Kolkata’s Long-Awaited Underwater Metro: A Triumph of Engineering

In 1921, a visionary engineer proposed an underwater train connecting Kolkata and Howrah, but it remained unrealized. Now, over 100 years later, Kolkata is witnessing the realization of its long-awaited dream.

1. Historical Background: In 1921, Sir Harley Dalrymple-Hay envisioned an underwater train beneath the Hooghly River. Unfortunately, the plan was hindered by funding limitations and concerns about the riverbed’s stability.

2. The Kolkata Metro’s Underwater Section: The Kolkata Metro Rail Corporation (KMRCL) is presently constructing a 4.8 km (3 mi) underwater section to link Kolkata and Howrah. Utilizing a tunnel boring machine, the underwater tunnel is expected to be completed by December 2023.

3. Engineering Marvel and Significance: This underwater section is a remarkable engineering feat, being India’s first underwater metro tunnel and one of the world’s deepest. At a depth of 52 feet (16 m) below the riverbed, it is designed to withstand the Hooghly River’s strong currents and tides.

4. Transformative Impact: The completion of the underwater section will revolutionize Kolkata’s transportation system, alleviating traffic congestion and pollution. It will facilitate seamless travel between Kolkata and Howrah while serving as a captivating tourist attraction, attracting millions of visitors annually.

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5. A Triumph of Ingenuity: The Kolkata Metro’s underwater section embodies the engineering prowess of the Indian people. It stands as a testament to India’s progress and its ability to surmount challenges. This landmark project evokes a sense of pride, underscoring the potential achievements that can be realized through collaboration.

The forthcoming completion of Kolkata’s underwater metro represents a significant stride toward enhanced connectivity, sustainable development, and the fulfillment of long-held aspirations.

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