FLOOD-RESILIENT INFRASTRUCTURE AND COMMUNITY ADAPTATION: A COMPARATIVE STUDY OF BANGLADESH AND THE NETHERLANDS
Résumé (anglais)
Achieving SDG 11 (Sustainable Cities and Communities) requires ensuring access for all to adequate, safe, and affordable housing and basic services (Target 11.1) and providing access to safe, affordable, accessible and sustainable transport systems for all (Target 11.2), with particular attention to the vulnerable. Target 11.5 significantly reduces the number of deaths and the number of people affected by disasters, including floods. Target 11.B increases the number of cities adopting integrated policies for climate change mitigation and adaptation. Floods are the most frequent and damaging natural disaster globally, affecting over 2 billion people between 1998 and 2017. Low-lying deltaic nations, including Bangladesh and the Netherlands, are among the most flood-vulnerable countries, yet they have developed contrasting models of flood-resilient infrastructure and community adaptation. This study conducts a comparative analysis of flood-resilient infrastructure and community adaptation in Bangladesh and the Netherlands, two countries with shared geography as low-lying deltas with major rivers and sea-level rise risk, but vastly different economic, technological, and institutional contexts. The Netherlands has developed one of the world's most sophisticated flood defense systems, including the Delta Works with dikes, levees, dams, and storm surge barriers, the Room for the River programme which gives rivers more space to flood rather than only raising dikes, the Maeslantkering as the largest moving storm surge barrier in the world, the Oosterscheldekering as a 9-kilometer storm surge barrier, sand suppletion for beach nourishment, and high-resolution forecasting. The Dutch approach has shifted from fighting water through high dikes and engineering to living with water through spatial adaptation and multi-layered safety. Community adaptation in the Netherlands is advanced, with flood safety standards, early warning systems through mobile alerts, flood-risk awareness campaigns, and citizen science networks. Bangladesh faces much higher flood risk, with 60 to 70 percent of land area flooded annually during monsoon floods, cyclones generating storm surges up to 10 meters, and projected sea-level rise. Bangladesh has developed low-cost, community-based flood adaptation, including the Cyclone Preparedness Programme with over 55,000 volunteers and more than 6,000 cyclone shelters, community-based early warning using indigenous forecasting, flood-resilient housing such as raised plinths and floating gardens, amphibious houses, flood shelters, and embankments. The Bangladesh Delta Plan 2100 provides a long-term adaptation roadmap. However, Bangladesh faces challenges including underfunding, embankment maintenance failures, cyclone shelter shortages, and climate migration. Using a qualitative comparative case study methodology, the study analyzes secondary data from government reports, international databases, and peer-reviewed literature over the period 2000 to 2025. The study finds that both countries have reduced flood fatalities dramatically. The Netherlands has recorded no storm surge deaths since 1953. Bangladesh has reduced cyclone deaths from 500,000 in 1970 to 35 in 2022, a 99.9 percent reduction. The study concludes that flood-resilient infrastructure requires hybrid approaches combining hard infrastructure, nature-based solutions, and community-based adaptation. Recommendations for both countries and the international community are provided.
Mots-clés: Flood-resilient infrastructure; community adaptation; Bangladesh; Netherlands; SDG 11; delta management; early warning systems; climate adaptation
Résumé (français)
Atteindre l'ODD 11 (Villes et communautés durables) nécessite de réduire le nombre de personnes touchées par les catastrophes, y compris les inondations. Cette étude analyse les infrastructures résilientes aux inondations et l'adaptation communautaire au Bangladesh et aux Pays-Bas. Les Pays-Bas ont développé un système de défense contre les inondations sophistiqué : Delta Works (digues, barrières anti-tempête), Room for the River. L'approche néerlandaise est de haute technologie et coûteuse. Le Bangladesh a développé une adaptation à faible coût et communautaire : programme de préparation aux cyclones (plus de 55 000 bénévoles, plus de 6 000 abris), prévisions indigènes, maisons surélevées, jardins flottants. Les deux pays ont réduit les décès dus aux inondations de manière spectaculaire. Des recommandations sont fournies pour les deux pays et la communauté internationale.
Mots-clés: infrastructures résilientes aux inondations, adaptation communautaire, Bangladesh, Pays-Bas, ODD 11, gestion des deltas, systèmes d'alerte précoce, adaptation climatique