contact organisation web site	http://www.vallei-veluwe.nl/
Partner organisations	STOWA
Parent multi-site project	Building with Nature measures in streams
This is a parent project encompassing the following projects	No

Leuvenumse beek – dood hout brengt beek tot leven

Project summary

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The upstream part of the Hierdensebeek is called the Leuveumse Beek, which is where Building with Nature measures were implemented. The main stream (upstream and downstream part) has a total length of approximately 17 km. Since 1993, efforts have been made to improve spatial planning, water quality and ecology by reconnecting an old meander. In 1996/1997 there has been large-scale maintenance to the stream. The first Building with Nature activities involving dead wood started in 2011 and ended in 2013. The wood that was used came from the woods directly adjacent tot he stream and was introduced in a braided pattern to allow for optimal throughflow. In addition to the usage of dead wood, the Syngery project started in 2014, in which various BwN measures are combined, like shading, altered mowing regimes and sand suppletion. The University of Amsterdam researched the effect of the wood that was introduced on the flora and fauna.

This experiment is being performed within the WFD innovation programme ‘Beekdalbreed hermeanderen’ (En: Re-meandering accross the stream valley’). As part of this directive, water and nature managers work together to make stream restoration measures as effective as possible. Other partners involved in the project are Natuurmonumenten, Landschap Overijssel, Wageningen University, Wageningen Environmental Research and Utrecht University. The programme was originally initiated by STOWA (Stichting Toegepast Onderzoek Waterbeheer). The Dutch ministry of Infrastructure and environment (Infrastructuur en Milieu) subsidises 70% of this project.

Source: https://www.sprengenbeken.nl/hierdense-beken/#Leuvenumse%20Beek

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Image gallery

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De beek bij Staverden

De monding van de Hierdense Beek ter plaatse van het randmeer

Hierdense Beek vanaf de brug bij de monding

Succesvol natuurherstel Leuvenumse beek

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, Low gradient passively 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 Sand deposit, dead wood deposit Floodplain / River corridor Planform / Channel pattern Other Shading Non-structural measures Management interventions Mowing management 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 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