Case study:Rinya water-system reconstruction

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Location: 46° 2' 20", 17° 21' 12"
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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
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encompassing the following
projects
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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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Image gallery


Rinya river_1
Rinya river_2
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Catchment and subcatchment

Catchment

River basin district Danube
River basin Drava

Subcatchment

River name Rinya
Area category 100 - 1000 km²
Area (km2) 912 km²
91,200 ha
Maximum altitude category 200 - 500 m
Maximum altitude (m)
Dominant geology Calcareous
Ecoregion Hungarian Lowlands
Dominant land cover Intensive agriculture
Waterbody ID



Site

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) 50
50 m³/s
50,000 l/s
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m) 37000 m
37 km
3,700,000 cm
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 €
Benefit to cost ratio
Funding sources European Union, 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

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

Structural measures
Bank/bed modifications Reduction of bank slope, Reventment renewal, Creation of fish ladders, Riverbed stabilization, Weir construction
Floodplain / River corridor Riparian planting, Removal of exotic plants
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

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

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

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



Additional documents and videos


Additional links and references

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.
http://wwf.hu/en WWF Hungary - WWF Hungary is the Hungarian arm of the WWF Network and was founded in 1991. It's main aims are protecting the biodiversity of Hungary by focusing on freshwaters, forests and priority species. They are also fighting against climate change and they support WWF's conservation work as well. They participated in the development of the Danube Strategy, as well as organized conservation projects on Hungary's two largest rivers, the Tisza and the Danube.
http://www.icpdr.org/main/ International Commission for the Protection of the Danube River (ICPDR) - The ICPDR is an International Organisation consisting of 14 cooperating states and the European Union. Since its establishment in 1998, the ICPDR has grown into one of the largest and most active international bodies of river basin management expertise in Europe. The ICPDR deals not only with the Danube itself, but also with the whole Danube River Basin, which includes its tributaries and the ground water resources.

Supplementary Information

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