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.
Around same time, there were more incidents of damages to dams and dam induced flooding in Kadapa, Chittoor, Anantapur districts of Rayalaseema and adjoining Nellore district. Firstly, the collapse of Pincha project ring bund contributed to Annamayya flood disaster. Then, one of metal bund of Mylavaram project was washed away.
Fourthly, the sudden releases from Veligallu and Buggavanka dams in Kadapa and Kalyani dam in Tirupati resulted in flash flood destruction in downstream areas. Apart from this, the leakages in Rayalacheruvu tank bund in Chittoor district could have turned into a big disaster.
The October 2021 flood disasters in two ends of India, in Kerala and Uttarakhand have a lot common. Both happened after the end of normal dates of South West Monsoon 2021. In both cases it is repeat of earlier such disasters in respective states. In both cases, there were reports by expert reports warning about the disasters. In both cases the rainfall events were broadly along the lines warned by the climate scientists, but in both cases the state was ill prepared to cope with it. In both cases, inappropriate human interventions have worsened the disasters in major ways. And in both cases disaster management seems to be absent from ground. In both cases, more precise forecasts about the rainfall quantum and location would have helped. (Feature Image above is from The Hindustan Times, Oct 23, 2021)
Abstract: While Uttarakhand is vulnerable to disasters, climate change is increasing these vulnerabilities. Major human interventions like hydropower projects and highways implemented without an informed or democratic decision-making process act as force multipliers during such disasters. The violations of legal and other prudent norms in their implementation further increase the damages. The absence of necessary monitoring, early warning systems and the overall disaster management system add another layer of damages during the disasters. The lack of the ability to learn lessons from disasters and lack of any accountability ensures the perpetuation of the situation.
Given below if the text of the presentation made by SANDRP coordinator on Day 1 at the FICCI-NIDM (NIDM: National Institute of Disaster Management; FICCI: Federation of Indian Chambers of Commerce and Industry) 3-day training program on Feb 18-20, 2021 on “Resilient Infrastructure in Hilly Areas: Avalanche, GLOF & Debris Flow” in the context of the Chamoli Disaster of Feb 7, 2021.
There can be no dispute over the fact that the frequency, intensity and spread (new cities getting affected) of urban floods is increasing in India. The reasons are mostly known: increasing and mostly unplanned urbanisation, rural-urban migration, encroachments of water bodies, concretization of flood plains and other lands, decreasing capacity to hold, store, recharge and drain the rainwater, increasing rainfall intensities with changing climate, wrong operation of big dams and deteriorating governance.
Improper operations of dams, disasters related to dams and hydro projects and breaching of embankments have been aggravating flood disasters during every monsoon. There have been several such incidents during South West Monsoon 2020, taking heavy toll on people and property which could have been avoided or impacts reduced in many cases with proper dam operations and proper maintenance of the embankments. This compilation attempts to put together all such instances when avoidable flood disasters were created by improper operation of dams and breaching of embankments in the south west monsoon 2020.
In the most significant event so far on the issue of landslide blockage of Phutkal River in Zanskar Valley in Kargil District in Kashmir, the National Crisis Management Committee (NCMC) chaired by the Union Cabinet Secretary Shri Ajit Seth met on Feb 20, 2015 and approved the Action Plan whose implementation will begin within next 15 days and is to be completed by end of March. This decision is based on assumption that the snowmelt will cause landslide dam threatening situation only in April.
Feb 13, 2015: The picturesque Zanskar Valley in Jammu and Kashmir State in Northern India continues to remain under threat as one of the tributaries of the Zanskar River has been blocked by a massive 200 ft high landslide dam (equal to height of a 20 storey building). The landslide dam between Shaday Sumdo and Mar Shun in the Zanskar subdivision of Kargil district has created about 14 km long lake, whose size is increasing with every passing day. Life and properties of around 4000 people are at risk due to the possible flashfloods when the landslide dam breaches. Continue reading “Landslide Dam blocks Phutkal River, threatens Zanskar Valley: Update”→