Canal Restoration in Kochi, India

This report by the Nature-Based Infrastructure (NBI) Global Resource Centre evaluates the economic and environmental potential of nature-based and hybrid green-grey infrastructure to mitigate flooding and water pollution in the canals of Kochi, India, specifically focusing on a pilot project for the Pandarachirathodu Canal.

• A survey of more than 300 households located along the canalside revealed that 44% of respondents experienced flooding during heavy rainfall and 39% experienced tidal flooding, a situation expected to deteriorate due to sea-level rise and more extreme monsoons caused by climate change.
• The report analyzed three intervention scenarios for the Pandarachirathodu Canal: a hybrid 'integrated wetland technology' (IWT) for wastewater treatment and flood prevention; a combination of IWT with nature-based interventions like mangroves, floating wetlands, and culvert removal; and a comprehensive approach adding a biodiversity park for job creation and ecotourism.
• All three analyzed scenarios were deemed investment worthy. Scenarios 2 and 3, which combine IWT with nature-based infrastructure, produced the highest net benefit at between INR 325 and 331 million. However, Scenario 1 (the baseline hybrid IWT) provided the highest benefit-to-cost ratio, where an investment of INR 1 can yield INR 9.78 in net benefits.

APA

Kapetanakis,, A. B. B. C. (2024). Canal Restoration in Kochi, India. International Institute for Sustainable Development. https://www.iisd.org/publications/report/nbi-canal-restoration-kochi-india

Chicago

Kapetanakis,, Andrea Bassi,Ronja Bechauf,Edoardo Carlucci,Michail. Canal Restoration in Kochi, India. International Institute for Sustainable Development, 2024. https://www.iisd.org/publications/report/nbi-canal-restoration-kochi-india.

Wikipedia

{{cite report |last1=Kapetanakis, |first1=Andrea Bassi,Ronja Bechauf,Edoardo Carlucci,Michail |title=Canal Restoration in Kochi, India |publisher=International Institute for Sustainable Development |date=31 July 2024 |url=https://www.iisd.org/publications/report/nbi-canal-restoration-kochi-india |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{kapetanakis2024canal, author = {Kapetanakis,, Andrea Bassi,Ronja Bechauf,Edoardo Carlucci,Michail}, title = {{Canal Restoration in Kochi, India}}, institution = {International Institute for Sustainable Development}, year = {2024}, month = jul, url = {https://www.iisd.org/publications/report/nbi-canal-restoration-kochi-india}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }