Case study:Restoration in the lower reach of the Cinca River

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Location: 41° 33' 6.32" N, 0° 19' 23.66" E

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Project overview

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Status	Complete
Project web site
Themes	Flood risk management, Habitat and biodiversity, Land use management - forestry
Country	Spain
Main contact forename	CHE
Main contact surname	CHE
Main contact user ID
Contact organisation	MARM
Contact organisation web site	http://www.chebro.es
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 objective of the project is to restore the stream morphology and floodplain conditions in the right bank of the river Cinca, in the lower reach, between Velilla de Cinca and Fraga. There is a major actuation that consists of remove a levee that only protects crops. There are two groups of measures: Morphological as the increase of the Fluvial Mobility Space through the remove of the levee closer to the river. There is other levee that protects the 500-year flood, but it will be preserved. This actuation will increase the lateral connectivity between the stream and the riparian vegetation; and about riparian vegetation, with 2 different tasks: a)Natural riparian vegetation recovery through the cut down of black poplars plantation. There are going to plant native species: Salix, Corylus avellana, Fraxinus, Populus, Ulmus. b)Reforest areas without vegetation.

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Aerial view of the area of action

Aerial view of the area of action

Aerial view of the area of action

Photo of embankments

Scheme of changes in the riparian vegetation

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district C.H.Ebro River basin Ebro Subcatchment River name Cinca Area category Area (km2) Maximum altitude category 100 - 200 m Maximum altitude (m) 120 m0.12 km <br />12,000 cm <br /> Dominant geology Ecoregion Ibero-Macaronesian Dominant land cover Plantation forestry, Extensive agriculture Waterbody ID Site Edit site Name WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Sinuous, Braided Reference morphology Sinuous, Braided 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) 15000 m15 km <br />1,500,000 cm <br /> Project started Works started Works completed Project completed Total cost category 1000 - 5000 k€ Total cost (k€) 1700 k€1,700,000 € <br /> Benefit to cost ratio Funding sources MARM 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 Flood defence Hydromorphology Width & depth variation, Structure & condition of riparian zones Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Displacement of flood defenses, Elimination of secondary speck to increase the floodplain, Restoring riparian vegetation 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 documentation (in Spanish) Additional links and references Edit links and references Link Description http://oph.chebro.es/DOCUMENTACION/Restauracion/PlazoActuaciones.pdf Project information Supplementary Information Edit Supplementary Information