Case study:Restoration of Vesselina River: Difference between revisions

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Latest revision as of 10:43, 6 September 2013

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Location: 43° 1' 48.51" N, 25° 49' 33.96" 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
Vasselina River area

Project summary

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WWF together with local people from Mindya village in the region of Veliko Turnovo, restored the connection of Veselina River, a tributary of Yantra, with its former meander near the village. When the river meander was cut off back in time, the river dug nearly 150 cm deeper into its bed, so now a threshold had to be built to raise its level enough for enabling it run back to its old bed. The project objective is by conducting a number of technical, environmental and forest management activities to achieve ecosystem restoration of the river Vesselina in particular: • Conservation and restoration of biodiversity in isolated old bed of the river and correction of Vesselina river near by Mindya village; • Create favorable conditions for development of recreation and tourism in the region; • Reduce the level of flood risk; • Optimization of groundwater level and reduce the impact of drought and floods on agricultural land in river terrace; • Reduction of erosion; • Increased self-purification capacity of water flow in the region of isolated old bed of the river.

Monitoring surveys and results

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Lessons learnt

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Image gallery


Vesselina River - before restoration
Vesselina River - during restoration
Vesselina River - during restoration
Vesselina River - during restoration
Vesselina River - after restoration
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Catchment and subcatchment

Catchment

River basin district Danube
River basin Yantra River

Subcatchment

River name Vesselina
Area category 100 - 1000 km²
Area (km2)
Maximum altitude category 200 - 500 m
Maximum altitude (m)
Dominant geology Calcareous
Ecoregion Pontic Province
Dominant land cover Woodland
Waterbody ID



Site

Name
WFD water body codes BG1YN130R029
WFD (national) typology BGTR7
WFD water body name
Pre-project morphology Straightened
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 Gravel
River corridor land use Woodland
Average bankfull channel width category 5 - 10 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

Reach length directly affected (m)
Project started 2005/09/01
Works started 2007/09/01
Works completed 2008/04/01
Project completed
Total cost category 50 - 100 k€
Total cost (k€) 7676 k€ <br />76,000 € <br />
Benefit to cost ratio
Funding sources WWF, DOEN Foundation

Cost for project phases

Phase cost category cost exact (k€) Lead organisation Contact forename Contact surname
Investigation and design 10 - 50 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

Mitigation of a pressure Riparian development
Hydromorphology Continuity for organisms
Biology Fish: Species composition
Physico-chemical
Other reasons for the project Landscape enhancement


Measures

Structural measures
Bank/bed modifications
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
Continuity for organisms No change

Biological quality elements

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

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



Additional documents and videos


Additional links and references

Link Description
http://www.veliko-tarnovo.bg/bg/ Veliko Tarnovo municipality
http://www.wwf.bg/ WWF-Bulgaria

Supplementary Information

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