Case study:RESTORATION OF THE TRESENEC STREAM

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Project overview

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Status	Complete
Project web site
Themes
Country	Slovenia
Main contact forename	Tanja
Main contact surname	Vasilevska
Main contact user ID
Contact organisation	Notranjski regijski park
Contact organisation web site
Partner organisations
This is a parent project encompassing the following projects	No

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Project summary

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Monitoring surveys and results

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Lessons learnt

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Catchment and subcatchment

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Catchment

River basin district	Danube
River basin	Sava River

Subcatchment

River name	Tresenec
Area category
Area (km2)
Maximum altitude category	500 - 1000 m
Maximum altitude (m)
Dominant geology	Organic (i.e. Peat), Calcareous
Ecoregion	Dinaric Western Balkan
Dominant land cover	Wetland, Extensive agriculture, Woodland
Waterbody ID

Site

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Name	watercourses Tresenec
WFD water body codes
WFD (national) typology	SI141VT2 VTJ Cerkniško jezero (Cerknica lake)
WFD water body name
Pre-project morphology
Reference morphology	Higher groundwater level
Desired post project morphology
Heavily modified water body
National/international site designation	EU - Special Area of Conservation
Local/regional site designations	Ramsar
Protected species present
Invasive species present
Species of interest
Dominant hydrology	Ephemeral
Dominant substrate	Silt, Sand, Gravel
River corridor land use	Wetland, Extensive agriculture
Average bankfull channel width category	2 - 5 m
Average bankfull channel width (m)
Average bankfull channel depth category	0.5 - 2 m
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

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Reach length directly affected (m)
Project started	2007/01/01
Works started
Works completed	2009/12/01
Project completed
Total cost category
Total cost (k€)
Benefit to cost ratio
Funding sources	Notranjska Regional Park, Municipality of Cerknica, Ministry of Environment and Spatial Planning

Cost for project phases

Phase	cost category	cost exact (k€)	Lead organisation	Contact forename	Contact surname
Investigation and design			Notranjska Regional Park
Stakeholder engagement and communication
Works and works supervision			Gradbinko d.o.o.
Post-project management and maintenance
Monitoring

Reasons for river restoration

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Mitigation of a pressure
Hydromorphology
Biology
Physico-chemical
Other reasons for the project

Measures

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Structural measures
Bank/bed modifications	local deepenings, construction of the overflows between individual meanders
Floodplain / River corridor
Planform / Channel pattern
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)
Other

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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quality elements

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Any other monitoring, e.g. social, economic

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Monitoring documents

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Image gallery

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Additional links and references

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Supplementary Information

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