Case study:Restoration of Siuruanjoki River

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Location: 65° 24' 22.66" N, 25° 52' 29.76" E

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Project overview

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Status	Complete
Project web site
Themes	Land use management - agriculture, Land use management - forestry, Social benefits, Water quality
Country	Finland
Main contact forename	Sanna
Main contact surname	Pehkonen
Main contact user ID
Contact organisation	Centre for Economic Development, Transport and the Environment for Lapland
Contact organisation web site	http://www.ymparisto.fi/download.asp?contentid=68588
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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Siuruanjoki River is located Northern part of Finland and is one of the tributaries of Iijoki River. The project ”Siuruanjoki kuntoon” (Making Siuruanjoki River Fit) objective was to apply various means of mitigate the diffuse loading impacts of a large watershed area within three municipalities in Northern Finland; i.e. within the Provinces of Lapland and Ostrobotnia. The project was carried out in Ostrobothnia in the years 2000-2006.

The project aim was to improve the quality of the water in Siuruanjoki River and the condition of the water system in such a way that it would be better suited to meet the needs of recreation, fishing, and tourism. The project was accomplished by mitigating the impacts of diffuse loading, restoring parts of the water system, and tending the river bank areas. The diffuse loading was mitigated by reducing the external loading from agriculture and forestry, and by improving the waste water treatment solutions used with regard to the rural population and holiday-home users. Lake Saunajarvi in the area of Pudasjarvi was restored by means of intensified fishing aimed at ridding the lake of undesirable and excessive fish species. In addition, the project included the central objective of adding to the environmental awareness and sense of responsibility of the local people.

Among the achievements of the project were the formulation of overall forestry-related plans for the protection of the water system, trials with new peat-production-related methods of treating run-off water, formulation of property-specific plans for improving the treatment of waste water, and nutrient balance studies were created for farms along with the conducting of environmental assessments. The project was mostly managed by Regional Environmental Agency of Ostrobothnia Pohjois-Pohjanmaan ymparistokeskus in close co-operation with local actors. The project had a total budget of € 630,705.

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Catchment of Siuruanjoki River

Bank reinforcement

Constructed sedimentation basin

Catchment and subcatchment Select a catchment/subcatchment Edit the catchment and subcatchment details (affects all case studies in this subcatchment) Catchment River basin district Iijoki River basin River basin Siuruanjoki River Basin Subcatchment River name Siuruanjoki River Area category 1000 - 10000 km² Area (km2) 2387 km²238,700 ha <br /> Maximum altitude category Maximum altitude (m) Dominant geology Organic (i.e. Peat) Ecoregion Fenno-Scandian Shield Dominant land cover bog Waterbody ID Site Edit site Name Catchment of Siuruanjoki River 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 multiple designations across the site Protected species present Invasive species present Species of interest Dominant hydrology Dominant substrate River corridor land use Coniferous plantation 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 2000/01/01 Works started Works completed 2006/01/01 Project completed Total cost category 500 - 1000 k€ Total cost (k€) 850 k€850,000 € <br /> Benefit to cost ratio Funding sources European Regional Development Fund, Regional Environment Institute, Cities of Pudasjärvi, Yli-Ii and Ranua 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 Riparian development Hydromorphology Continuity for organisms, Structure & condition of riparian/ lake shore zones Biology Fish: Abundance, Fish: Species composition Physico-chemical Nutrient concentrations Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Floodplain / River corridor Removal of embankments, Creation of wetland, establishment of woodland Planform / Channel pattern Other Non-structural measures Management interventions Social measures (incl. engagement) Awareness raising Other Information provision, Participation in works, Participation in monitoring 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