Case study:Rinya water-system reconstruction

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Location: 46° 2' 19.62" N, 17° 21' 12.01" E

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Project overview

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Status	Complete
Project web site	http://www.ddkovizig.hu/tartalom/rinya_water-system_reconstruction_/263
Themes	Flood risk management, Habitat and biodiversity
Country	Hungary
Main contact forename	Ildikó
Main contact surname	Gscheidt
Main contact user ID
Contact organisation	South-Transdanubian Environmental Protection and Water Management Directorate
Contact organisation web site
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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The main aim of the project is the flood protection of the towns of Babócsa, Lábod, Szabás and Nagyatád. As a result the channels will be able to handle the reference flood water output levels. On the deepening sections, further deviances will be stopped by raising and stabilizing parts of the bed. Small rivulets will be restored on an ecological basis, taking into account the wildlife of the river, for example with ensuring longitudinal penetrability for fishes by means of fish passes.

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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Rinya river_1

Rinya river_2

Additional documents and videos

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Additional links and references

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Link	Description
http://okologia.mta.hu/en	Centre for Ecological Research HAS - The institute network of the Hungarian Academy of Sciences is set to produce values for both national and international success in Hungarian and universal science. The Centre's primary aim is to play a fundamental role in promoting the common weal and in building the foundation for the future through valuable scientific achievements based on highly promising discovery research. The Centre consists of three institutes, the Balaton Limnological Institute, the Danube Research Institute and the Institute of Ecology and Botany.
http://www.ovf.hu/	General Driectorate of Water Management - General Directorate of Water Management (OVF) is a background institution of the Ministry of Interior. It supports the work of the Minister regarding the flood management. Its main task is the coordination of flood hazard prevention, river control and flood protection activities, and the management of development projects concerning water bodies. OVF has 12 regional directorates which are coordinating the catchment management planning according to the requirements of the EU WFD. They take preventive and protective measures against floods, carry out status assessments and are the leading organizations in the management and implementation of river restoration projects.
http://neki.gov.hu/	National Institute for Environment - The National Institute for Environment (NeKI) is a background institution of the Ministry of Rural Development, and assists the Minister in the various duties of water management, environmental protection and nature conservation. NeKI has 12 regional branch offices, and is in charge of the strategies, policies and regulations regarding the management and exploitation of water resources. It performs environmental monitoring, status and impact assessments, administrates the national network for hydrological, hydrographical, hydrogeological and quality measurements of public waters. NeKI also coordinates the planning and the implementation of national and EU projects.
http://www.orszagoszoldhatosag.gov.hu/index en.php	National Inspectorate for Environment, Nature and Water - The Inspectorate attends to administrational and water management matters, to analyses and consideration of law proposals in its field, and it supervises its 10 regional inspectorates as well. It coordinates international co-operations and takes part in the tasks connected to the EU integration. The regional inspectorates and two sub-offices are the 'green authorities' at first instance. The regional inspectorates are responsible for registration, monitoring, protection, conservation, reconstruction, rehabilitation, authorization and penalty processes regarding environment, nature and water in their assigned territory.

Supplementary Information

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