A landslide incident has partially damaged the power house tunnel of NHCP’s Dhauliganga HEP in Pithoragarh district of Uttarakhand. The incident occurred in the evening of Aug 30, 2025 after heavy rainfall also blocked the mouth of underground tunnel with rocks and debris. The HEP is built on Dhauliganga river in Dharchula tehsil of the district.
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Aug 2025: Ravi Flood Damages Madhopur Barrage Gates in Punjab
(Feature Image: 2 gates of the Madhopur Barrage washed away on Aug 27, flooding parts of Pathankot & Gurdaspur.)
A severe flood spell in Ravi river has damaged at least three flood gates of Madhopur barrage in Pathankot district of Punjab. The incident occurred in the evening of Aug 27, 2025 amid an effort to open the jammed gates of the barrage. The situation became critical after 2.12 lakh cusecs of water discharged from the upstream Ranjit Sagar Dam (RSD) dangerously increased the flood level at the barrage on Aug. 26.
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DRP 250825: Threat of Dam Floods continue to be ignored
(Feature Image: The release of water from Pong Dam has brought devastation to Mand Bhograwan village in Kangra district, where the sudden rise in the Beas river has submerged several acres of fertile land and put houses at risk. Aug 17.)
Sudden release of large quantity of water from the dams has the potential of creating avoidable floods in the downstream areas as we could see last week in case of Ukai Dam water releases affecting Surat in South Gujarat, Ujani and Jayakwadi dam water releases in Maharashtra, Bhakra and Pong dam releases in Punjab and Himachal Pradesh, among others. In all these cases, we can show that earlier water release was warranted based on available information, considering the carrying capacity of the downstream river, but such action was delayed till either the dam was full before water started (e.g. Ujani and Jayakwadi) or too large water releases created avoidable flood impacts in case of Ukai Dam on Tapi River in South Gujarat and also in case of Bhakra and Pong dams. There were also extensive damages in Mirzapur and Chandauli districts of Uttar Pradesh due to sudden release of water from a number of dams including Chandra Prabha Dam, Ahraura dam and Jargo Dam among others.
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DRP 18 Aug2025: Sustainable Hydropower an Oxymoron?
Analyzing a recent paper authored by 37 persons mainly from academics and hydropower related companies on “Sustainable Hydropower”, Eugene Simonov shows why the phrase is an oxymoron, a contradiction in terms. The paper fails to even refer to the most important work on hydropower projects, the report of the World Commission on Dams.
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Aug 2025: Five Road Workers Missing After Flashfloods in Pauri-Uttarakhand
(Feature Image: Search Operation on Aug 07, 2025 in Katola gaad of Bankura village in Chauthan Patti, Thaisain, Pauri. Source: Uttarakhand Police)
The Chauthan Patti under Thailisain block of Pauri Garhwal district in Uttarakhand has again been battered by excessive rainfall events on August 06 2025. Villagers have reported of 3 incidents of ‘cloudburst’ induced flashflood causing severe damages in Bankura, Mansari and Sarson villages.
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DRP 040825: Arunachal Activists urge Centre to find dimensions of China’s Medog Dam
(Feature Image: Aerial view of the Yarlung Tsangpo’s Great Bend, Medog County)
Arunachal and other Himalayan states activists in a press conference in Delhi have rightly urged the Union Government to publicly demand from China all the features and dimensions of the Medog Dam on Yarlung Tsangpo river, their impact assessments and share the same promptly in public domain before even considering any project like the Siang Upper Multipurpose Project (SUMP). This is important since without knowing the features, dimensions, operating procedures and impact assessments, all the projections being made about the possible impacts of the projects are completely speculative and unfounded.
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Aug 2025: Rockslide at Vishnugad-Pipalkoti in Uttarakhand
(Feature Image: Rockslide at dam site of 444 Mw Vishnugad-Pipalkoti HEP on Aug 02, 2025)
At least 12 workers sustained injuries in a rockslide at the under construction Vsihnugad-Pipalkoti Hydro-Electric Power (VPHEP) project in Chamoli district of Uttarakhand. The 444 Mw (111X4) project is being built on Alaknanda River by the Tehri Hydro Development Corporation (THDC).
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Rivers Crossing the Highest Flood Levels in July 2025
(Feature Image: Hydrograph of Pin river at Gulling site in Lahul & Spiti on July 04, 2025)
In July 2025 during the South West Monsoon, we have found rivers crossing their respective Highest Flood Levels (HFL) at least at 12 flood monitoring sites of Central Water Commission (CWC). Of the 12 sites, 11 are in Ganga basin and 1 site is in Narmada basin. The details of all these sites are given in table below. The sixth column of the table is the information about rise in meter (m) over the old HFL, duration (hours-hrs) the river has stayed in extreme floods and number of years (yrs) after the HFL is breached. The 12 sites are spread over 5 states: Madhya Pradesh, Uttar Pradesh, Bihar, Uttarakhand and Jharkhand.
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DRP 280725: CWC Guidelines on GLOF should have mandated all information in public domain, independent assessment after every GLOF
Guidelines for Structural Measures to Mitigate Adverse Effects of GLOF on Dams Central Water Commission (CWC) on July 23 has issued new guidelines to safeguard dam infrastructure from risks and threat of flash floods triggered by glacial lake outburst floods (GLOFs). The information about this 40 paged documents named Guidelines for Structural Measures to Mitigate Adverse Effects of GLOF on Dams July 2025 was shared by CWC director Shiv Kumar Sharma, in a LinkedIn post. The document is available in PPT format and a pdf link for the same is still not available.
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DRP 210725: Moving Joshimath Landslide a threat to Tapovan Vishnugad HEP in UKD?
(Feature Image: Hydropower Tunnel project shown in the Joshimath area along with the Watershed Boundary. This figure is generated using ArcGIS software-version 10.3.1 and CorelDraw Graphics Suite 2019 https://www.coreldraw.com/. Source: Analyzing Joshimath’s sinking: causes, consequences, and future prospects with remote sensing techniques. May 2024)
A paper in scientific journal co-authored by Internationally renowned landslide expert Dave Petley (published on June 16 2025 at: https://doi.org/10.1016/j.enggeo.2025.108201) warns that the Joshimath landslide is moving and can threaten the under construction Tapovan Vishnugad hydropower project in Chamoli district in Uttarkhand. The paper says: “The 2023 rapid deformation at Joshimath was preceded by slow movement years ahead. Deforestation in the Joshimath region might have intensified the slope instability. Additional landslide zones were detected in Hailang, Kalpeshwar with similar pattern. Slow-moving landslides have high potential to cause often underestimated damages.”
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