Case study:Habitat and water flow restoration on River Rábca

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Location: 47° 26' 2.25" N, 17° 0' 55.40" E
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Project overview

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Status Complete
Project web site http://www.edukovizig.hu/projektjeink
Themes Flood risk management, Habitat and biodiversity, Hydromorphology
Country Hungary
Main contact forename István
Main contact surname Nádor
Main contact user ID
Contact organisation North-Transdanubian Water Management Directorate
Contact organisation web site http://www.edukovizig.hu/
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 aims of the two-phase revitalization were to enhance the water supply of the river under Répcelak, to fit hydraulic structures into the landscape, to restore natural hydrologic conditions, to increase the area of fish habitats and spawning grounds, to establish continuous shading and to ensure the stability of the riverbed on a long term basis by planting of native tree species along the river bank and by strengthening the bank with natural materials.

Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

Catchment

River basin district Danube River Basin District
River basin Danube

Subcatchment

River name River Rábca (Rabnitz)
Area category 1000 - 10000 km²
Area (km2)
Maximum altitude category 100 - 200 m
Maximum altitude (m)
Dominant geology Calcareous
Ecoregion Alps
Dominant land cover Intensive agriculture, Plantation forestry, Woodland
Waterbody ID



Site

Name Rábca
WFD water body codes AEP904
WFD (national) typology 13
WFD water body name
Pre-project morphology Single channel, Straight
Reference morphology Single channel, Sinuous, Pool-riffle
Desired post project morphology
Heavily modified water body No
National/international site designation EU - Special Area of Conservation
Local/regional site designations
Protected species present No
Invasive species present No
Species of interest
Dominant hydrology Artificially regulated, Permanent lotic
Dominant substrate Gravel
River corridor land use Intensive agriculture (arable), Woodland, Plantation forestry
Average bankfull channel width category
Average bankfull channel width (m)
Average bankfull channel depth category 2 - 5 m
Average bankfull channel depth (m)
Mean discharge category 1 - 10 m³/s
Mean annual discharge (m3/s)
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)


Project background

Reach length directly affected (m) 18000 m18 km <br />1,800,000 cm <br />
Project started 2010/10/01
Works started 2011/09/01
Works completed 2012/05/01
Project completed
Total cost category 100 - 500 k€
Total cost (k€) 241 k€241,000 € <br />
Benefit to cost ratio
Funding sources EU Environment and Energy Operational Program

Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design 100 - 500 k€ 241 k€241,000 € <br /> SOLVEX LTD. http://www.solvex.hu Tibor Kránitz
Stakeholder engagement and communication Hungarian Ornithological and Nature Conservation Society (MME)
Works and works supervision Oktaéder Építőipari, Kereskedelmi és Szolgáltató LTD
Post-project management and maintenance
Monitoring



Reasons for river restoration

Mitigation of a pressure
Hydromorphology Quantity & dynamics of flow, Continuity for organisms, Structure & condition of riparian zones
Biology Fish: Species composition, Macrophytes
Physico-chemical Nutrient concentrations
Other reasons for the project


Measures

Structural measures
Bank/bed modifications Removal of reed, Removal of small bars, Weir removal
Floodplain / River corridor Riparian planting
Planform / Channel pattern
Other Removal of fallen trees
Non-structural measures
Management interventions Ensuring biodiversity
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



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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