Case study:Restoration of Rusenski Lom River near Ivanovo

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Location: 43° 41' 54.13" N, 25° 58' 47.08" E

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Project overview

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Status	Complete
Project web site
Themes	Hydromorphology
Country	Bulgaria
Main contact forename	Ivan
Main contact surname	Hristov
Main contact user ID
Contact organisation	WWF Danube Carpathian programme Bulgaria
Contact organisation web site	http://www.wwf.bg
Partner organisations
Parent multi-site project
This is a parent project encompassing the following projects	No

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Project summary

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The project was implemented in 2009 by the Russenski Lom Nature Park Directorate, Club „Friends of Russenski Lom” and WWF with the support of the Ministry of Culture and was funded by WWF and the German Federal Ecological Foundation DBU The main issues are the following: • In the mid 20th century most of the lower flow of Russenski Lom River was fully diverted. • High water floods the road; • When water overflows the dike it can no longer go back into the river; • The flood in 2006 washed away the bridge and the alcoves on the island once again; • In this case, the water itself suggested the solution to the problem; • It is the first example in Bulgaria for application of the principle “more space for the river – more safety for people”, proven yet in mid 20th century.

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	Rusenski Lom River

Subcatchment

River name	Rusenski Lom
Area category
Area (km2)
Maximum altitude category	Less than 100 m
Maximum altitude (m)
Dominant geology	Calcareous
Ecoregion	Pontic Province
Dominant land cover	Intensive agriculture (arable)
Waterbody ID

Site

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Name	Protected area "Lomovete"
WFD water body codes	BG1RL120R013
WFD (national) typology	BGTR2
WFD water body name
Pre-project morphology	Embanked
Reference morphology	Sinuous
Desired post project morphology
Heavily modified water body	true
National/international site designation	EU - Special Protected Area
Local/regional site designations
Protected species present
Invasive species present
Species of interest
Dominant hydrology	Artificially regulated
Dominant substrate	Sand
River corridor land use	Intensive agriculture (arable)
Average bankfull channel width category	more than 50 m
Average bankfull channel width (m)
Average bankfull channel depth category	2 - 5 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	2008/03/01
Works started	2008/09/01
Works completed	2009/03/01
Project completed
Total cost category	10 - 50 k€
Total cost (k€)
Benefit to cost ratio
Funding sources	WWF Germany, DBU

Cost for project phases

Phase	cost category	cost exact (k€)	Lead organisation	Contact forename	Contact surname
Investigation and design	1 - 10 k€
Stakeholder engagement and communication	1 - 10 k€
Works and works supervision	1 - 10 k€
Post-project management and maintenance	Less than 1 k€
Monitoring	Less than 1 k€

Reasons for river restoration

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Mitigation of a pressure	Flood risk management, Flood defence
Hydromorphology	Width & depth variation
Biology
Physico-chemical
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Measures

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Structural measures
Bank/bed modifications
Floodplain / River corridor
Planform / Channel pattern
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Non-structural measures
Management interventions
Social measures (incl. engagement)
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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
Structure & condition of riparian/ lake shore zones						Inconclusive

Biological quality elements

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quality elements

Element	When monitored		Type of monitoring		Control site used	Result
	Before measures	After measures	Qualitative	Quantitative
Fish: Species composition						Inconclusive

Physico-chemical quality elements

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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

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	Before measures	After measures	Qualitative	Quantitative

Monitoring documents

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Image gallery

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Additional links and references

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Link	Description

Supplementary Information

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