Case study:Buiten Ooij

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Location: 51° 51' 32.40" N, 5° 53' 42.00" E

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Project overview

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Status	Complete
Project web site
Themes	Economic aspects, Habitat and biodiversity, Monitoring, Water quality
Country	Netherlands
Main contact forename	Gerrit
Main contact surname	Van Scherrenburg
Main contact user ID
Contact organisation	Staatsbosbeheer
Contact organisation web site	http://www.staatsbosbeheer.nl/english.aspx
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

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Project summary

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Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

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(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, Millingerwaard-Floodplain rehabilitation, Opijnen- Side channel

Site

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Name	Buiten Ooij - Sluice operation
WFD water body codes
WFD (national) typology	R7
WFD water body name
Pre-project morphology	Impounded
Reference morphology
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
Dominant substrate	Gravel, Bedrock
River corridor land use	Extensive agriculture, Grassland
Average bankfull channel width category	10 - 50 m
Average bankfull channel width (m)
Average bankfull channel depth category	5 - 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

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Reach length directly affected (m)	110 m0.11 km <br />11,000 cm <br />
Project started	2008/01/01
Works started	2008/01/01
Works completed	2009/01/01
Project completed
Total cost category	Less than 10 k€"Less than 10 k€" is not in the list (Less than 1 k€, 1 - 10 k€, 10 - 50 k€, 50 - 100 k€, 100 - 500 k€, 500 - 1000 k€, 1000 - 5000 k€, 5000 - 10000 k€, more than 10000 k€) of allowed values for the "Total cost category" property.
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			Staatsbosbeheer
Stakeholder engagement and communication			Staatsbosbeheer
Works and works supervision
Post-project management and maintenance			Staatsbosbeheer
Monitoring			Staatsbosbeheer

Reasons for river restoration

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Mitigation of a pressure	Depletion of Macrophytes communities
Hydromorphology	Quantity & dynamics of flow, Flow velocities, Width & depth variation, Continuity for organisms
Biology	Macrophytes, Invertebrates, Fish: Species composition, Fish: Abundance
Physico-chemical	Nutrient concentrations, Oxygen balance
Other reasons for the project	Landscape enhancement

Measures

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Structural measures
Bank/bed modifications
Floodplain / River corridor	Water release into floodplain in winter, Closing of sluice in summer, Future floodplain lowering
Planform / Channel pattern	Creation of active side channel
Other
Non-structural measures
Management interventions	more natural reservoir releases
Social measures (incl. engagement)
Other

Monitoring

Hydromorphological quality elements

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quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative
Continuity of sediment transport		Yes		Yes		Improvement

Biological quality elements

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quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative
Macrophytes	Yes	Yes		Yes		Improvement
Invertebrates	Yes	Yes		Yes		Improvement
Fish: Species composition	Yes	Yes		Yes		Improvement
Fish: Abundance		Yes		Yes

Physico-chemical quality elements

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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

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

Monitoring documents

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Image gallery

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Additional documents and videos

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Additional links and references

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Link	Description

Supplementary Information

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