Case study:Restoring of ecological connectivity and implementation of activities improving functioning of the free river migration corridor

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Location: 49° 37' 26.62" N, 20° 56' 52.40" E

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Project overview

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Status	In progress
Project web site	http://biala-tarnowska.org/
Themes	Fisheries, Flood risk management, Habitat and biodiversity, Monitoring
Country	Poland
Main contact forename	Ewelina Marzec
Main contact surname	Karol Ciezak
Main contact user ID
Contact organisation	0048126284100
Contact organisation web site	http://krakow.wody.gov.pl/
Partner organisations
This is a parent project encompassing the following projects

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Project summary

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River valleys have been transformed, built up and partitioned for decades. This led to a disruption in water management – an increased risk of flooding and drought. The degradation of valleys and riverbeds has caused a reduction in the population or even total extinction of many species of aquatic organisms. Fifteen of the twenty-one fish species living in Biała Tarnowska need access to stony or gravelly ground to live. Riverbeds of this type are found in the upper part of the drainage basin, but access to them is blocked by numerous weirs and dams located along the river. In some cases, they will improve the functioning of water intakes. The planned activities will improve the natural and landscape values of the Biała Valley and will positively influence the development of tourism and fishing.

The liquidation or modernization of these obstacles and the renaturalization of the riverbed fragments will not only create better living conditions and migration of fish but will also increase the flood safety of residents.

The project covers the following municipalities: Uście Gorlickie, Grybów, Bobowa and Ciężkowice. It is a continuation of earlier activities leading to an increase in the biodiversity of the river valley by restoring the habitats of native species of plants and animals and creating favorable conditions for their living and free movement.

PROJECT GOALS 1. Reconstruction of 15 barrages and weirs in such a way as to enable fish migration while guaranteeing the safety of water intakes and bridges during highand low water levels. This will allow two-way fish migration along the entire length of the river. 2. Creation of a erodible corridor of river migration,which means enabling the river on several sections to meander freely and launch natural erosion processes in the river, and debris transportation. As a result, erosion of the bottom will decrease, and the condition of the riverbed and habitats of living organisms will improve. Natural retention will also increase and this will improve the flood safety for residents.

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Jankowa (km 61+160 Biala River)

Bobowa (km 58+700 Biala River)

Grybów (km 72+050 Biala River)

Catchment and subcatchment Select a catchment/subcatchment Site Edit site Name WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Reference morphology Desired post project morphology Heavily modified water body National/international site designation Local/regional site designations Protected species present Invasive species present Species of interest Dominant hydrology Dominant substrate River corridor land use Average bankfull channel width category Average bankfull channel width (m) Average bankfull channel depth category 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 Works started Works completed Project completed Total cost category Total cost (k€) 9248. 8309,248.83 k€ <br />9,248,830 € <br /> Benefit to cost ratio Funding sources Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Stakeholder engagement and communication Department of Ecological Researches Roman Konieczny Małgorzata Siudak Works and works supervision Department of Ecological Researches Roman Żurek Karol Ciężak, Jacek Engel Post-project management and maintenance National Water Management Polish Waters Regional Water Management Board in Krakow Monitoring Department of Ecological Researches Roman Żurek Karol Ciężak, Jacek Engel Supplementary funding information The project is implemented by National Water Management Polish Waters Regional Water Management Board in Krakow as part of the EU Operational Programme Infrastructure and Environment 2014-2020. Total cost: 9 248 830 € Subsidy from the European Union: 7 840 380 € Project implementation time: 2017-2020 Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Barriers to fish migration Hydromorphology Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Other Monitoring Hydromorphological quality elements Edit Hydromorphological quality elements Element When monitored Type of monitoring Control site used Result Before measures After measures Qualitative Quantitative 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 Supplementary Information Edit Supplementary Information