Case study:Restoration of Myllypuro brook
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Project overview
Status | Complete |
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Project web site | |
Themes | |
Country | Finland |
Main contact forename | Lasse |
Main contact surname | Järvenpää |
Main contact user ID | |
Contact organisation | |
Contact organisation web site | |
Partner organisations | |
Parent multi-site project | |
This is a parent project encompassing the following projects |
No |
Project summary
The Myllypuro brook is located in the Nuuksio Natural Park in Southern Finland. This brook is a pilot case for environmental restoration in Finland. The straightened brook has been restored in 1995-2003. The aim of the project was to restore the channel simulating as far as possible the natural conditions of the channel. The restoration included returning of the historical and devious stream line and also building a flood terrace by the brook. Attention was especially paid to the shape of the channel and the restoration of the flooding. As a pattern for restoration, another reach of the same brook was used. This reach had remained in its natural state. A planning concept based on validated information about the original natural conditions provided a good basis for restoration planning. It was also considered important that the factors limiting the restoration were clearly distinguished.
Monitoring surveys and results
Lessons learnt
Catchment and subcatchment
Edit the catchment and subcatchment details
(affects all case studies in this subcatchment)
Catchment
River basin district | |
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River basin |
Subcatchment
River name | Myllypuro brook |
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Area category | 10 - 100 km² |
Area (km2) | 25 km²2,500 ha <br /> |
Maximum altitude category | |
Maximum altitude (m) | |
Dominant geology | Organic (i.e. Peat) |
Ecoregion | Fenno-Scandian Shield |
Dominant land cover | Woodland |
Waterbody ID |
Site
Name | Cathment of Brook Myllypuro |
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WFD water body codes | |
WFD (national) typology | |
WFD water body name | |
Pre-project morphology | Sinuous |
Reference morphology | Braided, Sinuous, Pool-riffle |
Desired post project morphology | |
Heavily modified water body | |
National/international site designation | EU - Special Area of Conservation |
Local/regional site designations | |
Protected species present | |
Invasive species present | |
Species of interest | |
Dominant hydrology | |
Dominant substrate | Bedrock, Clay |
River corridor land use | Woodland |
Average bankfull channel width category | |
Average bankfull channel width (m) | |
Average bankfull channel depth category | 2 - 5 m |
Average bankfull channel depth (m) | 2.2 m0.0022 km <br />220 cm <br /> |
Mean discharge category | |
Mean annual discharge (m3/s) | |
Average channel gradient category | |
Average channel gradient | 0.17 |
Average unit stream power (W/m2) |
Project background
Reach length directly affected (m) | 3600 m3.6 km <br />360,000 cm <br /> |
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Project started | 2002/01/01 |
Works started | |
Works completed | 2003/01/01 |
Project completed | |
Total cost category | |
Total cost (k€) | |
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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 | |
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Hydromorphology | Quantity & dynamics of flow, Width & depth variation, Flow velocities, Continuity of sediment transport |
Biology | |
Physico-chemical | |
Other reasons for the project |
Measures
Structural measures
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Bank/bed modifications | Adding sinuosity |
Floodplain / River corridor | |
Planform / Channel pattern | Re-instatement of old course |
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 | |||
Quantity & dynamics of flow | Yes | Awaiting results | ||||
Width & depth variation | Yes | Awaiting results | ||||
Channel pattern/planform | Yes | Awaiting results | ||||
Continuity of sediment transport | Yes | Awaiting results |
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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