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
Country	Finland
Main contact forename	Markus
Main contact surname	Tapaninen
Main contact user ID
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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Catchment and subcatchment

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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

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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

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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

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Mitigation of a pressure
Hydromorphology	Quantity & dynamics of flow, Continuity for organisms
Biology
Physico-chemical
Other reasons for the project

Measures

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Structural measures
Bank/bed modifications	Re-introducing stones, Building submerged weir, Building fishways
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)
Other

Monitoring

Hydromorphological quality elements

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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

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quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Physico-chemical quality elements

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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

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Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative

Monitoring documents

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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)

Additional documents and videos

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Additional links and references

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Link	Description

Supplementary Information

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