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Resource centre on India's rural distress
 
 

Why does Chennai get flooded even after a single spell? -Vignesh Radhakrishnan and Raj Bhagat Palanichamy

-The Hindu

From urbanisation to missing links of stormwater drains, the maps tell it all.

Every rainy season, Chennai is flooded. Some of its streets get inundated even after a single spell. The maps show that as the need for residential units grew, houses were built in low-lying areas and floodplains, leading to stagnation. The loss of a portion of the Pallikaranai marshland added to the crisis. Moreover, many missing links of stormwater drains, even along major roads, led to frequent stagnation.

Flat terrain

Chennai lies in a relatively flatter terrain and is close to sea level in most places. Some localities are in relatively low-lying areas, so the water doesn't get drained quickly, leading to flooded streets

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