(Feature image: Breach in Karam dam, MP in Aug. 2022. Dainik Jagran)
This annual overview is focused on issues concerning structural and operational safety of dams that arose in 2022. It includes issues related to how climatic threats and siltation is making the large dams unsustainable. It also highlights the impacts of dams on river eco-system and riverine people amid some corrective measures being taken by the various state and central governments including the formation of National Dam Safety Authority.
Please see for links to SANDRP’s analysis on the issues in 2022 in India covering: (1) Dam induced floods, (2) Dam safety and related issues of Polavaram project, (3) Disasters and accidents caused by hydro power projects in Himalayan states, (4) Growing and ongoing resistance against destructive dams and hydro projects, (5) Fly ash dam breaches.
Continue reading “2022: Growing Concerns over Dam Safety, Sustainability & Impacts”
(Feature Image: Flood water discharging from Polavaram Project to the downstream, in West Godavari district, on Jyly 12, 2022. The Hindu)
Polavaram is the largest and costliest big dam project under construction in India currently, though not much has been written about this projects and its impacts in mainstream in India. The project was given various clearances through a manipulated process, basic studies were not done before clearing it. Several petitions are pending before the various High Courts and the Supreme Court of India, but the project is allowed to go ahead without resolving them or the inter-state issues. A number of issues related to the project has been unravelling over the years and in 2022, the project further unraveled as the news reports compiled here reveal.
A snapshot of the status at Polavaram Project: The downstream coffer dam is damaged, the Gap 1 and Gap 2 of the Dam are yet to be constructed, the 1.7 km long Diaphragm wall of the ECRF dam is submerged in flood waters, it was earlier damaged (scoured at two places over an an area of 200 m X 200 m) in 2019 floods implying additional expenditure of Rs 600 cr, the water flow at the dam site on July 15, 2022 was highest since 1920 for July, the assessment of the earlier damage to the diaphragm wall and future options that was underway when the floods struck in the second week of July 2022, had to be stopped while still incomplete, the rehabilitation colonies have been submerged as the engineers assessment proved wrong about their elevation. There is an uncertainty on the structural stability of the other facilities of the irrigation project due to incomplete construction of the main dam, as it is receiving an unprecedented inflow. The height of the upper Coffer dam was increased by 1 m to 44 m between 17 and 19 July, 2022, in the middle of high floods, but that had impact on upstream Telangana and they opposed that this was done without consulting them.
Continue reading “2022: When Polavaram project further unraveled”
(Feature image:- This is the second time in the six months that Rautdih village has become inundated by the breach of ash pond embankment in Bokaro. ToI, Oct. 09, 2022)
Most mining companies make dams to store the semi solid slurry waste from the mines. Similarly most thermal power projects have fly ash dams to store the fly ash slurry. These dams store highly toxic slurries but there is little happening by way of regulation, monitoring or compliance at design, construction or operation level. Many of these dams breach or overflow, leading of release of the toxic slurry in the downstream areas. These dams do not even come under monitoring of Central Water Commission or under the dam safety act passed by the parliament. Despite accidents happening with huge adverse consequences, there is no accountability.
In this report, we have compiled the instances that we could locate about breaches of such dams in 2022. We earlier wrote about the Singrauli instance in April 2020 and in the 2019 SW Monsoon dam breach compilation report.
Continue reading “2022 Fly ash dam breaches in India”
Heavy water leakage has been detected from the Mahim-Kelwa dam at Zanjroli in Palghar district, Maharashtra causing danger to a few villages situated downstream, officials said on Saturday, Jan 8, 2022.[i] A massive three-metre breach was detected on Saturday morning in a 41-year-old earthen dam with a 3.34 Million Cubic Meters capacity at Zanzorli in Palghar.[ii] About 1200 litres per minute was being discharged downstream.
Continue reading “Mahim Kelwa Dam leakage in Maharashtra: Another case of negligence”
In another dam related disaster in Andhra Pradesh, a flood gate of K L Rao multi-purpose irrigation project also known as Pulichintala Dam was washed away on August 5, 2021 raising flood alarm in downstream areas along Krishna river. As per latest information the gate has been fixed and officials have started filling up the reservoir again. However, there is no official statement regarding exact causes, financial losses, damages to dam structure and downstream flood impact caused by the apparently avoidable dam disaster. The rule curve seems to be violated in operation of every dam and the gates do not seem to have been properly maintained. An independent enquiry needs to be immediately set up to find out what lessons we can learn and how we can fix accountability for the disaster.
Continue reading “Andhra Pradesh: Pulichintala Dam Gate disaster shows improper maintenance and operation”
(Feature image: Arial view of Bhimtal Lake and dam. Source:- Postoast.com)
All is not well with Bhimtal dam in Nainital district, Uttarakhand. On March 8, 2021 morning, the fillers from its protection wall wobbled out. It sparked panic among local residents living near the largest lake of Kumaon region. For past couple of years they have been concerned about the structural safety of the aging dam. The 138 years old dam has already been in news for vertical cracks and recurring seepages.
Continue reading “Uttarakhand: Aging Bhimtal Dam Raising Serious Safety Concerns”
Late on Friday (Oct 30 ,2020) night the gate no 31 of the Durgapur barrage suffered heavy damage, leading to emptying of the barrage and major disruption of the domestic, industrial and irrigation water supply. Shockingly, the Dam Safety aspects of the 65-year-old barrage on the border of Bankura-W Bardhaman districts of West Bengal[i] on Damodar river is under the World Bank and AIIB funded projects. This episode again[ii] puts a big question mark over credibility of the World Bank’s performance on dam safety issues in India, just a day after the Cabinet Committee on Economic Affairs headed by the Prime Minister cleared massive Rs 10211 Cr WB funded dam safety project[iii].
Continue reading “Durgapur Barrage on Damodar Damaged again: Its Dam Safety under World Bank-AIIB projects”
On March 14, 2019 the Spencer dam on Niobrara river, located south of Spencer in Nebraska state in USA breached, killing four people in the downstream. The Investigation Report about the disaster has been made public now on April 24, 2020. The remains of Spencer Dam — a skeleton of concrete and steel amid a sea of sand — became one of the iconic images of the March 2019 “bomb cyclone” flood that caused billions of dollars in damage across Nebraska.
Less than four months later, on July 2, 2019, Tiware dam breached[i] in Chiplun taluka of Ratnagiri district of Maharashtra, killing 23 people. The then Maharashtra Chief Minister Devendra Fadnavis on July 6, 2019 announced a Special Investigation Team (SIT) to probe into the disaster, the SIT was to submit a report in two months, but the report was submitted in January 2020, but the report is not in public domain. When SANDRP talked with the chairman of the committee, he disclosed that the report has been submitted to the department in early Feb 2020 and it can only be made public by the department once they accept the report. He revealed that the SIT had found that there were issues with material of construction (masonry in place of Concrete) and design of the conduit of the dam. He agreed that the report should be made public promptly, but expressed his helplessness in face of the norms in India. SANDRP also called Secretary, Department of Water Conservation, Govt of Maharashtra, but got no response.
There is a lot to learn for us in India in comparing the two dam breach incidents and how both are treated.
Continue reading “A tale of two dam breaches: Spencer (USA) and Tiware (India)”
Interrogating Cauvery Calling N Ram questions Jaggi Vasudev’s Cauvery Calling, asks why it shifts goal posts Speaking at Interrogating Cauvery Calling seminar in Chennai, N Ram said that various state governments and the central government that endorses the project should also be questioned.
“Now a very serious issue that must cause concern is the raising of public interest and public money for this project. Truly mega, in terms of money involved – 242 crore trees, 11,000 crore rupees. That is the kind of money involved. Only 0.5% collected. There is still time to put checks on this and prevent this from going further,” he said. “What is the management of this money? Who oversees it? There is no transparency, no verifiable document, no clear management structure for huge amount targeted. It is a matter of great concern.”
– N Ram also said that various state governments and the central government that endorses the project should also be questioned. “As a political journalist, this is the question that occurs to me. Who gave the Isha Foundation the right, the jurisdiction to transgress on what should be the commons. And why are governments being subservient to this idea? Apart from the risks, probable negative outcomes and over simplification of solutions for Cauvery, this is what is worrying,” he concluded. https://www.thenewsminute.com/article/n-ram-questions-jaggi-vasudevs-cauvery-calling-asks-why-it-shifts-goal-posts-112838 (24 Nov. 2019)
Continue reading “DRP NB 25 Nov. 2019: Cauvery is calling, but do we understand her message?”
The 275 MW Kopili Dam Power House of NEEPCO (North Eastern Electric Power Corporation Limited, a Union Ministry of Power Underaking) in Assam suffered major disaster on Oct 7, 2019. The penstock pipe that takes water from the Umrangso dam to the hydropower house burst during early hours in Assam’s Dima Hasao (earlier called North Cachar Hill) district, and massive quantity of water erupted, a lot of it entered the power house, where four employees of NEEPCO are feared to have been trapped/ washed away[i]. A large portion of the Kopili Hydro Electric Plant was also inundated and a temporary bridge was also washed away[ii]. Some videos of the situation are also available.[iii] Continue reading “Major disaster at Kopili Dam of NEEPCO in Assam in 2019”