Case study:Rinya water-system reconstruction

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Location: The following coordinate was not recognized: 46.040201,17.349362,46.205366,17.453132,46.285195,17.448956.The following coordinate was not recognized: 46.040201,17.349362,46.205366,17.453132,46.285195,17.448956.

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Project overview

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Status	Complete
Project web site
Themes	Flood risk management, Habitat and biodiversity
Country	Hungary
Main contact forename
Main contact surname
Main contact user ID
Contact organisation	South-Transdanubian Environmental Protection and Water Management Directorate
Contact organisation web site
Partner organisations
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	Danube
River basin	Drava

Subcatchment

River name	Rinya
Area category	100 - 1000 km²
Area (km2)	912 km²91,200 ha <br />
Maximum altitude category	200 - 500 m
Maximum altitude (m)
Dominant geology	Calcareous
Ecoregion	Hungarian Lowlands
Dominant land cover	Intensive agriculture
Waterbody ID

Site

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Name	Szabás
WFD water body codes	AEP288
WFD (national) typology	9
WFD water body name
Pre-project morphology	Single channel, Deepening, Straight
Reference morphology	Single channel, Sinuous, Pool-riffle
Desired post project morphology
Heavily modified water body
National/international site designation	EU - Special Protected Area
Local/regional site designations	National Park
Protected species present
Invasive species present
Species of interest
Dominant hydrology	Permanent lotic
Dominant substrate	Boulders, Sand
River corridor land use	Intensive agriculture (arable), Woodland
Average bankfull channel width category	2 - 5 m
Average bankfull channel width (m)
Average bankfull channel depth category	Less than 0.5 m
Average bankfull channel depth (m)
Mean discharge category
Mean annual discharge (m3/s)	5050 m³/s <br />50,000 l/s <br />
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)

Project background

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Reach length directly affected (m)	37000 m37 km <br />3,700,000 cm <br />
Project started	2008/04/01
Works started
Works completed	2011/12/01
Project completed
Total cost category	1000 - 5000 k€
Total cost (k€)	1856 k€1,856,000 € <br />
Benefit to cost ratio
Funding sources	European Union and the European Regional Development Fund

Cost for project phases

Phase	cost category	cost exact (k€)	Lead organisation	Contact forename	Contact surname
Investigation and design			South-Transdanubian Environmental Protection and Water Management Directorate
Stakeholder engagement and communication			South-Transdanubian Environmental Protection and Water Management Directorate
Works and works supervision			South-Transdanubian Environmental Protection and Water Management Directorate
Post-project management and maintenance			South-Transdanubian Environmental Protection and Water Management Directorate
Monitoring

Reasons for river restoration

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Mitigation of a pressure	Flood defence, Riparian development
Hydromorphology	Continuity for organisms, Flow velocities, Quantity & dynamics of flow
Biology	Fish: Species composition
Physico-chemical
Other reasons for the project	Flood risk management, Landscape enhancement

Measures

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Structural measures
Bank/bed modifications	Reduction of bank slope, Creation of new weirs, Reventment renewal, Creation of fish ladders, Riverbed stabilization
Floodplain / River corridor	Riparian tree and bush planting, Reduction of alien plant species
Planform / Channel pattern	Channel widening
Other
Non-structural measures
Management interventions	Ensuring biodiversity
Social measures (incl. engagement)	Recreation, Decreased flood risk
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
Quantity & dynamics of flow						Awaiting results
Continuity for organisms						Awaiting results

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
Fish: Species composition						Awaiting results

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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