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The Asian Development Bank (ADB) has approved a USD 200 million loan for the Kolkata Municipal Corporation Sustainability, Hygiene, and Resilience Project to modernize sewerage and drainage infrastructure in the city. The project aims to address urban flooding, outdated drainage systems, and climate resilience by constructing 84 km of trunk and secondary pipelines, 176 km of lateral pipelines, one sewage treatment plant, and five pumping stations. Over 277,000 residents will benefit, particularly in vulnerable communities. This initiative aligns with broader climate-resilience efforts, including World Bank-funded flood mitigation in Mumbai and a EUR 100 million AFD-backed stormwater drainage upgrade in Chennai. As Indian cities increasingly seek international funding for climate adaptation, Kolkata's project could serve as a model for urban infrastructure resilience across South Asia.
The Asian Development Bank (ADB) has given the nod to a USD 200 million loan to improve sewerage and drainage infrastructure in Kolkata in order to make the city habitable and climate-resilient. The project is part of the Kolkata Municipal Corporation Sustainability, Hygiene, and Resilience Project, which will work to develop better basic urban services towards sustaining development. Advertisement
Kolkata, India's largest city and one of its most densely populated, is plagued by long-standing drainage and sewerage problems that cause urban flooding and unsanitary conditions. Climate change compounds the situation, with a rise in extreme rainfall events inundating the city's aging infrastructure. ADB project addresses a challenge by constructing 84 kilometers of combined trunk and secondary sewerage and drainage pipes, and 176 kilometers of lateral pipes that will connect to the households. The project will also provide 50,000 house sewer connections, construct one sewage treatment plant, and install five pumping stations. These improvements will directly impact more than 277,000 inhabitants, enhancing health outcomes and overall quality of life, especially for vulnerable populations such as women and children.
The ADB-backed project is one of many countrywide efforts to render India's cities climate-resilient. Other multilateral lenders have similarly extended finance for other cities facing such issues. The World Bank, for instance, has greenlighted a loan for the Mumbai Climate Resilience Improvement Program, aimed at enhancing stormwater drainage systems and reinforcing the city's flood defenses. This project, similar to the one in Kolkata, hopes to minimize low-income settlements' vulnerability to flood and waterborne illness.
Along with these initiatives, the French Development Agency (AFD) also extended a EUR 100 million loan for the modernization of stormwater drainage in Chennai, another large Indian city that is flood-affected. The loan will be utilized to build new drainage systems and strengthen the current system, with the objective of making the city less vulnerable to monsoon floods and improving the resilience of exposed urban areas.
The Kolkata project will act as a model for other Indian and South Asian cities that are facing the same urban infrastructure issues. With cities worldwide set to continue expanding and climate threats on the rise, it becomes increasingly important that cities embrace resilient infrastructure capable of withstanding extreme weather events and preserving public health.
Though the ADB funding support is a big boost for Kolkata, the execution of such large-scale projects would need to be carefully planned and coordinated by all stakeholders. Lessons learned from Kolkata's experience could provide useful input for other cities that are faced with the double challenge of urbanization and climate change.
In a related development, Indian cities are also looking more and more towards international funding agencies, including the World Bank and AFD, to assist in developing climate-resilient infrastructure. Such collaborations are necessary to fill the rapidly widening infrastructure gap in cities and to make future growth not just sustainable but also adaptive to the evolving climate.
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