Case study:Increased biodiversity, river Llobregat, Sallent.

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Location: 41° 47' 41.28" N, 1° 54' 6.30" E

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Project overview

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Status	Complete
Project web site
Themes	Environmental flows and water resources, Flood risk management, Habitat and biodiversity, Hydromorphology
Country	Spain
Main contact forename	Municipality of Sallent
Main contact surname	Municipality of Sallent
Main contact user ID
Contact organisation	Municipality of Sallent
Contact organisation web site
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 fluvial space has been reduced by the advance of agriculture, infrastructure construction and the possible expansion of industrial estates. Also, improper utilization of public use involves the accumulation of waste. The axis of the Llobregat highway is also source of noise and visual pollution. The main objectives are: creating an artificial wetland; creating a wet meadow (temporary flooding); protection of sand and gravel bars; construction of a longitudinal wall for crop protection.

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Image gallery

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Aerial view of the restoration area

Artificial wetland created in 1994

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Pirineo Oriental River basin Llobregat Subcatchment River name Llobregat Area category Area (km2) Maximum altitude category Less than 100 m Maximum altitude (m) 25 m0.025 km <br />2,500 cm <br /> Dominant geology Ecoregion Ibero-Macaronesian Dominant land cover Urban Waterbody ID Other case studies in this subcatchment: Llobregat river restoration Site Edit site Name Sallent WFD water body codes WFD (national) typology WFD water body name Pre-project morphology Sinuous Reference morphology Sinuous 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 Urban 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) 20.7720.77 m³/s <br />20,770 l/s <br /> Average channel gradient category Average channel gradient Average unit stream power (W/m2) Project background Edit project background Reach length directly affected (m) 2000 m2 km <br />200,000 cm <br /> Project started 1994/01/01 Works started Works completed 1995/01/01 Project completed Total cost category Total cost (k€) Benefit to cost ratio Funding sources Environmental Department, Municipality of Sallent 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 Hydromorphology Continuity for organisms, Channel pattern/planform, Structure & condition of riparian zones Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Embankment construction (not near the riverbed), Revetmens with local species Floodplain / River corridor Silvicultural treatments, New habitats construction Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) New pahts near the river 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 Supplementary Information Edit Supplementary Information