Case study:Massadammen-dam removal in River Tabergsån: Difference between revisions
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|Specific mitigation=Barriers to fish migration, Hydropower, | |||
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Revision as of 10:26, 23 November 2012
This case study is pending approval by a RiverWiki administrator.
Location: 57° 42' 24.46" N, 14° 6' 59.43" E
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Project overview
Status | Complete |
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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 |
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Project summary
Edit project overview to modify the project summary.
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.
Monitoring surveys and results
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Lessons learnt
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Catchment and subcatchment
Site
Name | Massadammen-Motala Ström |
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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 | |
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
Reach length directly affected (m) | |
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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 /> |
Benefit to cost ratio | |
Funding sources |
Cost for project phases
Phase | cost category | cost exact (k€) | Lead organisation | Contact forename | Contact surname |
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Investigation and design | |||||
Stakeholder engagement and communication | |||||
Works and works supervision | |||||
Post-project management and maintenance | |||||
Monitoring |
Reasons for river restoration
Mitigation of a pressure | Barriers to fish migration, Hydropower |
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Hydromorphology | Continuity for organisms |
Biology | Fish |
Physico-chemical | |
Other reasons for the project |
Measures
Structural measures
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Bank/bed modifications | |
Floodplain / River corridor | |
Planform / Channel pattern | |
Other | |
Non-structural measures
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Management interventions | |
Social measures (incl. engagement) | |
Other |
Monitoring
Hydromorphological quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Biological quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Physico-chemical quality elements
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Any other monitoring, e.g. social, economic
Element | When monitored | Type of monitoring | Control site used | Result | ||
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Before measures | After measures | Qualitative | Quantitative |
Monitoring documents
Image gallery
Additional documents and videos
Additional links and references
Link | Description |
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Supplementary Information
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