DRP News Bulletin

DRP 170723: Man-Made Reasons That Make Flood A Disaster

(Feature Image: At Bhuntar, the Beas in spate claimed more than 20 shops, several houses and a major chunk of the road. PTI/The Tribune)

Over the past 10 days, several Himalayan and North Indian states including national capital Delhi have been battling severe flood disaster which has already taken a heavy toll of human lives apart from displacing people in large numbers and causing massive scale and still unfolding destruction to public-private infrastructure which is still unfolding.

While at macro level the impact of climate change induced excessive and abnormal rainfall patterns is seen as a major culprit but the micro level analysis reveals the deep connection of human activities behind the devastation on ground.

For example, in Himachal and Uttarakhand it is increasingly becoming clear that the large-scale construction and widening of improperly designed and poorly executed highways projects have started proving a double whammy for the fragile hills and river systems.

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Dam floods

Role of dams: 2021 Flood Management In MP’s Sindh River

Guest Article by: Aishani Goswami and Rahul Singh

Walking through Dhimarpura village, in Seondha block, Datia district, Madhya Pradesh, heaps of broken clay tiles, wooden logs and other construction materials could be seen. Temporary tent-like shelters made of plastic sheets were erected in place of the houses that fell due to the floods in River Sindh in 2021.

In this article we try and put together available information to understand the role played by the Madhikheda system of dams in worsening the flood disaster in Sindh River basin in first week of August 2021. It may be noted that whenever a dam proposed, one of the claimed benefits is that the dams can help moderate floods in the downstream area. This is indeed true, provided, the dam is operated with the objective. However, when the dam is not operated with that objective, then the dam can actually end up acting like a force multiplier for the flooded downstream areas. Let us see if Madhikheda dam played that role in August 2021.

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Dam Safety

2022: Growing Concerns over Dam Safety, Sustainability & Impacts

(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.

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Dam Disaster

2022 Fly ash dam breaches in India

(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.

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Dam floods

Dam Floods, Failures and Disasters in 2022

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.    

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Dams · floodplains · Floods

Broken Bandhans and mounds of muck: Consequences of unplanned Dredging in Vashishti River

In the leaning golden sun, 65 year old Hari Ganpat Nikam dived like dolphin under a wooden contraption in the Vashishti River. He emerged a whole minute later bearing a beautiful woven basket, his right hand placed firmly on its mouth. As he brought the basket closer, he gradually removed his hand. Inside, tens of small fish and crabs shimmered in the evening light.

Tonight’s fish curry was sorted.

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Dam floods

Madhya Pradesh: Collapse of Lateri Stop Dam in Vidisha

(Feature image: Flood water rushing through damaged portion of Lateri stop dam. Source: Hum Samvet)

Portion of a stop dam in Lateri Block of Vidisha district of Madhya Pradesh collapsed in morning hours of Monday, August 22, 2022 amidst heavy rains. The earthen dam is located at Islamnagar near Murvas in Lateri block of Vidisha district. The stop dam in Betwa basin is reportedly built a year ago by forest department. The reason behind the collapse is stated to be heavy rainfall.

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DRP News Bulletin

DRP 180722: Polavaram, Kaleshwaram projects damaged, Kadam dam overflowed

(Feature image: An aerial view of the flood-affected areas in Godavari districts on July 15. Photo by arrangement/Deccan Chronicle)

One of the noteworthy feature of the floods in ongoing on monsoon so far has been what is happening around large dam projects, particularly in Central India, Eastern India and Southern India. The Polavaram dam on Godavari river, the largest under construction dam in India, again suffered damage this monsoon as confessed by the Andhra Pradesh Irrigation Minister Ambati Rambabu after his frequent visits to the dam. The dam had suffered damage in 2019 floods and it is still not clear what is way forward and the dam has again suffered damage. This will make the unviable project even more unviable, but the government will continue to sink good money after the massive sunk funds.

The Kaleshwaram project in Godavari basin, the largest lift irrigation projects of India has also faced damages with at least two pump houses with large number of massive capacity pumps getting submerged, and third one partially flooded. The full impact of this damage will only be known after assessment once the floods recede.

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Floods

Rivers Breaching and flowing close to HFLs in May-June 2022

In pre-monsoon month of May 2022 and first month of south west monsoon season June 2022, there have been Highest Flood Level (HFL) breach incidents at 5 sites on rivers in North East and North India. The rivers have also touched or missed crossing the HFLs at 6 sites in the region in these two months. This include Kopili river at Kampur Level Forecast (LF) site in Nagaon district of Assam breaching HFL[i] in both  May and June 2022 months and Barak river at Fulertal LF site in Cachar district, Assam narrowly missing HFL breach in May 2022 and breaching the extreme flood level in June 2022.

SANDRP has been tracking the HFL breach incidents during pre-monsoon and monsoon months for past four years. The analysis of such HFL breaches in 2018[ii], 2019[iii] and 2020[iv], May-Sept 2021[v], Oct.-Nov 2021[vi] can be seen on our website.

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DRP News Bulletin

DRP 270622: There are many man made factors behind Assam Floods, Mr CM

(Feature Image:- DDMA, UNICEF and Oxfam have innovated boat-mounted water treatment units to provide life-saving water to the people in need within Silchar & its peripheral areas. Source:- Assam State Disaster Management Authority )

The Assam Chief Minister has called the unprecedented floods in Silchar town along Barak river in South Assam as man-made floods. The reason given is that the breach of embankment along the Barak river in the town was created by some people. It is good to see that the Assam CM Mr Himanta Biswa Sarma has recognised that some of the floods can be due to man made factors. And indeed, investigation followed by action is required in all such cases. But the CM should not limit this to just the breach of Barak embankment or the role of some of the people who may have breached the embankment earlier in May to provide outlet to one of the lakes. The investigation must also look into the role of the water resources department as to why they did not swing into action earlier, both in terms of repair and investigation. .

In fact, according to reports so far, no less than 297 embankments have breached during this monsoon so far already. Many or rather most of them have happened due to systematic neglect and lack of proper maintenance by the water resources department and needs proper investigation and action. There is also an urgent need for assessment of cost benefit and efficacy of the embankments in Assam.

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