Case study:Restoration of the marsh "Gallega"

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Location: 37° 6' 32", -6° 22' 46"
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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, Monitoring
Country Spain
Main contact forename MARM
Main contact surname MARM
Main contact user ID
Contact organisation MARM
Contact organisation web site
Partner organisations
Parent multi-site project

Case_study:Doñana 2005

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encompassing the following
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Project summary

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The project "Doñana 2005" aims to restore and rehabilitate the complex hydraulics of the marsh, allowing the system to evolve with the highest degree of naturalness and freedom possible within the constraints of the environment of social, economic, administrative, technical, cultural, etc. There are some actuations included in this project: Route water: environmental restoration project for tourist use; Restoration of the marsh "Gallega"; Control and permeabilization of the marsh to the river, the Brazo de la Torre and Entremuros; Restoration of streams Chico Soto, Soto Grande and Arroyo de la Laguna de los Reyes; Restoration of the stream of the Partido; Recovery of the functionality of Brazo de la Torre; and Recovery Caño Travieso.

The main objectives are: *Restore water inputs to the marsh, in quantity and quality needed to restore the water dynamics of the marsh itself Doñana. *To maintain, without interruption, the permeability between the marsh of Doñana and the Guadalquivir River estuary ensuring the incorporation of flows. *Establish a system for evaluation and monitoring to enable a critical assessment of compliance with the plan and promote a research agenda and a specific line of disclosure, dissemination and presentation of results. *Temporarily prevent the incorporation into the marsh of contaminated water or sediments, whereas such a risk. It is also necessary to prevent such waters can be incorporated into water systems or made available to any user.

  • Restore the original morphology of the marsh.

Monitoring surveys and results

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Lessons learnt

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Image gallery

Aerial view of Gallega marsh in October 2004
Aerial view of Gallega marsh in 2007
Gallega marsh from the FAO embankment
Permeabilization works on the side wall
View of the drainage network in the marsh Gallega

Catchment and subcatchment


River basin district C.H.Guadalquivir
River basin Guadalquivir


River name Guadiamar
Area category
Area (km2)
Maximum altitude category Less than 100 m
Maximum altitude (m) 2 m
0.002 km
200 cm
Dominant geology Calcareous, Silts and clays
Ecoregion Ibero-Macaronesian
Dominant land cover Wetland
Waterbody ID

Other case studies in this subcatchment: Design and Application of a Sustainable Soil Management Model for Orchard Crops in the Doñana National Park Area, Restoration of the marsh "Gallega"


Name Marisma Gallega
WFD water body codes
WFD (national) typology
WFD water body name
Pre-project morphology Marsh
Reference morphology Marsh
Desired post project morphology
Heavily modified water body
National/international site designation
Local/regional site designations Area of Special Conservation Interest
Protected species present
Invasive species present
Species of interest
Dominant hydrology Tidal
Dominant substrate Silt, Clay
River corridor land use
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)
Average channel gradient category
Average channel gradient
Average unit stream power (W/m2)

Project background

Reach length directly affected (m)
Project started 2005/01/01
Works started
Works completed 2005/11/01
Project completed
Total cost category 1000 - 5000 k€
Total cost (k€) 2746 k€
2,746,000 €
Benefit to cost ratio
Funding sources FEDER, 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.Guadalquivir
Post-project management and maintenance

Reasons for river restoration

Mitigation of a pressure Pollution incident
Hydromorphology Channel pattern/planform
Other reasons for the project


Structural measures
Bank/bed modifications
Floodplain / River corridor
Planform / Channel pattern Improvement of channel morphology, Habitat restoration
Other Permeabilize the side wall of the FAO
Non-structural measures
Management interventions
Social measures (incl. engagement)


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
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

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Supplementary Information

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