Case study:Massadammen-dam removal in River Tabergsån

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Location: 57° 42' 24.46" N, 14° 6' 59.43" E

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Project overview

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Status	Complete
Project web site
Themes	Fisheries, Habitat and biodiversity, Hydropower, Hydromorphology, Spatial planning
Country	Sweden
Main contact forename	Peter
Main contact surname	Lindvall
Main contact user ID
Contact organisation	Länsstyrelsen i Jönköpings län
Contact organisation web site	http://projektwebbar.lansstyrelsen.se/vattern/Sv/besoksmal-vatterbackar/tabergsan/Pages/5-massadammen.aspx
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

After restoration (photo. Maria Arola)

Project summary

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Massadammen dam in the South of Jönköping in the River Tabergsån. The dam was built in 1906 for hydropower but the hydro power station was shut down in 1950´s. Because the dam was an obsticle for migrating fish it was decided to remove to improve the conditions for fish. The aim was to build fishpassage, increase the spawning areas for trout and to reduce the regulation and maintenance of the dam. The first plan of the restoration met heavy resistace from the local people because they wanted to maintain the water level. The new plan was made and three dams were built instead of one in the dammed area. The project was good example of the co-operation between different organization (municipality, consultants and local people) to find a goos solution for all parties.

Most of the work was done between early august to late october in 2011. Because of the restoration spawning area for fish increased from 29 000 to 36 000 m2. Also densities of trout increased in the upstream. Densities were measured to be 5 times higher after than before restorations. Total cost of the project was approximately 174 000 euros.

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Catchment and subcatchment

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Site

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Name	Massadammen-Motala Ström
WFD water body codes	067
WFD (national) typology
WFD water body name	Tabergsån
Pre-project morphology	Embanked, Artificial bed, Artificial channel
Reference morphology
Desired post project morphology
Heavily modified water body	Yes
National/international site designation
Local/regional site designations
Protected species present	No
Invasive species present	No
Species of interest
Dominant hydrology	Artificially regulated
Dominant substrate
River corridor land use
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Project background

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Reach length directly affected (m)
Project started	2007
Works started	2011/08/01
Works completed	2011/10/31
Project completed	2011/10/31
Total cost category	100 - 500 k€
Total cost (k€)	174174 k€ <br />174,000 € <br />
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Cost for project phases

Phase	cost category	cost exact (k€)	Lead organisation	Contact forename	Contact surname
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Reasons for river restoration

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Mitigation of a pressure	Barriers to fish migration, Hydropower
Hydromorphology	Continuity for organisms
Biology	Fish
Physico-chemical
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Measures

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Monitoring

Hydromorphological quality elements

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quality elements

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Supplementary Information

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