Case study:Fish passes construction on Marta River

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Location: 42° 18' 16.46" N, 11° 50' 21.51" E

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Project overview

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Status	Complete
Project web site
Themes	Habitat and biodiversity
Country	Italy
Main contact forename	Paolo
Main contact surname	Andreani
Main contact user ID
Contact organisation	Provincia di Viterbo
Contact organisation web site	http://www.provincia.vt.it
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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Seven fish passes were built on Marta River, to improve the biological continuity. The sites are: - San Savino dam I - San Savino dam II - San Savino dam III - Fioritella - Tuscania paper mill - Spina wading - Tarquinia paper mill

There were built both technical passes (similar to civil engineering works) and semi-natural passes (whose appearance mimics as much as possible the natural characteristics of natural river, creating rapids, small tributaries…)

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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€) 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 Works and works supervision Post-project management and maintenance Monitoring Reasons for river restoration Edit reasons for restoration Mitigation of a pressure Hydromorphology Biology Fish Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Creation of fish passes 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