Where to check live dam water storage levels and discharge data?

Real-time water levels, daily inflows, and reservoir discharge data for Mettur, Bhavanisagar, Vaigai, Pechiparai, and Chennai drinking water reservoirs are published daily.

Start online (fastest):

  • Visit the Water Resources Department portal (wrd.tn.gov.in).
  • Click on 'Daily Reservoir Bulletin' to view inflow (in cusecs), storage (in TMC / feet), and downstream irrigation discharge.

Flood safety warnings:

  • Whenever reservoirs reach Full Reservoir Level (FRL) and surplus water is vented, first, second, and final flood alerts are sounded through sirens and SMS alerts to low-lying riverside communities.
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