Tag: Fish

DRP NB 07×24: Global Dam Safety Challenge in Changing Climate
DRP News Bulletin

DRP NB 07×24: Global Dam Safety Challenge in Changing Climate

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(Feature Image: Water flows around the Rapidan Dam near Mankato, Minn., on June 24, 2024, after heavy rains in the Upper Midwest. AP Photo/Mark Vancleave)

It is increasingly clear that Large Dams across the world are facing increasing challenge due to climate change. In recent years, we have already seen serious dam disasters in Australia, Brazil, Canada, India, Kenya, Libya, Nepal, Nigeria, Poland, Spain, Sudan and USA to name just a few.

All these are related to extreme rainfall events, which are going to only increase in intensity, frequency and spread. It is interesting that hydro industry platform has come out with this report highlighting this issue this week.

For a country like India, the third large dam builder in the world, this challenge is going to be even more daunting as we have been seeing the increasing number of dams related disasters in last few years. As we remember the Teesta 3 dam disaster a year ago, the nature and dimension of this challenge becomes even starker. This is also exemplified by the fact that the dam safety panel report about this disaster is not even out in public domain. And even now new theories are being proposed about what happened during the disaster.

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DRP NB 300924: Focus on River Studies
DRP News Bulletin

DRP NB 300924: Focus on River Studies

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Rivers are the most important ecosystems (eco here includes ecology and economy) and yet possibly least studied entities. Some news below this week about some river studies brings the focus on need to take up many more river related studies.

Most important aspect of river related studies is the need for credible, independent studies, not influenced by the needs of the governments. Otherwise, the government is likely to not only influence the study, but also decide not to make it public as they did in case of the studies related to Joshimath town and role of Chamoli disaster.

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DRP NB 230924: Role of rivers in the birth of governments
DRP News Bulletin

DRP NB 230924: Role of rivers in the birth of governments

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(Feature Image Source: The Economic Origins of Govt)

Interesting research published in 2023 suggests that archaeologists and economists are now learning that dynamic, shifting rivers also created conditions that triggered people to develop some of the first organized govts on the planet.

In the research published in The American Economic Review Robert Allen and two co-authors found that Agriculture and large settlements emerged alongside rivers because they could tap into the gifts of rivers: close access to water and fertile soil. But rivers can move and take those gifts away. So, society developed organized govts to work collectively to regain their access to those gifts.

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Yamuna Manthan 050924: Changing parameters of Ken-Betwa Project needs fresh appraisal?
Ken Betwa Project

Yamuna Manthan 050924: Changing parameters of Ken-Betwa Project needs fresh appraisal?

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(Feature Image: Dry Ken river beneath bridge at Pandvan in Amanganj, Panna in April 2018. Image taken during Ken river walk by SANDRP & Veditum India)

The controversial Ken-Betwa Interlinking project is undergoing several changes being proposed by central and state governments of UP and MP. Firstly, there are plans to build two new barrages at Pailani and Banda and renovate Beriyapur and Pariksha weirs and Barua Sagar dam apart from renovation of 15 dams and large ponds in Mahoba district. Then, the construction of a 21 km link channel will require 271 ha of forest land.

Similarly, the CM of MP has requested to increase irrigation capacity of Patne-Biarma Irrigation Scheme from 90,100 ha to 2,50,000 ha under the interlinking plan. On the other hand, the CM of UP has suggested inclusion of Hamirpur district in the plan.

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DRP NB 020924: HYDRA to protect water bodies in Hyderabad – a landmark move?
DRP News Bulletin

DRP NB 020924: HYDRA to protect water bodies in Hyderabad – a landmark move?

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(Feature Image: An analysis of satellite imaging of 54 lakes taken in 1979 and 2023, secured by the HYDRAA from the NRSA shows that 40 lakes or nearly 75 per cent of lakes have shrunk by half. (Image: Twitter/DC)

The Hyderabad Disaster Response and Asset Monitoring and Protection Agency, or Hydra was established under GO 99, dated July 19 2024. A task the agency has taken up in all seriousness is protection of water bodies in the Hyderabad Capital Region (it includes 4 districts). To begin with it has started demolition of buildings illegally built inside the Full Tank Area (FTL) and Buffer area of the water bodies.

In July, Telangana Chief Minister Revanth Reddy replaced the Enforcement, Vigilance and Disaster Management (EVDM) wing of the government with Hydra, a body mandated to tackle illegal encroachment on water bodies in the Greater Hyderabad Municipal Corporation (GHMC) limits and surrounding areas. Its strength was upgraded from around 800 to 2,200 and its officials came directly under the principal secretary, municipal administration and urban development or the CM himself. “Hydra will also ensure the protection of water bodies in and around Hyderabad,” former EVDM commissioner and Hydra chief A V Ranganath said during its inception.

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DRP NB 260824: Urban flooding plan welcome, Urban Water Sector needs attention
DRP News Bulletin

DRP NB 260824: Urban flooding plan welcome, Urban Water Sector needs attention

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(Feature Image: Assam Floods: Commuters wade through a flooded road after incessant rains, in Guwahati, Friday, July 5, 2024. Image Source: PTI/ABP Live)

The Union Government plan to spend Rs 2517 Cr in 2 years in seven metro cities to mitigate floods is certainly welcome announcement. The key component of the plan, conservation and improving capacity of urban water bodies is noteworthy along with storm water drainage. Does it mean that the River Front Development projects that actually reduce the flood carrying capacity of the rivers will be closed, since one does not expect govt to be working at cross purposes in different schemes.

In fact, Urban Water Sector as a whole needs attention with National Urban Water Policy as a first step. This is because the groundwater aquifers that are fast being emptied out, can be least cost option for storing the excess rain water, serving the purpose of reducing storm water drainage load and also improving water conservation. There is huge scope for this in all the seven metros listed in the scheme as also in many other cities.

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DRP NB 120824: Chalakudy community demand Prudent Dam Management Plan
DRP News Bulletin

DRP NB 120824: Chalakudy community demand Prudent Dam Management Plan

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(Feature Image: Water flows through the gates of the Peringalkuthu dam on Chalakudy river after a sluice was opened following heavy rain in Thrissur on Aug. 04, 2022. Photo Credit: PTI/The Hindu)

One of the heartening development this week is from Kerala, where Chalakudy river community held a satyagraha to demand proper integrated dam management plan in the Chalakudy River basin to minimize flood risks. It is rather rare that communities come out for such a demand. It was also great to see that the satyagraha was supported by Chalakudy Puzha Samrakshan Samiti, Chalakudy municipal chairman and also environmentalists.

The satyagraha in fact had specific demand for each of the dams included in the Paramibikulam Aliyar Project, including in Kerala and upstream Tamil Nadu. We hope the Kerala government positively responds to these demands at the earliest.

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DRP NB 050824: Cities fail monsoon test
DRP News Bulletin

DRP NB 050824: Cities fail monsoon test

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(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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DRP NB 290724: Dam Floods need urgent attention
DRP News Bulletin

DRP NB 290724: Dam Floods need urgent attention

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

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

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(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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