Dams · DRP News Bulletin

DRP News Bulletin 3 Sept 2018: CHINA HAS STARTED DECOMMISSIONING DAMS

In a mountain village in southwest China’s Sichuan province, authorities have demolished seven small dam projects this year along a river to clear illegal developments in a new nature reserve. The demolition is part of a nationwide programme to close hundreds of tiny and often ramshackle dams and turbines and bring order to China’s massive hydropower sector after years of unconstrained construction.

The dams sat on an unnamed tributary of the fierce and flood-prone Dadu river, which feeds into the Yangtze, Asia’s largest and longest river, where the government says the “irregular development” of thousands of small hydropower projects has wrecked the ecology. But green groups say the campaign will not necessarily save the environment because it will not affect big state hydropower stations, which they say have caused the most damage.

On the 48 km Zhougong, authorities have already demolished small projects built in nature reserves or encroaching upon new “ecological red lines” drawn up to shield a quarter of China’s territory from development.

The government says small dams have disrupted the habitats and breeding patterns of many rare species of fish, although green groups argue the damage wrought by bigger dams is more severe, with entire towns and ecosystems submerged in water, which they say increases the risk of earthquakes, landslides and even climate change.

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Dams · Floods

Overview of CWC Flood Forecasting Sites 2018: East India 

Central Water Commission is the only agency doing flood forecasting in India. As per CWC’s Flood Forecasting website[I] the Data Flow Map has information about 226 Flood Forecast Sites in the country comprising of 166 Level Forecast Sites and 60 Inflow Forecast Sites. It also monitors 700 Flood sites, information made available through List Based Exploration and Hydrograph View, but no flood forecasting is done for these sites.

In order to better understand the CWC’s flood monitoring and forecasting work, in this article we have given an overview of CWC’s flood forecasting and monitoring sites in East India. It includes state wise list of CWC’s Level Forecast, Inflow Forecast and level monitoring sites in East India. Similar report has been published for North India[II] and North East India[III] and we hope to publish reports covering other regions of India too. 

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Dams

East India Rivers Review 2017

The seventh report reviewing status of India’s rivers in 2017, focuses on Rivers in West Bengal, Odisha, Bihar, Jharkhand and Chhattisgarh. This review does not include main Ganga river as there is separate Review of state of Ganga River.

West Bengal Rivers

Rivers pollution worse than in 2014 According to the latest State of Environment Report, it has been found that in the 17 major rivers of the state, including the Ganga, the levels of coliform bacteria are much higher than the permissible limit. The report further revealed that several stretches of the Ganga had a total coliform count ranging from one to four lakhs, making the water totally unfit for even bathing. The report has also stated that compared to 2014, all the four main rivers of north Bengal recorded a significant increase in total coliform count. http://www.thehindu.com/todays-paper/tp-national/bengals-rivers-in-a-bad-shape/article22459562.ece (The Hindu, 18 Jan. 2018)

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Dams

Jharkhand Rivers Profile

About Jharkhand 

Jharkhand State stands on a hilly undulating plateau characterized by predominantly tropical forests and tribal settlements. The total geographical area of the State is 79.70 lakh hectares. The state falls under the Tropical Monsoon climatic region. Presently there are 24 districts in Jharkhand. The population of the State is 32.96 million.

Marvelous eye catching rare geological/geomorphological features like rejuvenated meandering and deep cutting young rivers like Damodar are the uniqueness in the State. It is rate because of combination of senility with the character of young rivers. The state has the luxuriant forests and lush green rolling seasonal meadows. Magnificent undulating hills and valleys are the special attraction. The golden river ‘Swarnarekha’ adds melody in the pristine environment along the course. A combination of table-top flat lands and the peneplain with dome shaped exfoliating hillocks resembling like inverted Nagara (drum) are spread over the state. Further, the Tors or the balanced diamond shaped rocks are also present wonderful nature of the state.

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