https://indianpedia.org/index.php?action=history&feed=atom&title=CESC_TunnelCESC Tunnel - Revision history2026-07-31T02:45:35ZRevision history for this page on the wikiMediaWiki 1.45.4https://indianpedia.org/index.php?title=CESC_Tunnel&diff=492747&oldid=prevMusariaz at 21:54, 28 March 20252025-03-28T21:54:19Z<p></p>
<p><b>New page</b></p><div>{{Short description|Tunnel of India and Asia}}<br />
The '''CESC Tunnel''' is situated under the [[Hooghly River]] in [[Kolkata, West Bengal]], India. This is the first [[underwater tunnel]] in Asia, completed in 1931.<ref>{{Cite web |date=2011-06-28 |title=CESC is among the country's most efficient utilities |url=https://www.businesstoday.in/magazine/cover-story/story/cesc-among-100-year-old-indian-companies-22784-2011-06-28 |access-date=2022-09-27 |website=Business Today |language=en}}</ref> It is used for [[electric power transmission]] from [[Kolkata]] to [[Howrah]].<br />
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== History ==<br />
This tunnel was not made by modern [[tunnel boring machine]]. It was made by simple tools like [[spade]], [[shovel]] etc. Indian [[Punjab, India|Punjabi]] labours were digging this [[tunnel]] and attached the cast iron rings with the tunnel wall.<br />
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Sir [[Harley Dalrymple-Hay]] was appointed head of design and construction for the project in 1928 by the [[CESC Limited|Calcutta Electric Supply Corporation]], it was the first underwater tunnel in Calcutta.<ref>{{cite news |title=Kolkata metro: A British engineer's unrealised India underwater train |url=https://www.bbc.co.uk/news/world-asia-india-65773871 |access-date=10 June 2023 |work=BBC News |date=10 June 2023}}</ref> He and the boiler specialist John Lochrance had designed Asia's first underwater tunnel in 1928.<br />
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The construction began in March 1930. At the beginning labours dig a well on the [[Hooghly River]] side of [[Acharya Jagadish Chandra Bose Indian Botanic Garden|Indian Botanic Garden]] in Howrah. After one month, another similar well began digging on the opposite side of Hooghly River at Metiabruz in Kolkata. The wells digging process were taken to complete in first four months. Then the main {{cvt|0.539|km}} tunnel digging process was begun from Metiabruz side, under {{convert|33.5|m}} from the river bottom.<ref>{{Cite web |date=April 18, 2017 |title=Kolkata Metro: 87 years on, boring re-creates CESC feat |url=https://timesofindia.indiatimes.com/city/kolkata/87-yrs-on-boring-re-creates-cesc-feat/articleshow/58229574.cms |access-date=2022-09-27 |website=The Times of India |language=en}}</ref><br />
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The Asia's first [[underwater tunnel]] was finally completed in July 1931. The total construction of this tunnel took 17 months to complete. Two Indian labours and Normal Smith a British worker died during the construction.<br />
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== Importance ==<br />
The CESC tunnel was specially studied by the engineers of [[Kolkata Metro]], for the construction of [[East West Metro Tunnel]].<ref>{{cite tweet |author=CESC Limited |author-link=CESC Limited |user=CESCLimited |number=492194994258972672 |date=2014-07-24 |title=In 1931, CESC Ltd engineers built a tunnel under the Hooghly river which was studied for the East-West corridor of the Kolkata Metro. |language=en |access-date=2022-12-25 |archive-url=https://web.archive.org/web/20220925040628/https://twitter.com/CESCLimited/status/492194994258972672 |archive-date=2022-09-25 |url-status=live}}</ref> This tunnel is an important part of the electric supply system of the [[CESC Limited]] company.<br />
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== References ==<br />
{{Reflist}}<br />
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[[Category:Tunnels]]<br />
[[Category:Tunnels completed in 1931]]<br />
[[Category:Hydroelectricity in Asia]]</div>Musariaz