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[td]| extra =[/td]Revision as of 03:44, 30 August 2025
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[td]}}[/td] [td]The '''Subansiri Lower Dam''', officially named '''Subansiri Lower Hydroelectric Project''' (SLHEP), is an under construction [[gravity dam]] on the [[Subansiri River]] in North Eastern India. It is located {{convert|2.3|km|abbr=on}} upstream of Subansiri River in [[Arunachal Pradesh]]. Described as a [[run-of-the-river]] project by [[NHPC Limited]], the Project is expected to supply 2,000 MW of power when completed.<ref name=NHPCIndia/> The project has experienced several problems during construction to include landslides, re-design and opposition.[/td]
[td]The '''Subansiri Lower Dam''', officially named '''Subansiri Lower Hydroelectric Project''' (SLHEP), is an under construction [[gravity dam]] on the [[Subansiri River]] in North Eastern India. It is located {{convert|2.3|km|abbr=on}} upstream of Subansiri River in [[Arunachal Pradesh]]. Described as a [[run-of-the-river]] project by [[NHPC Limited]], the project is expected to supply 2,000 MW of power when completed.<ref name=NHPCIndia/> The project has experienced several problems during construction, including landslides, re-design and opposition.[/td] [td][/td]
[td][/td] [td]By early 2019, work had stalled on both of the two major dam projects in the Assam region, the [[Dibang Dam|Dibang]] and the Lower Subansiri.<ref name="ncAssam">{{cite news |last1=Talukdar |first1=Sandipan |title=Big Dams in Arunachal likely to Resume Work after NGT Green Signal |url=https://www.newsclick.in/big-dams-arunachal-likely-resume-work-after-ngt-green-signal |accessdate=27 December 2018 |publisher=NewsClick |date=November 28, 2018 }}{{Dead link|date=November 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> The project construction resumed from October 15, 2019, after the clearance by National Green Tribunal.<ref name=":0">{{Cite web |date=30 June 2023 |title=Subansiri Lower Hydroelectric Project Achieves Construction of Dam till Top Level |url=https://www.pib.gov.in/PressReleaseIframePage.aspx?PRID=1936491 |access-date=4 March 2024 |website=Press Information Bureau: Government of India}}</ref> The remaining work of radial gates was expected to be completed after the monsoon season and electricity generation was expected to begin by the end of Financial Year 2023-24.<ref name=":0" />[/td]
[td]By early 2019, work had stalled on both of the two major dam projects in the Assam region, the [[Dibang Dam|Dibang]] and the Lower Subansiri.<ref name="ncAssam">{{cite news |last1=Talukdar |first1=Sandipan |title=Big Dams in Arunachal likely to Resume Work after NGT Green Signal |url=https://www.newsclick.in/big-dams-arunachal-likely-resume-work-after-ngt-green-signal |accessdate=27 December 2018 |publisher=NewsClick |date=November 28, 2018 }}{{Dead link|date=November 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> The project construction resumed from October 15, 2019, after the clearance by National Green Tribunal.<ref name=":0">{{Cite web |date=30 June 2023 |title=Subansiri Lower Hydroelectric Project Achieves Construction of Dam till Top Level |url=https://www.pib.gov.in/PressReleaseIframePage.aspx?PRID=1936491 |access-date=4 March 2024 |website=Press Information Bureau: Government of India}}</ref> The remaining work of radial gates was expected to be completed after the monsoon season and electricity generation was expected to begin by the end of Financial Year 2023-24.<ref name=":0" />[/td] [td]In December 2003 the contract to build the dam and its associated structures was awarded to a consortium of Boguchandgesstroy, Soyuzgidrosptsstry and Soma Enterprise Ltd. Due to difficulties acquiring land around the site, construction could not begin in earnest until 13 months after the contract was awarded. Unexpected geological conditions at the dam site led to landslides and slower tunnel excavation. By November 2007, the river was successfully diverted and in April of the next year, the foundation was clear for construction. Before the foundation was fully prepared it was discovered that bedrock was reached {{Convert|10|m|ft|0|abbr=on}} sooner than expected. This led to an alteration in the dam's design for stability. While the dam was being re-designed, concrete was placed over the foundation to protect it from the upcoming monsoon floods as the [[cofferdam]]s stood a good chance of not protecting the foundation from the strong floods. The re-design was completed in October 2008 and soon after the foundation was once again cleared. In May 2009, work was suspended because of the monsoon season and re-commenced in November of that year.<ref name="HW"/>[/td]
[td]In December 2003 the contract to build the dam and its associated structures was awarded to a consortium of Boguchandgesstroy, Soyuzgidrosptsstry and Soma Enterprise Ltd. Due to difficulties acquiring land around the site, construction could not begin in earnest until 13 months after the contract was awarded. Unexpected geological conditions at the dam site led to landslides and slower tunnel excavation. By November 2007, the river was successfully diverted and in April of the next year, the foundation was clear for construction. Before the foundation was fully prepared it was discovered that bedrock was reached {{Convert|10|m|ft|0|abbr=on}} sooner than expected. This led to an alteration in the dam's design for stability. While the dam was being re-designed, concrete was placed over the foundation to protect it from the upcoming monsoon floods as the [[cofferdam]]s stood a good chance of not protecting the foundation from the strong floods. The re-design was completed in October 2008 and soon after the foundation was once again cleared. In May 2009, work was suspended because of the monsoon season and re-commenced in November of that year.<ref name="HW"/>[/td] [td][/td]
[td][/td] [td]As of November 2011, the dam reached an elevation of {{convert|138|m|abbr=on}}, just below the spillway elevation of {{convert|145|m|abbr=on}}. On 16 December 2011, construction equipment was halted by protests.<ref name="CD">[/td]
[td]As of November 2011, the dam reached an elevation of {{convert|138|m|abbr=on}}, just below the spillway elevation of {{convert|145|m|abbr=on}}. On 16 December 2011, construction equipment was halted by protests fueled by concerns of the project's environmental and social impacts on the downstream dwellers.<ref name="CD">[/td] [td]{{cite web[/td]
[td]{{cite web[/td] [td]|url=http://www.chinadialogue.net/article/show/single/en/4799[/td]
[td]|url=http://www.chinadialogue.net/article/show/single/en/4799[/td]
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