Case study:Restoration project in Serpis River in the tt.mm. Lorcha (Alicante province) and Villalonga (Valencia province)

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Location: 38° 52' 44.42" N, 0° 15' 35.62" W

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Project overview

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Status	Complete
Project web site
Themes
Country	Spain
Main contact forename	CHJ
Main contact surname	CHJ
Main contact user ID
Contact organisation
Contact organisation web site	http://www.chj.es/
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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In the Serpis River there are a variety of habitats, from riparian forest with undamaged stretches to Mediterranean forest. There are also elements of great cultural and heritage value, as mills from the XIX century. Anthropic pressure, mainly agriculture and hydropower industry makes necessary the restoration to ensure the ecological river corridor. The actions of the project are: Recovery of the river mobility space; Recovery of river morphology: recovery of the steepness of the slopes of the channel and the original path of the river (oxbow connection); Recovery of longitudinal continuity: demolition of 5 obsolete weirs and construction of fish ladders in two weirs; Clean channel and its banks; Elimination of exotics plants, silvicultural treatments and planting of riparian trees and shrubs; and installation of information panels and limitation on use of roads. The project has a total budget of 6.912.492€ and is financed by the Ministry of Environment, as part of the National Strategy for River Restoration.

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	C.H.Júcar
River basin	Serpis

Subcatchment

River name	Serpis
Area category
Area (km2)
Maximum altitude category	200 - 500 m
Maximum altitude (m)	400 m0.4 km <br />40,000 cm <br />
Dominant geology
Ecoregion	Ibero-Macaronesian
Dominant land cover	Extensive agriculture
Waterbody ID

Site

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Name	Río Serpis entre el embalse de Beniarrés y el azud de la Reprimala
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology	Sinuous
Reference morphology	Sinuous
Desired post project morphology
Heavily modified water body
National/international site designation
Local/regional site designations	Site of Community Importance
Protected species present
Invasive species present
Species of interest
Dominant hydrology
Dominant substrate
River corridor land use	Extensive agriculture
Average bankfull channel width category
Average bankfull channel width (m)
Average bankfull channel depth category
Average bankfull channel depth (m)
Mean discharge category
Mean annual discharge (m3/s)	2.52.5 m³/s <br />2,500 l/s <br />
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)

Project background

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Reach length directly affected (m)	16100 m16.1 km <br />1,610,000 cm <br />
Project started
Works started
Works completed
Project completed
Total cost category	5000 - 10000 k€
Total cost (k€)	6912 k€6,912,000 € <br />
Benefit to cost ratio
Funding sources	MARM

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			C.H.Júcar
Post-project management and maintenance
Monitoring

Reasons for river restoration

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Mitigation of a pressure
Hydromorphology	Continuity for organisms, Continuity of sediment transport, Channel pattern/planform, Structure & condition of riparian zones
Biology
Physico-chemical
Other reasons for the project	Recreation

Measures

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Structural measures
Bank/bed modifications	Revetmens with local species, Removal of 5 small weirs, Removal of exotic plants, Installing fish scales in 2 weirs
Floodplain / River corridor	Removal of exotic plants
Planform / Channel pattern	Re-instatement of old course (meander)
Other
Non-structural measures
Management interventions
Social measures (incl. engagement)	Information panels for people, New pahts near the river, New river information panel
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

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

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

Monitoring documents

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Image gallery

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Map of the restoration area

Aerial view of the restoration area

Aerial view of a weir that will be dismantled

Aerial view of the restoration area

Serpis River

Serpis River

Additional documents and videos

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Additional documentation (in Spanish)

Additional links and references

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Link	Description
http://www.boe.es/boe/dias/2010/02/23/pdfs/BOE-B-2010-6963.pdf	Government Gazette

Supplementary Information

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