Case study:Beneden-Berkel

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Location: 52° 9' 16", 6° 17' 51"
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Project overview

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Status In progress
Project web site http://www.wrij.nl/thema'/actueel/projecten/berkel-almen/
Themes Habitat and biodiversity, Land use management - agriculture, Water quality
Country Netherlands
Main contact forename Ellen
Main contact surname Bollen-Weide
Main contact user ID
Contact organisation
Contact organisation web site http://www.wrij.nl/
Partner organisations Provincie Gelderland
Parent multi-site project
This is a parent project
encompassing the following
projects
No
Fishpass on the Beneden-Berkel project (courtesy of Waterschap Rijn & IJssel)

Project summary

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Since the Middle Ages man has been altering the Berkel. At first to make it navigable and from the 1930's onwards to reduce flooding. Over the years the Berkel has thus been modified into a straight monotonous river. Now, some of the natural characteristics of the area will be restored. This will allow many more species of plants and animals to live in and around the Berkel, and the water becomes cleaner.

The measures that will be taken are:

  • remeandering and introduction of woody debris to create more variety in stream flow, water depth and plant growth;
  • cascading fish passages will be made on the Besselink and Warken dams;
  • land consolidation, to move production lands away from the low lying (thus wet) river banks, and closer to the farms, thus reducing distance travelled by farmers;
  • a swimming pool and a walking path will be made, in order to better facilitate recreation.

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Lessons learnt

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Catchment and subcatchment

Catchment

River basin district Rhine
River basin IJssel

Subcatchment

River name IJssel
Area category more than 10000 km²
Area (km2)
Maximum altitude category 100 - 200 m
Maximum altitude (m)
Dominant geology Siliceous
Ecoregion Central Plains
Dominant land cover Intensive agriculture, Urban
Waterbody ID



Other case studies in this subcatchment: Uiterwaardvergraving Keizers- en Stobbenwaarden en Olsterwaarden, Vreugderijkerwaard side channel


Site

Name Beneden-Berkel
WFD water body codes
WFD (national) typology R6
WFD water body name
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 Artificially regulated
Dominant substrate Clay, Sand
River corridor land use Improved/semi-improved grassland/pasture
Average bankfull channel width category 10 - 50 m
Average bankfull channel width (m) 12.5
12.5 m
0.0125 km
1,250 cm
Average bankfull channel depth category 0.5 - 2 m
Average bankfull channel depth (m) 2
2 m
0.002 km
200 cm
Mean discharge category 1 - 10 m³/s
Mean annual discharge (m3/s) 3
3 m³/s
3,000 l/s
Average channel gradient category Less than 0.001
Average channel gradient 0.00022
Average unit stream power (W/m2) 0.5178096
0.518 W/m²


Project background

Reach length directly affected (m)
Project started 2013/09/01
Works started
Works completed
Project completed
Total cost category
Total cost (k€)
Benefit to cost ratio
Funding sources Waterschap Rijn & IJssel, Provincie Gelderland

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

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

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

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

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


Monitoring documents



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Supplementary Information

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