Case study:Basic proposals for restoration and enhancement of the stream of Vilamajor in Sant Antoni de Vilamajor

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Location: 41° 40' 25", 2° 24' 2"
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Project overview

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Status Complete
Project web site
Themes Environmental flows and water resources, Habitat and biodiversity, Hydromorphology
Country Spain
Main contact forename Naturalea
Main contact surname Naturalea
Main contact user ID
Contact organisation Naturalea
Contact organisation web site http://www.naturalea.eu
Partner organisations
Parent multi-site project
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Project summary

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The stretch to restore is near the town center, which has led to the channeling of the river and the installation of auxiliary structures. On the other hand, it has increased the proliferation of alien invasive species and it has retreated riparian vegetation. The main actions in this project are: the use of new bioengineering elements in order to stabilize slope banks; naturalize space by planting trees, shrubs and heliophilous; management of drainage of surface runoff by constructing a rainwater collect. The project has a total budget of 20.354,29 € and is financed by the Municipality of Sant Antoni de Vilamajor.

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Map of the area of action
Map of the area of action
Scheme of the area of action
Photos of the area before works
Photos of the area before works
Photos of the area before works
Photos of the area before works
Photos of the area before works
Photos of the area before works
Photos of the area after works
Photos of the area after works
Photos of the area after works
Photos of the area after works
Photos of the area after works
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Catchment and subcatchment

Catchment

River basin district Pirineo Oriental
River basin Besós

Subcatchment

River name Riera de Sant Antoni de Vilamajor
Area category
Area (km2)
Maximum altitude category 200 - 500 m
Maximum altitude (m) 260 m
0.26 km
26,000 cm
Dominant geology
Ecoregion Ibero-Macaronesian
Dominant land cover Urban
Waterbody ID



Site

Name Tramo entre el puente de la calle Sant Pere y el puente de la calle Sant Jordi
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology Entrenched
Reference morphology Entrenched
Desired post project morphology
Heavily modified water body true
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 2 - 5 m
Average bankfull channel width (m) 5
5 m
0.005 km
500 cm
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) 82 m
0.082 km
8,200 cm
Project started 2010/01/01
Works started
Works completed 2010/10/01
Project completed
Total cost category 10 - 50 k€
Total cost (k€) 20 k€
20,000 €
Benefit to cost ratio
Funding sources Municipality of Sant Antoni de Vilamajor

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 Naturalea, S.L.
Post-project management and maintenance
Monitoring



Reasons for river restoration

Mitigation of a pressure
Hydromorphology Channel pattern/planform, Structure & condition of riparian zones
Biology
Physico-chemical
Other reasons for the project Landscape enhancement


Measures

Structural measures
Bank/bed modifications New bioengineering elements in order to stabilize slope banks
Floodplain / River corridor Protect/restore riparian zone
Planform / Channel pattern Works to safeguard the bridge
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
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Monitoring documents



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Supplementary Information

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