Case study:Restoration of Reinikkalankoski torrent

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Location: 60° 34' 44.24" N, 27° 49' 58.08" E

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Project overview

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Status	Complete
Project web site
Themes	Flood risk management, Hydromorphology
Country	Finland
Main contact forename	Markus
Main contact surname	Tapaninen
Main contact user ID	User:Arolam
Contact organisation	Centre for Economic Development, Transport and the Environment for Southeast Finland
Contact organisation web site	http://www.healfish.eu/index.php?option=com content&view=article&id=23&Itemid=33&lang=fi
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

After restoration (photo. Markus Tapaninen)

Project summary

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Vaalimaanjoen kunnostukset keskittyvät Reinikkalankosken vanhan sääntelypadon korvaamiseen pohjapadolla ja kalatiellä. Työt keskittyvät matalanveden aikaan, koska muutostöiden aikana veden täytyy virrata voimalaitoksen läpi. Padon poiston jälkeen uomaan reunoja louhitaan. Irralliset kivet kiinnitetään paikoilleen. Pohjapato täytetään hiekalla, soralla ja kiveyksellä. Padon harjalle levitetään kutusoraa. Kalatiestä kivetään 3-5 metriin leveä uoma. Kunnostustöiden ansiosta vaelluskaloille avautuu mahdollisuus nousta joen yläjuoksulle.

The restoration was complited as a part of the Interreg IV C funded HEALFISH Project.

Monitoring surveys and results

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Lessons learnt

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Image gallery

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Restoration of Reinikkalankoski torrent before restoration (photo: Jukka Jormola)_1

Before restoration (photo.Markus Tapaninen)

Restoration of Reinikkalankoski torrent before restoration (photo: Jukka Jormola)_2

Restoration of Reinikkalankoski torrent before dam removal (photo: Jukka Jormola)

Restoring the stream (photo. Markus Tapaninen)

Restoring the stream (photo. Markus Tapaninen)

Restoration of Reinikkalankoski torrent after dam removal (photo: Jukka Jormola)

After restoration (photo. Markus Tapaninen)

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 basin Vaalimaanjoki River Basin Subcatchment River name Vaalimaanjoki River Area category 100 - 1000 km² Area (km2) 242 km²24,200 ha <br /> Maximum altitude category Maximum altitude (m) Dominant geology Ecoregion Fenno-Scandian Shield Dominant land cover Woodland Waterbody ID Site Edit site Name Reinikkalankoski torrent WFD water body codes WFD (national) typology WFD water body name Pre-project morphology dam Reference morphology Pool-riffle 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 Ephemeral Dominant substrate River corridor land use Woodland 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 Quantity & dynamics of flow, Continuity for organisms Biology Physico-chemical Other reasons for the project Measures Edit Measures Structural measures Bank/bed modifications Re-introducing stones, Building submerged weir, 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 Quantity & dynamics of flow Awaiting results Continuity for organisms Awaiting results 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