As this report narrates, a great volunteer effort is underway in Mumbai to clean up Mithi river. What they have achieved is just about 350 m of clean river, after labouring over weekends for several months. But this is such a daunting task to even venture to start. They have not only started, but made visible progress. Let us hope it will achieve all its objectives.
The East and West Nayaar rivers[i] of Uttrakhand are small natural streams feeding the National River. They may meet the fate of Ganga and Yamuna, if the current trend damaging them remain unchecked. This pictorial report highlights the plight and beauty of East Nayaar river. The River is also spelt as NAYAR by a number of documents.
Degradation of Ganga river and its big tributaries gets adequate attention amongst concerned, while such small natural streams feeding the National River, largely remains absent in the mind and memory of stakeholders.
These perennial streams are making the River Ganga living and flowing in founding basin area. They seem healthy and living, however the problems of dumping of solid and liquid waste, construction debris, road cutting, water abstraction and hydro projects are rapidly catching up with the smaller streams.
Dams and reservoirs make rivers sediment-starved and menacing manifold downstream. While heavy rainfall is also a key factor behind the floods, hungry water had a more pronounced effect, says D. Padmalal, Scientist and Head, Hydrological process group, National Centre for Earth Science Studies.
– “When the sediment transport is interrupted, the potential energy of the hungry water released from dams will scour the river banks downstream, uprooting trees or riparian vegetation and damaging bridges and other engineering structures,” explains Dr. Padmalal. Overloaded with silt and clay from the eroding river banks, the highly turbid and viscous water clogs drainage channels. Subsequent discharge of water from the dam will lead to inundation and waterlogging of large areas.
– Hungry water can also develop in high gradient river channels devoid of adequate quantity of sand and gravel, especially during periods of high rainfall. “Years of uncontrolled sand mining have left most of the rivers in Kerala depleted or exhausted of sand and gravel. This creates a situation similar to the release of hungry water from dams,” notes Dr. Padmalal. When the river channel has adequate supply of sand and gravel, the potential energy of the water is used to transport the mixture. The water does not scour the banks or turn muddy.
BHAGIRATH PRAYAS SAMMAN 2016
All of them are working to ‘let the rivers flow’. The settings in which they work… their convictions and their understanding gives each of their work a unique flavour…
From colourful personality of Dinesh Mishra who has contributed single handedly to a gradually changing perception of flooding rivers as a catastrophe or “something to be tamed”…. to Himdhara’s deep love for mountains and urge to protect them…. to struggle of CCDD to save their rivers from grabs of corporate hydro-power sector in the armed conflict zone of Manipur…. SANDRP captures flavours of relentless efforts of recipients of Bhagirath Prayas Samman of 2016.
Beyond Barkot (first small urban town on Yamuna river) Yamuna Valley opens into Ranwai Ghati, inhabited by typical mountain community. Kharadi is one such place located 12 KM farther from Barkot on National Highway (NH) 123 in Uattarkashi district. The small marketplace but major ‘Char Dham’ pilgrim’s halting point 35 KM before the Yamnotri Shrine is divided into three parts (Upper, Middle and Lower Kharadi). Kharadi still cherishes much of the fast vanishing pristine charms and hardships of hill life. Notably, the word Kharadi itself is derived from ‘Kharad’ a traditional skill of harnessing kinetic energy of water to produce wooden products. Continue reading “Kharadi in Yamuna Basin: when Small Hydro unleashes big destruction”