India is preparing to construct the Kalpasar Project, a monumental engineering marvel featuring a massive 60-kilometer-long dam across the Gulf of Khambhat in Gujarat. This ambitious initiative aims to establish the world’s largest man-made freshwater reservoir inside the sea by trapping billions of liters of river water that currently drains into the Arabian Sea. Designed to address decades of severe drought and drinking water scarcity in the Saurashtra and Kutch regions, the project represents a paradigm shift in water resource management.

The proposed dam will stretch from Aladar to Bhavnagar, with 26 kilometers built entirely inside the sea and the remaining portion connecting to land highways. It will harvest runoff from major rivers like the Sabarmati, Mahi, Dhadhar, and Narmada to store nearly 8,000 million cubic meters of freshwater, capable of irrigating over 10.5 lakh hectares of agricultural land. The concept was first proposed in 1955 by the Dutch company Nedeco and gained significant momentum in 2003 under the leadership of then-Gujarat Chief Minister Narendra Modi, who initiated the feasibility studies.

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Beyond water security, the project will feature a massive highway atop the dam, reducing the travel distance between Surat and Bhavnagar from 240 kilometers to just 60 kilometers. The project also integrates green energy solutions, aiming to generate 1,500 MW of wind power and 1,000 MW of solar power, alongside boosting freshwater fisheries from 2,000 to 20,000 tonnes. To tackle complex marine engineering challenges such as siltation and tidal currents, India has partnered with the Netherlands, leveraging Dutch expertise in sea-reclamation and dam safety.