Case study:Creation of spawning ground for Baltic salmon, anadromous brown trout and river lamprey at Veneküla rapid, river Pirita

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Location: 59° 26' 3.78" N, 24° 55' 50.76" E

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Project overview

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Status	Complete
Project web site
Themes	Economic aspects, Fisheries, Habitat and biodiversity, Hydromorphology, Monitoring
Country	Estonia
Main contact forename	Martin
Main contact surname	Kesler
Main contact user ID
Contact organisation	Estonian Marine Institute, University of Tartu
Contact organisation web site	http://www.sea.ee
Partner organisations
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Project summary

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Catchment and subcatchment

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Site

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Name	Veneküla rapid
WFD water body codes
WFD (national) typology
WFD water body name	River Pirita
Pre-project morphology	Limestone bedrock
Reference morphology
Desired post project morphology
Heavily modified water body	No
National/international site designation	Estonia - Koelmuala
Local/regional site designations
Protected species present	Yes
Invasive species present	No
Species of interest	Baltic salmon (Salmo salar), anadromous brown trout (Salmo trutta) and river lamprey (Lampetra planeri)
Dominant hydrology	Riverine
Dominant substrate	Flat monolithic bedrock
River corridor land use	Urban
Average bankfull channel width category	10 - 50 m
Average bankfull channel width (m)
Average bankfull channel depth category	Less than 0.5 m
Average bankfull channel depth (m)
Mean discharge category	1 - 10 m³/s
Mean annual discharge (m3/s)	5-7"-7" is not declared as a valid unit of measurement for this property.
Average channel gradient category	0.01 - 0.1
Average channel gradient	0,72",72" can not be assigned to a declared number type with value 0.
Average unit stream power (W/m2)

Project background

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Reach length directly affected (m)	20002,000 m <br />2 km <br />200,000 cm <br />
Project started	2007
Works started	2012/07/15
Works completed	2012/08/30
Project completed
Total cost category	1000 - 5000 k€
Total cost (k€)
Benefit to cost ratio
Funding sources	90% covered by EU, Central Baltic INTERREG IV A Programme 2007-2013 and 10% by Estonian Ministry of the Environment

Cost for project phases

Phase	cost category	cost exact (k€)	Lead organisation	Contact forename	Contact surname
Investigation and design
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Works and works supervision
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Reasons for river restoration

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Mitigation of a pressure
Hydromorphology
Biology
Physico-chemical
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Measures

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Structural measures
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Floodplain / River corridor
Planform / Channel pattern
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Non-structural measures
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Monitoring

Hydromorphological quality elements

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quality elements

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

Biological quality elements

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quality elements

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Physico-chemical quality elements

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Any other monitoring, e.g. social, economic

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Additional links and references

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Supplementary Information

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