Case study:Černý potok stream restoration scheme

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Location: 50° 44' 3.81" N, 13° 53' 29.49" E

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Project overview

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Status	Complete
Project web site
Themes	Flood risk management, Habitat and biodiversity, Hydromorphology, Spatial planning, Water quality
Country	Czech Republic
Main contact forename	Rous
Main contact surname	Vít
Main contact user ID	User:VRous
Contact organisation	Nature Conservation Agency of the Czech Republic
Contact organisation web site	http://www.ochranaprirody.cz
Partner organisations	Terén Design Ltd - www.terendesign.cz, Grania Ltd - www.grania.cz
Parent multi-site project
This is a parent project encompassing the following projects	No

Central part of the stream restoration

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Image gallery

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excavation of the new channel

excavation site

filling up the small "dams" in the deepened channel

winter higher flow

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district River Elbe River basin River Elbe Subcatchment River name Müglitz Area category 100 - 1000 km² Area (km2) Maximum altitude category 500 - 1000 m Maximum altitude (m) Dominant geology Ecoregion Dominant land cover Waterbody ID Site Edit site Name National Reserve Black Meadow WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Over deepened, Straightened, Artificial bed Reference morphology Actively meandering, Pool-riffle Desired post project morphology Heavily modified water body Yes National/international site designation International - RAMSAR site Local/regional site designations National Reserve Protected species present Yes Invasive species present No Species of interest Menyanthes trifoliata, Pinguicula vulgaris Dominant hydrology Groundwater Dominant substrate Earth River corridor land use Grassland, Wetland Average bankfull channel width category Less than 2 m Average bankfull channel width (m) 0.80.8 m <br />8.0e-4 km <br />80 cm <br /> Average bankfull channel depth category Less than 0.5 m Average bankfull channel depth (m) 0.30.3 m <br />3.0e-4 km <br />30 cm <br /> Mean discharge category Less than 0.1 m³/s Mean annual discharge (m3/s) 0.060.06 m³/s <br />60 l/s <br /> Average channel gradient category 0.01 - 0.1 Average channel gradient 0.025 Average unit stream power (W/m2) 18.38812518.388 W/m² <br /> Project background Edit project background Reach length directly affected (m) 40004,000 m <br />4 km <br />400,000 cm <br /> Project started 2006/02/01 Works started 2009/08/01 Works completed 2010/11/30 Project completed 2010/11/30 Total cost category 100 - 500 k€ Total cost (k€) 264264 k€ <br />264,000 € <br /> Benefit to cost ratio Funding sources 90% covered by EU - Operational Programme Environment Cost for project phases Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname Investigation and design Stakeholder engagement and communication Works and works supervision Post-project management and maintenance Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Land drainage Hydromorphology Width & depth variation, Channel pattern/planform, Flow velocities Biology Macrophytes, Invertebrates Physico-chemical Other reasons for the project Landscape enhancement Measures Edit Measures Structural measures Bank/bed modifications construction of nearly completly new streambeds and directing water freely to the alluvial meadows Floodplain / River corridor Creation of ponds by partially filling up the deepend and streightend channel Planform / Channel pattern Allow future natural channel changes to occur Other Recovering natural landscapes Non-structural measures Management interventions Management of vegetation, More natural water retention, monitoring Social measures (incl. engagement) Other popularization of the project 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 Hydrograph - restored versus deepened channel Additional links and references Edit links and references Link Description Supplementary Information Edit Supplementary Information