Traditionally, our river management strategies are mainly focused on the water flows, including flood management, and these have resulted in various interventions such as dams, barrages, canals and embankments. Most of these interventions have had very little consideration for sediment transfer and even if they did, they were generally defunct within a few years of their operations either due to improper design or inadequate maintenance.
A long-term sediment management strategy has never been a part of any protocol of river management, not just in India, but in several other parts of the world. It is amply clear that sediment management must form an important component of management strategies for the Himalayan rivers. The Union Water Ministry has recently circulated a draft policy on sediment management.
Continue reading “DRP News Bulletin 13 August 2018: Existing Sediment Management Draft Policy Promoting Navigation & Not Rivers’ Health”
(The figure above is screen shot of CWC Flood forecasting site showing no warning signs even at 5 pm on 230718)
Almost all the big dams in Cauvery Basin are full on the earlier ever monsoon date this year. This includes Krishnaraj Sagar, Mettur, Kabini, Harangi, Hemavathi and Bhavanisagar. They are almost full and have started releasing large flows to the downstream areas. This is when we are past just about six weeks of South West Monsoon, the North East monsoon would come after that. It means that the basin is facing major risk of floods in next 2-5 months. And yet Central Water Commission, India’s flood forecasting agency, seems to be in deep slumber. It has not even bothered to update the flood readings on its designated sites from the 2017 figures. Continue reading “Cauvery is facing very serious flood risk, but CWC is in slumber”
Above Map of Cauvery basin from Indian Express, Sept 22, 2016
Higher demands than availability is the key problem in Cauvery basin. transparent, participatory, democratic, rule based management of demands over supply is the key need. Unfortunately, we do not have that. Greater misfortune is that the Cauvery Water Disputes Tribunal Award of Feb 2007, even as it is significantly flawed, is yet to be implemented since the Special Leave Petitions of Karnataka and Tamil Nadu, admitted in the Supreme Court, remain pending for over nine years now. The Supreme Court, in the meantime, (through its orders of Sept 5, 12 and 20) deals with the issue in a manner, that seems ad hoc in absence of clarity as to how all the relevant factors have been taken into account. Continue reading “Cauvery: Is there will for way forward? Will constitution of CMB help?”