Case study:Dam removal in River Stenån

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Location: 57° 8' 43.61" N, 12° 29' 31.94" E

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Project overview

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Status	Complete
Project web site
Themes	Fisheries, Habitat and biodiversity
Country	Sweden
Main contact forename	Katarina
Main contact surname	Vartia
Main contact user ID
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Parent multi-site project
This is a parent project encompassing the following projects	No

Stenån River Valley (photo.Outi Laamanen)

Project summary

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Dam was removed in the River Stenån to help the salmon and other migratory fish to swim upwards the stream. Also other measures to impove fish migration and reproduction has been made by biotope improvements. Wood depris and rocks and gravel has been added to stream bed. Now the stream meanders and flows through a lovely maple forest. Also the stream and lakee in the Stenån water system are acidified and limed since 1986.

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Catchment and subcatchment

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Site

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Name	Stenån-Hovgårds kvarn
WFD water body codes
WFD (national) typology
WFD water body name	River Stenån
Pre-project morphology	Embanked
Reference morphology
Desired post project morphology
Heavily modified water body	No
National/international site designation	EU - Special Protected Area
Local/regional site designations	Natura 2000
Protected species present	Yes
Invasive species present	No
Species of interest	The freshwater pearl mussel, Salmon
Dominant hydrology
Dominant substrate
River corridor land use	Intensive agriculture (arable), Woodland
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Project background

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Reasons for river restoration

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Measures

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Monitoring

Hydromorphological quality elements

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Monitoring documents

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Image gallery

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(photo. Maria Arola)

Removed dam (photo. Outi Laamanen)

Another removed dam, downstreams (photo. Maria Arola)

Meandering stream (photo. Maria Arola)

(photo. Maria Arola)

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Supplementary Information

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