DRP NB 290724: Dam Floods need urgent attention

July 29, 2024 SANDRPLeave a comment

(Feature Image: Officials said it was very important to identify a dry area for construction of the diaphragm wall and the earth-cum-rock-fill dam on top of it, this being the main dam of the Polavaram project. DC Image)

The floods last week in Pune, with significant contribution from dam releases from upstream has led to Maharashtra deputy Chief Minister Ajit Pawar directing the water resources department to keep the Khadkwasla Dam only half full to avoid repeat of the floods. While this is welcome and needs to be implemented, it also raises a number of questions.

The phenomena of water releases from dams contributing to downstream floods is not new, it has been going on for decades as SANDRP has been pointing out. Even in 2023 monsoon, several dams were found guilty of this including Sardar Sarovar on Narmada in Gujarat and Bhakra & Pong dams in Punjab (this was highlighted at a meeting in Chandigarh on Saturday by SANDRP and others), among others. In 2019 floods in Maharashtra and Karnataka too this happened in Krishna basin. So, the minister’s statement post disaster is surprising.

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Dam Induced Flood Disaster

July 2024: NMDC’s Iron Ore ‘Check-Dam’ Flood Disaster in Chhattisgarh

July 26, 2024 SANDRPLeave a comment

(Feature Image: Screenshot of NMDC’s ‘check-dam’ in flooded condition. Image Credit: NDTV MP/Chhattisgarh)

An iron ore check-dam of the National Mineral Development Corporation (NDMC) has breached and created flood disaster in downstream area of Kirandul town in Dantewada district of Chhattisgarh. The breach of earthen dam located between mines 11 B & 11 in eastern ridge of Bailadila range occurred around 3 pm on Jul 21, 2024 following heavy rainfall.

The subsequent deluge has affected several homes and vehicles in Bengali camp located downhill the dam in Kirandul town. There was chaos among the residents who fled to their safety seeing the flash flood. A six-year-old kid on his way to attend tuition class was washed away. The child was later rescued safely and hospitalized as per the Amar Ujala report.

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DRP News Bulletin

DRP NB 220724: Why are Under construction hydro and dam projects excluded from dam safety regime?

July 22, 2024July 22, 2024 SANDRPLeave a comment

(Flash flood ravaged HCC’s batching plant along Alaknanda river at under construction Vishnugad Pipalkoti HEP site in Chamoli district. Image source: Social Media)

As we saw in stories in last week (e.g., Luhri HEP in Himachal Pradesh) and see this week (Vishnugad Pipalkoti in Uttarakhand and Dibang HEP in Arunachal Pradesh), a number of under construction projects regularly face disaster, which includes deaths and destruction on large scale. We have been narrating stories related to disaster at such projects regularly in the past too.

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Hydro Disaster

July 2024: A Worker killed at Dibang Multipurpose Project in Arunachal Pradesh

July 21, 2024 SANDRPLeave a comment

(Feature Image: One dead in NHPC’s Dibang multipurpose worksite. Source: The Arunachal Times, X post July 17, 2024)

Months after work on Dibang Multipurpose Project (DMP) started, a worker has died in fatal accident at the project site which reportedly occurred at 03:00 am on July 16, 2024. The deceased is identified as Primal Udao a native of Cooch Bihar district of West Bengal. There is no confirmed information from the NHPC on the exact cause of his death.

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Hydro Disaster

July 2024: USDMA Clueless on Flashflood Disaster at Vishnugad Pipalkoti HEP

July 18, 2024July 19, 2024 SANDRPLeave a comment

(Feature Image: Screenshot of social media video showing flash flood imapct at HCC’s batching plant during intervening night of July 15-16, 2024.)

The batching plant at the controversial under construction Vishnugad Pipalkoti Hydro Electric Power (HEP) project site in Uttarakhand has suffered significant damages due to a flash flood incident during the intervening night of July 15-16, 2024. The plant belongs to the Hindustan Construction Company (HCC) and has been set up by the Alaknanda river downstream the dam of 444 Mw HEP project adjacent to it dumping yard at Gulabkoti in Helang area of Joshimath tehsil in Chamoli district.

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DRP News Bulletin

DRP NB 150724: Celebrating Monsoons

July 15, 2024 SANDRPLeave a comment

(Feature Image: People visit the seaside as dark clouds hover over the city, in Mumbai, Monday June 03. Image Credit: PTI/ Source: TNIE)

It is rather rare when we find anything in media about celebrating our monsoons. We find this week more than one piece about such celebration in various ways including through creating works like Bollywood songs and poetry in various languages of India.

In a detailed article famous Bollywood related author Jerry Pinto writes about the fascinating Bollywood songs related to monsoon and their picturization. He writes that the great tradition seems to be fading out, but hopefully that will not be the case. Incidentally the article should have mentioned the name of one of the best lyricist, author and film maker, Gulzar, who has shown more love for monsoon that possibly anyone else in Bollywood.

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Hydro Disaster

Himachal Pradesh: Damages at Luhri-I HEP Reveals Loopholes in Dam Safety Act

July 13, 2024July 14, 2024 SANDRPLeave a comment

(Feature Image: Screenshot of Local News India July 06, 2024 video report showing Luhri-I HEP tunnel outlet flooded after rise in Satluj water level.)

The controversial under construction Luhri Hydroelectric Project (HEP) Stage-I is being developed by Sutlej Jal Vidyut Nigam Limited (SJVNL) on Sutlej river near village Nirath village in Shimla and Kullu districts of Himachal Pradesh. The 210 MW HEP involves construction of an 80 m high concrete gravity dam with six bay gated spillways, a 567 m long horse shoe shaped diversion tunnel, two coffer dams, a surface power house, intake structure and penstocks among other parts.

The project would require 149.07 ha land including of 98.10 ha forest land and 50.97 ha private land. The project dam would create 6 km long reservoir area submerging 100.23 ha of land comprising of 63.52 ha of forest and 36.7 ha of private land. 39.47 ha of the submergence area is riverbed land.

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DRP News Bulletin

DRP NB 080724: Why IMD & CWC are unable to improve forecasts, reporting & help improve flood management?

July 8, 2024July 8, 2024 SANDRPLeave a comment

(Feature Image: Flood-affected people move to a safer place on a boat in Nalbari district on Friday, July 5, 2024. Image Credit: PTI/Source HT)

We are in the thick of monsoon and also flood season. To manage floods, key inputs are accurate forecasts and prompt, accurate, location, river specific rainfall. India Meteorological department has a key role to play in all these aspects that can help us manage floods, as a very pointed Editorial in Indian Express stated in the context of Assam Chief Minister Himanta Biswa Sarma’s flip flops.

The edit referred to the 2021 parliamentary panel report that asked the Centre to set up modern weather stations in the upstream catchment of the Northeast’s rivers and install sirens to alert people downstream of floods. North East and rest of the country continues to lack such systems.

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Rainfall

June 2024: High Rainfall district days in India’s SW Monsoon Lowest in four years

July 5, 2024July 5, 2024 SANDRPLeave a comment

An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for the month of June 2024, the first month of India’s South West Monsoon 2024 shows that there were 384 instances (451 in June 2023 [i], 462 in June 2022 [ii] and 442 in June 2021) when district rainfall of a day was above 50 mm. This, like the monthly rainfall for June, is the lowest figure for June for the last four years. The rainfall of India in June 2024 was 147.2 mm [iii], the rainfall in June 2023 was 148.6 mm, the rainfall of India in June 2022 was 152.3 mm [iv]. The data and analysis are based on IMD’s daily district wise rainfall bulletins for the 24 hours ending at 0830 am each day.

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Yamuna River

Yamuna Manthan 040724: A year after historic floods, where is River Governance?

July 4, 2024 SANDRPLeave a comment

(Feature Image: A view of overflowing Yamuna river at Wazirabad in New Delhi on 13 July. Image Credit: HT PRINT/Live Mint)

It has been a year since Delhi witnessed one of the worst flood spells in Yamuna after four and half decade. The unusual deluge in river on July13, 2023 breached the highest flood level (HFL) 207.49 meter at Old Delhi Railway Station (DRS) attained on September 6,1978 by 1.17 m margin and set 208.66 m as new HFL.

Apart from severely impacting thousands of people in the city, the July 2023 Yamuna flood caught the concerned govt agencies responsible for flood mitigation by surprise and exposed the way city planners particularly DDA, NHAI have been dealing with river floodplains.

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