Urban Flooding in Chennai: Future Situation without Mitigation Measures vs Current Situation

  • City: Chennai, India
  • Inundation modeling area: The Adyar river basin, with an area of 65 km2 inside Chennai Municipal Corporation
  • Without mitigation measures, an increase of 6% was observed in areas with flood depths greater than 0.5 m.
  • The adoption of flood control scenario characterized by river flow capacity improvement and improved upstream diversion/storage revealed that a significant decrease of inundated areas with about 40%.

Flood hazard legend