Case study:Rehabilitation of Benta stream

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Location: 47° 19' 14.63" N, 18° 55' 28.63" E

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Project overview

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Status	Complete
Project web site	http://www.kdvvizig.hu/index.php?option=com_content&view=article&id=73:benta-patak-rehabilitacioja&catid=83:benta-patak-rehabilitacioja&Itemid=99
Themes	Flood risk management, Habitat and biodiversity
Country	Hungary
Main contact forename	Norbertné
Main contact surname	Józsa
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Contact organisation	Middle-Danube-Valley Water Management Directorate
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Project summary

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The investment was necessary because of the large amount of occasional and extreme amount of rainfalls and meltwaters caused serious problems in the surrounding communities for many years mainly because of the increased sediment deposition in the streambed. During the project, a total of 38 600 m3 sludge was removed from the steam. Landscape remediation was done on almost 50 thousand square meters of land. Spawning areas were constructed for native protected fish species, such as spined loach and weatherfish.

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Benta stream_1

Benta stram_2

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Danube River basin Danube Subcatchment River name Benta stream Area category 100 - 1000 km² Area (km2) 410 km²41,000 ha <br /> Maximum altitude category 200 - 500 m Maximum altitude (m) Dominant geology Calcareous Ecoregion Hungarian Lowlands Dominant land cover Urban, Woodland Waterbody ID Site Edit site Name Benta stream WFD water body codes AEP318 WFD (national) typology 18 WFD water body name Pre-project morphology Single channel, Straight, Revetments Reference morphology Single channel, Sinuous Desired post project morphology Heavily modified water body false National/international site designation Local/regional site designations Protected species present Invasive species present Species of interest Dominant hydrology Permanent lotic Dominant substrate Gravel River corridor land use Urban, Industry, Intensive agriculture Average bankfull channel width category 2 - 5 m Average bankfull channel width (m) Average bankfull channel depth category 0.5 - 2 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 Edit project background Reach length directly affected (m) Project started 2008/08/01 Works started 2009/06/01 Works completed 2011/05/01 Project completed Total cost category 1000 - 5000 k€ Total cost (k€) 2463 k€2,463,000 € <br /> Benefit to cost ratio Funding sources Operational Program of New Hungary Development Plan, European Union Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Middle-Danube-Valley Water Management Directorate Stakeholder engagement and communication Middle-Danube-Valley Water Management Directorate Works and works supervision Middle-Danube-Valley Water Management Directorate Post-project management and maintenance Middle-Danube-Valley Water Management Directorate Monitoring Middle-Danube-Valley Water Management Directorate Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Flood defence, Riparian development Hydromorphology Quantity & dynamics of flow, Structure & condition of riparian zones Biology Fish: Species composition Physico-chemical Other reasons for the project Flood risk management, Landscape enhancement, Community demand Measures Edit Measures Structural measures Bank/bed modifications Renewal of reventments, Removal of sediment, Planting, Creation of fish spawn nursing places, Creation of pipelines Floodplain / River corridor Planform / Channel pattern Other Reparation of sluice gates Non-structural measures Management interventions channel maintenance Social measures (incl. engagement) Floodprotection, landenhancement Other Information provision Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Quantity & dynamics of flow Yes Yes Improvement Structure & condition of riparian zones Yes Yes Improvement Biological quality elements Edit biological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative [[]] Physico-chemical quality elements Edit 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 Edit Other responses Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative Monitoring documents Upload monitoring documents Additional documents and videos Upload additional documents Additional links and references Edit 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 Edit Supplementary Information