(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” →
In this annual review, SANDRP compiles the hydro power related accidents, disasters and damages in North West and North East Himalayan states during 2022. It also covers relevant reports revealing gradual decline in power generation by hydro power projects amid growing concerns over physical and financial viabilities of new projects. There are also reports highlighting the looming climatic and geological threats over these projects. It is good to see that taking lessons from Chamoli disaster in Feb. 2021, NDMA has officially asked central govt not to rely on hydro power.
In previous parts of yearend roundups, we have covered (1) Dam induced floods & damages, (2) Fly ash dam breach incidents, (3) Impact of floods on Polavaram project, (4) People’s resistance against dams and hydro projects. Please see links for reports tracking hydro power projects related accidents and disasters in 2021 and 2020.
Continue reading “2022: Accidents & Damages related to Hydro projects in India” →
(Feature Image: No Means No Campaign message against hydro projects on a rock in Kinnaur. Source: ToI)
There have been many instances of opposition by local people, organizations and experts against unviable hydroelectric power (HEP) and destructive dam projects in 2022. Such instances of the resistance from across the country have been successful in a number of ways including leading to the funding agencies, corporate houses and government agreeing to withdraw from the project in many cases. This overview presents top ten stories highlighting successful opposition to hydro and dams projects in 2022 in India followed by some relevant reports on the issue. In first part of the annual overview, SANDRP has tracked the dam failures and dam induced floods incidents in India in 2022, along with separate report on unraveling of Polavaram project and another one on breaches of fly ash dams.
Continue reading “2022: People’s Resistance against Unviable HEPs, Destructive Dams” →
(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” →
This annual overview highlights the dam induced flood disasters, dam failure incidents in India during 2022. This year, the massive floods in Godavari have exposed the flood vulnerability of giant projects like Polavaram and Kaleshwaram. Also there have been multiple dam failures and dam induced floods in Madhya Pradesh, Tamil Nadu and Kerala. In absence of coordination and data sharing Hirakud induced floods in Mahanadi basin have affected several villages in Odisha and Chhattisgarh. There have been several instances of unscientific operations of dams and the operators continue to hide behind TINA (There Is No Alternative) excuse. The functioning of CWC as key flood forecasting and management agency has not shown any significant improvement. However, now it has accepted that faulty dam operations can lead to flood in downstream areas. Please see links to our 2018, 2019, 2020 and 2021 annual compilations on the subject.
Continue reading “Dam Floods, Failures and Disasters in 2022” →
(Feature Image: Pillar with flood level marked on the bank of Yamuna river at Old Railway Bridge level forecast site in Delhi. Source:- Sanchit Khanna/HT Photos)
During monsoon season, Centre Water Commission’s (CWC) carries flood monitoring and forecast work through a network of 332 stations[i] covering 20 major river basins. The stations are comprised of Level Forecast (LF), Level Monitoring (LM) and Inflow Forecast (IF) sites. The LF sites have Warning Level (WL), Danger Level (DL), Highest Flood Level (HFL), date of HFL information while LM sites maintain HFL and HFL date records. At IF sites flood level for respective dams/ barrages with inflow, out flow figures are measured and forecast is issued accordingly.
However, there are plenty of concerns plaguing CWC’s flood forecast and monitoring work across country for years. In this 2022 SW monsoon season, the agency has exhibited one more problematic tendency which exhibits not only its careless approach vis-a-vis keeping accurate information of HFL breach events, but it also seems strange that it realises it has giving wrong HFL level and date information mostly only after crossing the HFL now.
Continue reading “Monsoon 2022: CWC Changing HFLs in Ad-hock Manner“ →
(Feature image: Delta Land Loss Mechanisms. Source Wikimedia Commons)
A new study this week has reminded us what has been known for long. Dams not only store water but also trap the sediment flowing in the river. Whatever smaller quantity of water flow from dams to downstream areas, has much lower or no silt. A lot of that silt was supposed to reach the coast, helping fight against the erosion of the coast due to sea tides and waves. With drastically lower sediment reaching the coasts, higher coastal erosion is the result. While climate change is definitely contributing to the increased coast erosion due to more frequent and higher intensity storms from the sea, the role of dams tend to work as force multiplier in increasing the coastal erosion due to less sediment reaching the coasts from river.
While a new study by a Pune University has highlighted this phenomena in case of Godavari river, peninsular India’s biggest river, this is also happening at most other rivers and where they meet the coasts. As in case of Farakka, closer the terminal dam is to the coast, greater is its effectiveness to trap the river sediment and higher is its contribution likely to be to the increase in coastal erosion.
Continue reading “DRP NB 1 Aug 2022: Dams reduce sediment load in rivers leading to higher coastal erosion” →
This week brings heightened advocacy for major dams in the name of Urban Water supplies for cities that have no water policy, no worthwhile good water governance, but are happy demanding more and more water projects from further off places to cater to its unjustifiable demands. This is the underlying theme both in case of Renuka dam for Delhi and Mekedatu dam for Bangalore.
Some media reports are talking about need for additional storages, but in this advocacy there is no place for either efficient use of existing water storages, nor place for decentralised water storage options or underground water storage options, leave aside inclusion of soil moisture, which is a major storage option too.
Continue reading “DRP NB 17 Jan. 2022: Urban Water Mess visible in advocacy for Renuka and Mekedatu dams” →
Feature Image: Renuka Dam Sangharsh Samiti members take out a protest march at Dadahu in Sirmaur district on Dec. 19, 2021. Tribune photo
What will be the realistic cost of power from hydropower projects being pushed by the Prime Minister during this visit today to Himachal Pradesh? One indication of that comes from the 111 MW Sawra Kuddu HEP that he inaugurates during his visit. The cost of this project is already over Rs 2080 Crores, likely to go up further. Which means per MW installed capacity, the cost is around Rs 20 Crores. At this cost, the cost of power from the project is likely to be over Rs 8 per unit even without factoring in the social, environmental and increased disaster vulnerability costs that such projects impose on the fragile Himalayan Mountains. As if to also remind the active seismic zone, on the eve of his visit, there were tremors, even if mild, in Mandi.
The Renuka dam that he lays the foundation for does not even have all the statutory clearances. Its EIA has been the most dishonest exercise, as came out in the NGT hearings. What signal is the government sending by laying foundation stone for such a project? Similar are the issues with Luhri I and Dhaulasidh HEPs. The government seems to be pushing such outdated, unviable, costly and destructive projects in fragile Himalayan regions, purely on political arithmetic assumptions, but possibly need to realise that these projects are not even popular and they are also most inappropriate in the climate change context. Or is it the lure of spending such huge sums of unaccountable public money that provide opportunities for getting election funds for the party that is driving such undemocratic decisions?
Continue reading “DRP NB 27 Dec 2021: PM pushes unviable, destructive Hydro projects in HP” →