[ Évaluation du projet d’assainissement et de restructuration urbaine face aux inondations et de ses impacts économiques et environnementaux dans le quartier de Pikine à Saint-Louis ]
Volume 48, Issue 2, April 2026, Pages 642–656
Samba Mbaye Dia1, Louis Victor Eugene Sambou2, Coumba Ndiaye3, and Saidou Ndao4
1 Laboratoire des Sciences et Technologies de l’Eau et de l’Environnement (LaSTEE), École Polytechnique de Thiès BPA 10, Thiès, Senegal
2 Laboratoire des Sciences et Technologies de l’Eau et de l’Environnement (LaSTEE), École Polytechnique de Thiès BPA 10, Thiès, Senegal
3 Laboratoire des Sciences et Technologies de l’Eau et de l’Environnement (LaSTEE), École Polytechnique de Thiès BPA 10, Thiès, Senegal
4 Laboratoire des Sciences et Technologies de l’Eau et de l’Environnement (LaSTEE), École Polytechnique de Thiès BPA 10, Thiès, Senegal
Original language: French
Copyright © 2026 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Flooding in Senegal, particularly in cities such as Saint-Louis, has long represented a major challenge for public authorities. The Pikine neighborhood in Saint-Louis was characterized by a significant lack of sanitation infrastructure and by unplanned urban development, which hindered the proper drainage of stormwater, wastewater, and solid waste. In response to this situation, the Government of Senegal implemented a sanitation and urban restructuring project aimed at reducing flooding and its impacts in Pikine. The objective of this study was to evaluate the effectiveness of this project in terms of flood reduction as well as its economic and environmental impacts within the neighborhood. A mixed-methods approach was adopted, combining a household survey conducted with 380 heads of households and interviews with institutional stakeholders involved in the project’s implementation. The findings indicate that 88% of respondents reported no longer experiencing flooding. In addition, 52% stated that septic tanks are now emptied by vacuum trucks, while 84% confirmed that solid waste is collected by carts or trucks. Furthermore, 55% of households expressed overall satisfaction with the project. However, stakeholders emphasized the need for regular maintenance and the establishment of sustainable management mechanisms to ensure the long-term durability of the infrastructure and a lasting improvement in household living conditions.
Author Keywords: pikine, flooding, sanitation, urban restructuring, sustainable management, maintenance.
Volume 48, Issue 2, April 2026, Pages 642–656
Samba Mbaye Dia1, Louis Victor Eugene Sambou2, Coumba Ndiaye3, and Saidou Ndao4
1 Laboratoire des Sciences et Technologies de l’Eau et de l’Environnement (LaSTEE), École Polytechnique de Thiès BPA 10, Thiès, Senegal
2 Laboratoire des Sciences et Technologies de l’Eau et de l’Environnement (LaSTEE), École Polytechnique de Thiès BPA 10, Thiès, Senegal
3 Laboratoire des Sciences et Technologies de l’Eau et de l’Environnement (LaSTEE), École Polytechnique de Thiès BPA 10, Thiès, Senegal
4 Laboratoire des Sciences et Technologies de l’Eau et de l’Environnement (LaSTEE), École Polytechnique de Thiès BPA 10, Thiès, Senegal
Original language: French
Copyright © 2026 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Flooding in Senegal, particularly in cities such as Saint-Louis, has long represented a major challenge for public authorities. The Pikine neighborhood in Saint-Louis was characterized by a significant lack of sanitation infrastructure and by unplanned urban development, which hindered the proper drainage of stormwater, wastewater, and solid waste. In response to this situation, the Government of Senegal implemented a sanitation and urban restructuring project aimed at reducing flooding and its impacts in Pikine. The objective of this study was to evaluate the effectiveness of this project in terms of flood reduction as well as its economic and environmental impacts within the neighborhood. A mixed-methods approach was adopted, combining a household survey conducted with 380 heads of households and interviews with institutional stakeholders involved in the project’s implementation. The findings indicate that 88% of respondents reported no longer experiencing flooding. In addition, 52% stated that septic tanks are now emptied by vacuum trucks, while 84% confirmed that solid waste is collected by carts or trucks. Furthermore, 55% of households expressed overall satisfaction with the project. However, stakeholders emphasized the need for regular maintenance and the establishment of sustainable management mechanisms to ensure the long-term durability of the infrastructure and a lasting improvement in household living conditions.
Author Keywords: pikine, flooding, sanitation, urban restructuring, sustainable management, maintenance.
Abstract: (french)
La question des inondations au Sénégal, en particulier dans des villes comme Saint - Louis a longtemps constitué un défi majeur pour le gouvernement sénégalais. Le quartier de Pikine, à Saint – louis, était caractérisé par un déficit important en infrastructures d’assainissement et par une urbanisation désorganisée empêchant l’évacuation des eaux pluviales, des eaux usées et des ordures. Face à cette situation, l’Etat du Sénégal a mise en œuvre un projet d’assainissement et de restructuration urbaine visant à réduire les inondations et leurs impacts à Pikine. L’objectif de cette étude a été d’évaluer ce projet au regard de la réduction des inondations ainsi que ses impacts économiques et environnementaux dans le quartier. Une méthodologie mixte a été adoptée, combinant des enquêtes par questionnaire auprès de 380 chefs de ménages et des entretiens avec des acteurs institutionnels impliqués dans la réalisation du projet. Les résultats obtenus montrent que 88% des enquêtés déclarent ne plus subir des inondations, 52% indiquent que les fosses septiques sont désormais vidangées par les camions, et 84% affirment que les ordures sont collectées par les charrettes ou par les camions. Par ailleurs, 55% des ménages se déclarent satisfait du projet. Toutefois, les acteurs interrogés recommandent un entretien régulier et la mise en place d’une gestion durable afin d’assurer leur pérennité pour une amélioration durable des conditions de vie des ménages.
Author Keywords: pikine, inondation, assainissement, restructuration urbaine, gestion durable, entretien.
How to Cite this Article
Samba Mbaye Dia, Louis Victor Eugene Sambou, Coumba Ndiaye, and Saidou Ndao, “Evaluation of the sanitation and urban restructuring project in response to flooding and its economic and environmental impacts in the Pikine neighborhood of Saint-Louis,” International Journal of Innovation and Applied Studies, vol. 48, no. 2, pp. 642–656, April 2026.
