An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for July 2024 shows that there were 914 (up from 855 in July 2023, 809 in July 2022 and 717 in July 2021) instances when district rainfall of a day was above 50 mm. Such high rainfall instances included 730 (up from 660 in July 2023, 663 in July 2022, 595 in July 2021) instances when rainfall was 50-100 mm, 143 (149 in July 2023, 107 in July 2022, 98 in July 2021) instances when it was 100-150 mm, 27 (34 in July 2023, 28 in July 2022, 17 in July 2021) times it was 150-200 mm and 14 (12 in July 2023, 16 in July 2022 and 7 in July 2021) times above when rainfall in July 2024 when rainfall was above 200 mm. As noted in earlier article[i], the July 2024 rainfall all over India was 9.3% above normal.
Continue reading “High Rainfall days in India’s districts in July 2024”Author: SANDRP
Tungabhadra Dam: A Crest Gate washed away in August 2024
In a major dam related disaster at around 10.50 pm on Aug 10, 2024[i], one of the crest gates at the Tungabhadra dam has broken[ii] near Hospete in Vijayanagara district in Karnataka, causing the release of 70,000 to 100,000 cusecs of stored water. The chain on the 19th (of total 33 gates) gate of Tungabhadra dam on Tungabhadra river, part of Krishna River Basin, got cut, snapped and was washed away about 100 m from the dam on Saturday. The chain that was used to operate the gate snapped as the welding gave way. The Tungabhadra gates only have chain and not chain and rope as in some other dams. The force of the water in the dam swept the 60-foot-by-20-foot gate, weighing around 20 tonnes, some 500 ft away, J Purushottham, president of the Tungabhadra Farmers’Association, said. This possibly happened due to heavy flows, but also due to wear and tear of over 70 years of operation of the dam. A temporary stop log gate is now being planned, as permanent crest gate will take time.
The disaster raises a number of questions about the operation and maintenance of the dam.
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Yamuna Manthan 080824: Welcome Judicial Decisions for River Floodplain
(Feature Image: Yamuna floodplain downstream old railway bridge Delhi. March 2024, SANDRP)
In the past one month there have been some interesting judicial interventions taking up the matters of floodplain, pollution and aquatic eco-system of the Yamuna River in Uttar Pradesh, Delhi, Haryana and Himachal Pradesh. Of these, the most significant one is the NGT order on July 11 fining MoJS & CWC of ₹50 000 each for the non-demarcation of floodplain in Agra.
The fine was to be submitted before Aug. 06,2024 hearing but there is no update available so far on this. It is also not clear whether Yamuna floodplain has been demarcated and officially notified in Agra stretch or not. Earlier in May 2019 and March 2022, the NGT had asked for demarcation of Yamuna floodplain in Agra and Mathura respectively.
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June July 2024: District wise rainfall in India’s SW Monsoon
In the month of July 2024, the second month of India’s South West 2024 monsoon, India received 306.6 mm (318.4 in July 2023[i] and 327.7 mm in July 2022[ii]) rainfall, 9.3 % above (13.5% above normal in July 2023 and 16.8% above normal in July 2022) the normal July rainfall of 280.5 mm as per India Meteorological department. So this is the third consecutive year when rainfall in July is above normal. In July 2021, the rainfall was 266.1 mm[iii], about 6.7% below normal and in July 2020, the rainfall was 257.1 mm[iv], or about 9.9% below normal.
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Clueless about fish passes: CIFRI’s Review of fish pass research in India
Central Inland Fisheries Research Institute (CIFRI) is a premier institute under the Indian Council for Agricultural Research (ICAR) of the Ministry of Agriculture and Farmer’s Welfare, Government of India. It is one of the only government institutes researching the status of inland fisheries and recommending steps to improve fisheries and well-being of dependent population. Founded in 1947, an expert from CIFRI sits on the Expert Appraisal Committee, (EAC) on River Valley Projects of the Ministry of Environment, Forests and Climate Change (MoEF and CC), recommending environmental clearances to dam projects across the country. This expert is supposed to look at impacts on fish diversity, fisheries and dependent population and judge whether the project is feasible or not based on its impact and possible mitigation measures.
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DRP 050824: Cities fail monsoon test
(Feature Image by Cartoonist Alok/ Sakal, July 25, 2024)
This monsoon has again shown how our cities have been failing the monsoon test for decades. As rightly suggested in the Indian Express Edit this week, main reasons are: outdated drainage systems, planning that is blind to local hydrology and pathetic state of civic agencies. The last factor in fact needs to change to failed governance at all levels. There is no water or flood policy that guides our cities, nor is there any reward for improving governance, nor any penalties for lack of it.
In fact, with better rainwater management, cities can convert this problem into a blessing, both in terms of water security and also improved state of urban landscape. This would be possible if it prioritizes the city’s capacity to hold, store, recharge and drain the rainwater. Instead, the cities are busying destroying such capacities by destroying the rivers, ridges, forests, local water bodies, groundwater recharge capacities and also the drainage capacity.
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July 2024: ‘Cloudburst’ in Beas Basin Damages 2 HEPs in Himachal Pradesh
(Feature Image: Flashflood ravaged 9 Mw Beas Kund HEP Powerhouse complex. Image Source: News on Air)
The cloudburst induced flashflood destruction took place late on July 25, 2024 in Palchan area of Manali tehsil in Kullu district. Many of the media reports have also mentioned about the deluge damaging a hydroelectric power (HEP) project in Palchan just in a single line without revealing any details or even the name of the HEP.
While looking for more information about the affected HEP, we came to know that not just one but two HEPs have faced significant damages due to the flashflood incident. Both projects are owned and run by private companies in upper Beas River basin.
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DRP 290724: Dam Floods need urgent attention
(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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July 2024: NMDC’s Iron Ore ‘Check-Dam’ Flood Disaster in Chhattisgarh
(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 220724: Why are Under construction hydro and dam projects excluded from dam safety regime?
(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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SANDRP 