What is the management of floods?
Methods of flood management. Some methods of flood control have been practiced since ancient times. These methods include planting vegetation to retain extra water, terracing hillsides to slow flow downhill, and the construction of floodways (man-made channels to divert floodwater).
What is the reason for flood in Chennai?
And yet, Chennai floods. The first reason is Chennai’s long history of vanishing lakes and water bodies, captured by rampant and unfettered urbanisation. Only 15% of Chennai’s wetlands are left, according to a study by Chennai-based Care Earth Trust, a biodiversity research organisation.
What is the reason for Chennai flood 2015?
In 2015, the Chembarambakkam reservoir, which was full, was blamed for flooding the city, with officials mismanaging the release of waters. The sudden discharge of the water caused the Adyar River to breach its banks in a few areas, resulting in massive flooding.
What is the conclusion of flood?
Conclusion: Floods can be scary, but it is in the hands of human beings to ensure it doesn’t impact our daily life. Water storing areas such as ponds, lakes and other water reservoirs should be maintained. Floods can be avoided by improving the soil conditions thereby allowing easy water absorption.
How can we manage floods in India?
Floods can be controlled by redirecting excess water to purpose-built canals or floodways, which in turn divert the water to temporary holding ponds or other bodies of water where there is a lower risk or impact to flooding.
Why is flood management important?
Floodplain management: reducing flood risks and restoring healthy ecosystems. By retaining water, floodplains can buffer the effects of heavy rainfall and in this way protect economic activities and communities further downstream from flood damage.
Was Chennai floods a natural disaster?
Then, as now, the flooding in Chennai was described as a man-made disaster, despite occurring during a storm called Cyclone Nivar. Tamil Nadu has long been known for its susceptibility to a long list of natural disasters: cyclones, storm surges, coastal flooding, torrential rainfall, earthquakes and tsunamis.
What did the Chennai floods teach us about urban planning?
The Chennai floods have thrown up some fundamental flaws in our system of urban planning. Across India, city after city has experienced floods, while some others live with the fear of impending disasters.
What are the floods like in Chennai?
Chennai frequently experiences flooding due to heavy rain associated with depressions & cyclones. Of which few catastrophic floods during 1976, 1985, 1996, 1998, 2005, 2008 and 2010 caused heavy damages. Now-a-days, unexpected holidays due to heavy downpour are quite common especially during October – December.
How many storm drains are there in Chennai?
The National Institute of Disaster Management reports that in Chennai, 650 water bodies, which include lakes, ponds, and storage tanks, have been destroyed. Today, sadly, there are just 27 water bodies. The worst news is that the city has only 855 km of storm drains for the 2,847 km of roads.
What is the role of NDRF in the Chennai floods?
22 NDRF rescue teams had been deployed to Tamil Nadu and Puducherry. The Indian Army and Air Force had also deployed personnel and helicopters and have been conducting rescue and relief operations. The Chennai floods have thrown up some fundamental flaws in our system of urban planning.