1. General information
Location and description of the intervention
City or FUA
Nouakchott
Region
Africa
Short description of the intervention
Mauritania is one of the Sahelian countries most severely affected by the periods of drought occurring since 1968. The resulting desertification is exacerbated by human activities, which have compounded climatic factors, with direct consequences for an already precarious situation. Environmental degradation, responsible for the dangerous displacement of sand dunes in Mauritania, has wiped out homes, livestock and livelihoods throughout the desert country. In Nouakchott, Mauritania’s capital and biggest city, the coast are protected by a fragile wall of dunes at risk from natural erosion, sand mining, grazing of livestock on dune vegetation, and careless abuse of the landscape for leisure like dune racing. In this scenario, protecting the dunes is a priority, and the government is using World Bank financing to overcome the challenge. From a climate change perspective, the intervention addresses accelerating erosion that allows seawater to wash into the city, assaulting buildings, roads, fresh water supply and public space. From a biodiversity perspective, the intervention aims at sustaining the balance between the food for the livelihoods of the local population and the preservation of the rich coastal biodiversity. (1,2)
Address

Nouakchott
Mauritania

Type of area before implementation of the NBS
Please specify “other type of area” before implementation of the NBS
Sea coast
Timeline of intervention
Start date of the intervention (planning process)
unknown
Start date of intervention (implementation process)
2018
End date of the intervention
ongoing
Present stage of the intervention
Goals of the intervention
Nouakchott is mostly below sea level and is particularly vulnerable to rising groundwater levels, seawater intrusions, porous soils, sand extractions, and heavy rains in low-lying areas. Parts of Nouakchott is under sea-level level, vulnerable to floods, and protected from the Atlantic Ocean by just a string of dunes which adds to the new development challenges of the country. All of these factors have been the engine for the present intervention. The objectives are in line with tackling issues of climate change and its effects on biodiversity loss:
1. To reinforce the coastal dunes that protect Nouakchott by applying nature-based solutions, particularly vegetation for stabilisation of the soil as sand dunes have become more fragile, leading to coastal erosion and flooding, and poor management has led to contamination by urban waste and effluents.
2. To protect coastal dunes as they are high-value areas of biodiversity, providing a home to rare flora and offering protection to coasts against storms. They can, however, be vulnerable to degradation and should therefore be protected. The challenge lies in the changing nature of dunes as an ecosystem type.
3. To promote ecotourism for biodiversity protection and to build capacity within local communities by raising awareness of the changing climatic conditions and the changing ecosystem.
4. To preserve natural infrastructure that can provide ecological services. These services include water filtration services; habitats that serve as fisheries, hatcheries, or refuges; and the coastal infrastructure protection that anchors them. (1,2)
Quantitative targets
Addressing 754 km of the coastal line
Targeting 3 mil. people living on the coast
Comprising 2 cities: Nouakchott and Nouadhibou
Increasing and preserving areas with green or natural infrastructure including (but not limited to): mangroves, coastal marine aggregates, vegetation, coastal forests)
(1,2)
Monitoring indicators defined
Size area considered for the intervention
Number of people benefiting from the intervention
Number of cities considered for the intervention
Type of vegetation considered (1,2)
Habitats and biodiversity conservation: What types of conservation goals are / were defined for the NBS intervention?
Implementation activities
The project kick-started in 2018 as a regional project in West Africa and includes 6 countries. The intervention is being implemented with the support of the WACA Resilience Investment Project, led by West African governments, and will protect against coastal erosion through a range of activities, including fixing dunes, and restoring wetlands and mangroves, replenishing beaches, and building seawalls and dikes. Local land-use plans are being prepared for the two major growth poles, to align the different sector strategies and to preserve spaces for crucial nature-based interventions. For example, while Nouakchott’s dunes provide the protection of a natural barrier, they are becoming fragile because of human activities; WACA has already completed mechanical and biological fixation of more than 30 hectares of the coastal dunes and will restore weak sections of the dunes systems in 2021. In addition, the project has been working with the National Park of Diawling to develop a resilience plan and restore natural ecosystems by fighting invasive species, including Typha, to maintain fishing as a source of livelihood for the population while preserving local and rich biodiversity. (1,2)
NBS domain and interventions
Ecological domain(s) where the NBS intervention(s) is/are implemented
Blue infrastructure
Coastlines
Coastal wetland, mangroves and salt marshes
Other
Please specify "other blue area"
Coastal dunes (1)
Vegetation Type
Please specify how many trees were planted
Unknown
Amenities offered by the NBS
Services
Expected ecosystem services delivered
Provisioning services
Food for human consumption (crops, vegetables)
Water (surface and ground water for drinking and non-drinking purposes)
Regulating services
Coastal protection
Flood regulation
Water purification / filtration
Habitat and supporting services
Habitats for species
Cultural services
Intellectual interactions (scientific and / or educational)
Social and community interactions
Scale
Spatial scale
Meso-scale: Regional, metropolitan and urban level
Beneficiaries
Governance
Governance arrangements
Please specify the roles of the specific government and non-government actor groups involved in the initiative
The initiative is government-led. The Ministry of Environment and Sustainable Development is the lead agency for the coastal resilience efforts. It has established a project implementation unit to coordinate project activities supported by multiple partners. The funds are provided through WACA - West Africa Coastal Areas and World Bank. The project will boost regional cooperation to address coastal erosion by working with four regional institutions - the West African Economic and Monetary Union (WAEMU), The Abidjan Convention, The Dakar-based Center for Ecological Monitoring (CSE), and the International Union for Conservation of Nature (IUCN). (3)
Key actors - Other stakeholders involved (besides initiating actors)
National government
Non-government organisation/civil society
Researchers/university
Multilateral organisation
Transnational network
Participatory methods/forms of community involvement used
Policy drivers
NBS intervention implemented in response to an Regional Directive/Strategy
Yes
Please specify the "Regional Directive/Strategy"
This initiative is not a response to an EU Directive; however, it is worth mentioning that its implementation has been viewed as a response to the Paris Agreement of 2015 and the Abidjan Convention Protocols for the Marine Environment. (2)
NBS intervention implemented in response to a national regulations/strategy/plan
Yes
Please specify the national regulations/strategy/plan
The intervention is based on 2 documents:
1. The Mauritania Coastal Master Plan (PDALM), drawn up in 2005, was the first document to address sustainable coastal development from a national perspective. The PDALM was followed in 2007 by the promulgation of a coastal decree (“Ordonnance du littoral”) and was updated in 2017. Together with the first multi-sectoral coastal investment plan (MSIP), it supports the design of climate-smart coastal investment projects in Mauritania.
2. Mauritania has developed a 2018-2022 Coastal Master Plan to address climate change and associated risks. The plan takes a spatial approach to coastal zone development and includes an overall climate adaptation and risk reduction approach, as well as sectoral approaches for fisheries, meteorology and hydrology. The plan also includes actions on information management, governance, legal reforms, and a Multi-Sector Investment Plan (MSIP). (1,2)
NBS intervention implemented in response to a local regulation/strategy/plan
Unknown
Mandatory or voluntary intervention
Voluntary (spontaneous)
Enablers
Presence of specific city-level GI/NBS vision/strategy/plan - mentioned in connection to the project
Unknown
Presence of specific city-level GI/NBS section/part in a more general plan - mentioned in connection to the project
Yes
Please specify the general plan with GI/NBS section
One of the sources mentions that one of the funders, the Japan International Cooperation Agency, contributed at the management of developpment of Nouakchott city by formulating Master Plan targeting 2040 and developping capacity of relevant organizations on formulation and implementation of urban planning. (4)
If there is a relevant strategy or plan, please specify the theme / type of the plan.
Presence of city network or regional partnerships focused on NBS - mentioned in connection to the project
Yes
Please specify
Coastal resilience in the following six countries: Benin, Côte d'Ivoire, Mauritania, Senegal, São Tomé and Príncipe, and Togo. (1)
Presence of GI / NBS research project - mentioned in connection to the project
Unknown
Subsidies/investment for GI / NBS in the city - mentioned in connection to the project
Unknown
Co-finance for NBS
Yes
Co-financing governance arrangements
Yes
Co-governance arrangement
Was this co-governance arrangement already in place, or was it set up specifically for this NBS?
Financing
What is/was the Cost/Budget (EUR) of the NBS or green infrastructure elements?
Unknown
What are the total amount of expected annual maintenance costs?
Unknown
What is the expected annual maintenance costs of the NBS or GI elements?
Unknown
Please specify cost savings
Unknown
Please specify total cost (EUR)
Government of the Islamic Republic of Mauritania: US$2,000,000 - 1.8 mil. EUR
World Bank: US$20,000,000 - 18 mil. EUR
Convergency rate available at https://www.xe.com/currencyconverter/convert/?Amount=2000000&From=USD&To=EUR (accessed 4-3-2022)
Non-financial contribution
Yes
Business models
Which of the involved actors was motivated by this model?
Type of innovation
Please specify social innovation
The intervention is innovative from a governance perspective as it is introducing an innovative adaptive management approach, that changes the path to achieve the goals in response to many behavioural changes. The project provides for hiring an institutional development specialist (IDS) by each country's project implementation unit and the WACA Regional Integration Support Unit. These specialists work on improving coordination and support stakeholders in change management. (2)
Please specify novelty level of the innovation
It is mentioned that the Netherlands is recognised as a global leader in innovative solutions for coastal zone management, including flood risk, erosion control, and water resource management. These solutions include novel approaches to traditional grey infrastructure and nature-based solutions that promote ecosystem-based approaches to risk management. Proven solutions like these, adapted to a variety of West African contexts, will help manage coastal risks in WACA countries through hybrid approaches using both grey and green solutions, achieving greater resilience along with co-benefits such as biodiversity conservation and livelihood diversification and strengthen natural resource management. (2)
Please specify Replicability/Transferability
Yes, the project has been replicated in the city of Nouadhibou. (2)
Impacts, benefits
Description of environmental benefits
In Nouakchott, it is expected that the project will contribute to the sealing of breaches, fixing of dunes and crossing of the dune cord Diawling: fixing of the dune cord, rehabilitation and extension of the existing dyke.
Development and protection of Baie de l'étoile: biodiversity protection measures at the river level in Spartine, financing of an environmental and social management framework, and financing of works and equipment for eco-lodges. (1)
It is also expected from the project to reduce flooding by rehabilitating lagoons and drainage systems and by improving watershed management. Interventions will also support pollution control by better treating marine litter, oil spills and industrial and municipal waste. (3)
Please specify other socio-cultural impact
Improved governance of sea coast ecosystems (1)
Description of economic benefits
It is expected that the project will sustain investments and attract more investors. So the project will provide technical assistance for regionally integrated spatial planning, prepare a yearly report on the state of West Africa’s coasts, and support the revision and enforcement of laws and protocols contributing to healthy and productive coasts. (3)
Description of social and cultural benefits
Community development activities: initiatives to build resilience and improve the livelihoods and well-being of populations in eight communes: Sebkha (cold chain; fish drying), El Mina (Salines), Tevragh Zeina ( development of ponds), Dakhlet Nouadhibou (net weaving and cold chain), Benichab, Keur Macen (villages of Ndaigo), Tiguint, and Chami. (1)
The project is expected to offer Mauritania support to establish its strategic, political and regulatory framework on the coast and the development of a coastal monitoring system in connection with the updated PDALM (2017). Activities will be implemented under six sub-components: (i) strengthening institutions and governance; (ii) strengthening the legislative, regulatory and policy framework; (iii) spatial and multi-sector coastal planning; (iv) decision support tools (blue accounting); (v) early warning system and Hydromet; and (vi) establishment of a national mechanism for coastal observation. (1)
Type of reported impacts
Indicators
Unknown
Analysis of specific impact categories
Job creation: The NBS created ...
Negative impacts: Did the project cause any problems or concerns?
No information was found regarding negative impacts of the project
COVID-19 pandemic
As of April 5, 2022, there was no information regarding the impacts of Covid 19 on this particular intervention.
Methods of impact monitoring
Evidence for use of assessment
Presence of an assessment, evaluation and/or monitoring process
Yes
Presence of indicators used in reporting
Yes
Presence of monitoring/evaluation reports
No evidence in public records
Availability of a web-based monitoring tool
No evidence in public records
Impact assessment mechanism
Name of any specific impact assessment tools
Unknown
Use of GIS in mapping impacts
Yes
Citizen involvement
Citizens involvement in assessment/evaluation
Yes
Mode(s) of citizen involvement in evaluation/assessment
Citizens involvement in the analysis of the assessment/evaluation
Yes
Please specify
Consultations on the preparation of resilience and adaptation plans with local communities in Ndiago, a small village affected by coastal erosion in the south, will be supported by the project.(1)
Follow-up to the evaluation / assessment
Unknown
References
Documents relevant to the intervention
Attachment Size
World Bank Report (6.53 MB) 6.53 MB
Tool Kit (5.53 MB) 5.53 MB
List of references
1. Waca Programe (2019), RÉPUBLIQUE ISLAMIQUE DE MAURITANIE, TOOLKIT D’INFORMATION, available at https://www.wacaprogram.org/sites/waca/files/inline-files/Toolkit%20Waca%20Mauritania.pdf (accessed 04-04-2022)
2. World Bank (2020), RESILIENT COASTLINES. RESILIENT COMMUNITIES, available at https://documents1.worldbank.org/curated/en/462991621974738944/pdf/Resilient-Coastlines-Resilient-Communities.pdf (accessed 04-04-2022)
3. World Bank (2018), World Bank Board Approves West Africa Coastal Areas (WACA) Resilience Investment Project, available at https://www.worldbank.org/en/news/press-release/2018/04/09/world-bank-board-approves-west-africa-coastal-areas-waca-resilience-investment-project (accessed 04-04-2022)
4. JICA (2010), Information Disclosure under JICA Guidelines for Environment and Social Considerations (April, 2010) and the Guidelines revised thereafter, available at https://www.jica.go.jp/english/our_work/social_environmental/id/africa/mauritania/c8h0vm00009ulj9f.html (accessed 04-04-2022)
Comments and notes
Public Images
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Image E
Human settlements
https://documents1.worldbank.org/curated/en/462991621974738944/pdf/Resilient-Coastlines-Resilient-Communities.pdf
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Image F
Vegetation
https://documents1.worldbank.org/curated/en/462991621974738944/pdf/Resilient-Coastlines-Resilient-Communities.pdf
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Image 2
Image B
https://www.wacaprogram.org/country/mauritania
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Image C
https://www.wacaprogram.org/country/mauritania
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Image D
Consultations
https://www.wacaprogram.org/country/mauritania