Case study:Restoration of habitats in Pärnu river

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Location: 58° 24' 41", 24° 39' 20"
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Project overview

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Status In progress
Project web site
Themes Fisheries, Habitat and biodiversity
Country Estonia
Main contact forename Külli
Main contact surname Tammur
Main contact user ID
Contact organisation Environment Agency of Estonia
Contact organisation web site http://www.keskkonnaagentuur.ee
Partner organisations
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Project summary

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Project "Restoration of habitats in Pärnu river" is carried out in 2015-2023 by the Environment Agency of Estonia. This project is objected to restore habitats in Pärnu river and river basin. One of project main activity is to remove Sindi Dam, which blocks the fish migration 14 km from the sea. Excisting fishpass does not work, so almost 7000 sq km of river is blocked for the fish coming from the sea.

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Catchment and subcatchment

Subcatchment:Pärnu River


Site

Name
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology
Reference morphology
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
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)
Project started 2015/03/15
Works started 2015/01/04
Works completed
Project completed 2023/12/31
Total cost category more than 10000 k€
Total cost (k€) 15000
15,000 k€
15,000,000 €
Benefit to cost ratio
Funding sources Cohesion Fund and State budget

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

Mitigation of a pressure Hydropower
Hydromorphology Continuity for organisms, Continuity of sediment transport
Biology
Physico-chemical
Other reasons for the project


Measures

Structural measures
Bank/bed modifications Dam removal
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)
Other


Monitoring

Hydromorphological quality elements

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

Biological quality elements

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

Physico-chemical 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

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


Monitoring documents



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Supplementary Information

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