Case study:Millingerwaard-Floodplain rehabilitation

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Location: 51° 52' 16.32" N, 6° 0' 15.84" E

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Project overview

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Status	In progress
Project web site	http://www.ruimtevoorderivier.nl/waar-doen-we-dit/projecten/gelderland/uiterwaardvergraving-millingerwaard/
Themes	Habitat and biodiversity, Monitoring, Water quality
Country	Netherlands
Main contact forename	Rene
Main contact surname	Tank
Main contact user ID
Contact organisation	Dienst Landelijk Gebied
Contact organisation web site
Partner organisations	Rijkswaterstaat
Parent multi-site project	Case_study:Room for the River
This is a parent project encompassing the following projects	No

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Project summary

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This project lowers the waterlevels of the river Waal during high water events with 9 cm. This is achieved by lowering the ground surface level of the river foreland, and by digging new gullies, which will also create more natural conditions. As a result, a river dunes landscape interspersed with forest will (re)emerge.

Also see the infographic on http://issuu.com/ruimtevoorderivier/docs/uiterwaardvergraving_millingerwaard (Dutch)

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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 Rhine River basin Millingerwaard Subcatchment River name Waal Area category more than 10000 km² Area (km2) Maximum altitude category 100 - 200 m Maximum altitude (m) Dominant geology Calcareous Ecoregion Central Plains Dominant land cover Extensive agriculture, Urban Waterbody ID Other case studies in this subcatchment: Beneden-Leeuwen-Side channel, Buiten Ooij, Opijnen- Side channel Site Edit site Name Millingerwaard floodplain rehabilitation WFD water body codes WFD (national) typology R7 WFD water body name Pre-project morphology Sinuous, Single channel, High width:depth Reference morphology Single channel, Sinuous Desired post project morphology Heavily modified water body true National/international site designation Local/regional site designations Protected species present Invasive species present Species of interest Dominant hydrology Quick run-off, Tidal Dominant substrate Gravel, Sand River corridor land use Extensive agriculture, Urban Average bankfull channel width category 10 - 50 m Average bankfull channel width (m) Average bankfull channel depth category more than 10 m 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) 10000 m10 km <br />1,000,000 cm <br /> Project started 1990/01/01 Works started 1990/01/01 Works completed 2012/01/01 Project completed Total cost category more than 10000 k€ 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 Riparian development Hydromorphology Quantity & dynamics of flow, Structure & condition of riparian zones Biology Macrophytes Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Bank reprofiling Floodplain / River corridor Riparian planting, Creation of river dunes, Increase water retention area 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 Macrophytes Yes Yes Yes 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 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 http://www.ruimtevoorderivier.nl/meta-navigatie/english/ english website Supplementary Information Edit Supplementary Information