Dam Safety · Disasters

A tale of two dam breaches: Spencer (USA) and Tiware (India)

On March 14, 2019 the Spencer dam on Niobrara river, located south of Spencer in Nebraska state in USA breached, killing four people in the downstream. The Investigation Report about the disaster has been made public now on April 24, 2020. The remains of Spencer Dam — a skeleton of concrete and steel amid a sea of sand — became one of the iconic images of the March 2019 “bomb cyclone” flood that caused billions of dollars in damage across Nebraska.

Less than four months later, on July 2, 2019, Tiware dam breached[i] in Chiplun taluka of Ratnagiri district of Maharashtra, killing 23 people. The then Maharashtra Chief Minister Devendra Fadnavis on July 6, 2019 announced a Special Investigation Team (SIT) to probe into the disaster, the SIT was to submit a report in two months, but the report was submitted in January 2020, but the report is not in public domain. When SANDRP talked with the chairman of the committee, he disclosed that the report has been submitted to the department in early Feb 2020 and it can only be made public by the department once they accept the report. He revealed that the SIT had found that there were issues with material of construction (masonry in place of Concrete) and design of the conduit of the dam. He agreed that the report should be made public promptly, but expressed his helplessness in face of the norms in India. SANDRP also called Secretary, Department of Water Conservation, Govt of Maharashtra, but got no response.

There is a lot to learn for us in India in comparing the two dam breach incidents and how both are treated.

Continue reading “A tale of two dam breaches: Spencer (USA) and Tiware (India)”

Dams · DRP News Bulletin

DRP NB 27 April 2020: For whom is this unviable Etalin project being pushed?

In the ongoing debate on forest clearance for the controversial Etalin Hydropower project in Dibang Valley in Arunachal Pradesh between the Forest Advisory Committee, The Hindustan Times’s consistent reporting and Sanctuary magazine launching a campaign along with others, one (of the many) key question that remains unanswered is: for whom this economically (in addition to socially, environmentally and from climate change perspective) unviable, massively expensive project being pushed in a power surplus country?

Electricity from hydropower projects is no longer economically viable, since cheaper options are available. Some misguided people are claiming virtue in hydropower project claiming it provides peaking power. The fact is India is today not only power surplus, the peak power deficit has been just around 1% or less for long time. This when there is no attempt to either monitor as to how much of the electricity produced from existing hydropower projects provides peaking power, nor is there any attempt to achieve optimisation of operation of existing hydro projects to produce maximum possible hydropower. Nor is there any attempt to even manage the peaks either through pricing or other policy measures. In such a situation there is clearly no justification for more hydro for peaking. Moreover, the storage option is becoming increasingly cost effective, reducing the peaking power needs. So then for whom this project whose cost won’t be less than Rs 30000 crores at most conservative estimates, being pushed? The contractors, the equipment suppliers, the hydro lobby, the consultants, the timber lobby, the dam lobby, or the kickbacks?

Continue reading “DRP NB 27 April 2020: For whom is this unviable Etalin project being pushed?”