Case study:Midden Regge

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Location: 52° 25' 10.17" N, 6° 27' 47.10" E
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Project overview

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Status Complete
Project web site http://www.vechtstromen.nl/buurt/gemeenten/wierden/midden-regge/
Themes Habitat and biodiversity, Hydromorphology, Water quality
Country Netherlands
Main contact forename Maarten
Main contact surname Zonderwijk
Main contact user ID
Contact organisation Waterschap Vechtstromen
Contact organisation web site http://www.vechtstromen.nl
Partner organisations
Parent multi-site project

Building with nature measures in streams

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encompassing the following
projects
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Project summary

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Restoration measures in the middle part of the river Regge are part of plans to restore the whole river. In 2006, the streambed was made made more narrow and given a meandering trajectory. Some abondoned meanders were reconnected to the stream. The bed was elevated further. Mowing in the main channel was suspended, while the floodplains were maintained by grazers.

Monitoring surveys and results

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These measures created a varied landscape with low natural levees. Some isolated meanders got a more grassy vegetation than intended because of a high nutrient load.

Lessons learnt

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Catchment and 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: Beentjesgraven, Beneden Regge, De Doorbraak, Deurningerbeek, Dinkel Noord, Jufferbeek, Living Vechte-Dinkel, Marswetering, Oude Bornschebeek, Oude Diep... further results


Site

Name Midden Regge
WFD water body codes NL05_Middenregge
WFD (national) typology R6
WFD water body name Midden Regge
Pre-project morphology
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
Dominant substrate Sand
River corridor land use Intensive agriculture (arable), Grassland, Broadleaf/mixed woodland (semi natural), Urban
Average bankfull channel width category
Average bankfull channel width (m)
Average bankfull channel depth category
Average bankfull channel depth (m)
Mean discharge category 1 - 10 m³/s
Mean annual discharge (m3/s)
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

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Project started
Works started
Works completed
Project completed
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Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design
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Works and works supervision
Post-project management and maintenance
Monitoring



Reasons for river restoration

Mitigation of a pressure
Hydromorphology
Biology
Physico-chemical
Other reasons for the project


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

Element When monitored Type of monitoring Control site used Result
Before measures After measures Qualitative Quantitative

Biological quality elements

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Physico-chemical quality elements

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Any other monitoring, e.g. social, economic

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Monitoring documents



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Supplementary Information

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