Exhibit 2: 2005 Mumbai flood and built environment changes
July 2005 flood event – impacted areas
Built up 2025
Built up 1975
Socio-economic overview:
- Mumbai is the financial capital of India accounting for approximately 6.1% of the country’s GDP.
- Home to around 13 million people, it is one of the densest megacities with around 28000 individuals
living per sq. km.
Flood risk profile:
- 90% of the city’s land surface is paved leaving little room for water seepage into the ground and
produces fast runoff. - Over last few decades, the city has expanded in suburban areas.
- Vulnerable to compounded risks of urban and coastal flooding, inadequate drainage and tidal backflows.
2005 flood event:
- Costliest event in India with 2,250 crore INR (USD 500 million) insured losses in 2005 prices and
over 1000 fatalities. - The July 2005 deluge was most severe, caused by 944 mm of rainfall in a day combined with high tides.
- A repeat of this event today would cost close to INR 20,000 crore (USD 2.3 billion) in terms of insured losses.
Source: Flood Risks, Climate Change Impacts and Adaptation Benefits in Mumbai (EN) Global Human Settlement – Download – European Commission, Global Human Settlement – Download – European Commission