https://indianpedia.org/index.php?action=history&feed=atom&title=Kodaganar_DamKodaganar Dam - Revision history2026-07-31T11:34:52ZRevision history for this page on the wikiMediaWiki 1.45.4https://indianpedia.org/index.php?title=Kodaganar_Dam&diff=510189&oldid=prevNereidaMccurdy5 at 23:41, 18 June 20252025-06-18T23:41:09Z<p></p>
<p><b>New page</b></p><div>{{More footnotes needed|date=August 2018}}<br />
{{Use dmy dates|date=July 2020}}<br />
{{Use Indian English|date=July 2020}}<br />
{{Infobox dam<br />
|name =Kodaganar Dam (a.k.a.Alagapuri Dam)<br />
| coordinates = {{coord|10|35|40|N|77|58|20|E|type:landmark_region:IN|display=inline,title}}<br />
|location = Alagapuri, [[Dindigul District]], [[Tamil Nadu]], [[India]]<br />
|construction_began =<br />
|opening =1977 and 1995<br />
|dam_length =<br />
|dam_width_base =<br />
|res_name =<br />
|extra =<br />
|image =<br />
|dam_height ={{convert|12.75|m}}<br />
}}<br />
<br />
'''Kodaganar dam''', also known as '''Alagapuri dam''' an irrigation dam built on [[Kodaganar River]], located in Alagapuri village, near [[Vedasandur]], [[Dindigul District]] in [[Tamil Nadu]] state of [[India]]. First built in 1977 the dam collapsed in 1977 flooding downstream due to multiple factors. The Dam was later fully reconstructed and reopened in 1994.<br />
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It irrigates some of the driest parts of [[Dindigul district]] and [[Karur district]] through minor canals alongside Kodaganar River till it joins [[River Cauvery]] near Karur.<br />
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==Construction==<br />
Kodaganar Dam was constructed in 1977 as an earthen gravity and masonry dam with regulators, with five vertical lift shutters each 3.05 m wide. The original dam was 15.75 m high from the foundation basement with height of 11.45 m above the river bed. The storage capacity at full reservoir level was 12.3 million cubic meters, while the flood capacity was 1275 cubic meter per second. A 2.5 m free board above the maximum water level was provided.<br />
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==Dam failure==<br />
Following heavy rains in the Kodaikanal range during 1978 in [[Western Ghats]], flooding happened due to overtopping by flood waters. The waters which flowed over the downstream slopes of the embankment and breached the dam along various reaches.<ref>{{cite news|url=https://timesofindia.indiatimes.com/india/Centre-mulls-dam-maintenance-bill/articleshow/51049199.cms|title=Centre mulls dam maintenance bill|newspaper=[[The Times of India]]|date=19 February 2016|first=Vishwa|last=Mohan|accessdate=12 July 2020}}</ref> In addition, there was an [[Earthquake]] registered during the period of failure although the foundation was strong. Tough shutters were promptly operated during flood, the staff could only partially lift the shutters, due to power failure the additional stand-by generator commissioned did not help either. The staff then opted for the manual operation of shutters. In spite of all efforts, water eventually overtopped the embankment. Water gushed over the rear slopes, as a cascade of water was eroding the slopes. Breaches of length 20 m to 200 m were observed. It appeared as if the entire dam was overtopped and breached.<ref>{{cite web|url=https://nptel.ac.in/courses/105106114/pdfs/Unit41/41_2.pdf|format=PDF|title=41.2 History of Dam Failures |website=Nptel.ac.in|accessdate=14 August 2018}}</ref><br />
Flooding happened downstream and the dam then part of [[Madurai district]] and [[Tiruchirappalli district]] with many lives lost downstream mostly in present-day Aravakuruchi taluk.<br />
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==Reconstruction==<br />
The dam was later fully reconstructed and reopened in mid-1990s with a height of 12.75 meters.<br />
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==References==<br />
<ref>{{cite web|url=http://www.india-wris.nrsc.gov.in/wrpinfo/index.php?title=Dams_in_Tamil_Nadu|title=Dams in Tamil Nadu|website=India-wris.nrsc.gov.in|accessdate=14 August 2018|archive-date=24 August 2017|archive-url=https://web.archive.org/web/20170824220348/http://www.india-wris.nrsc.gov.in/wrpinfo/index.php?title=Dams_in_Tamil_Nadu|url-status=dead}}</ref><br />
<ref>{{cite web|url=http://ethesis.nitrkl.ac.in/5837/1/212CE4066.pdf|format=PDF|title=DAM BREAK ANALYSIS USING MIKE11 FOR LOWER NAGAVALI DAM AND RUKURA DAM|website=Ethesis.nitrkl.ac.in|accessdate=14 August 2018}}</ref><br />
{{Reflist}}<br />
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[[Category:Dams in Tamil Nadu]]<br />
[[Category:Kaveri River]]<br />
[[Category:Dindigul district]]<br />
[[Category:Dams completed in 1977]]<br />
[[Category:1977 establishments in Tamil Nadu]]<br />
[[Category:20th-century architecture in India]]</div>NereidaMccurdy5