Flood Time Machine — Chennai flood risk by address, 2005 to 2070

Flood Time Machine

Chennai · per-address flood risk · 2005 → 2070

offline · no internet needed

Risk score

0510

Each square is a 100 m cell. Colours are pre-computed risk, so the whole city is already scored before you click.

Exposed in Today

residents–

in ≥ 60 cm water–

buildings–

roads–

built-up wet– res · – com · – ind

critical sites–

hospitals · schools · police · fire · in ≥60 cm–

residents exposed

Years use different source datasets (2020: only 53 published hotspot points — sparse record), so comparisons are indicative, not exact.

Citywide, in this year's modelled water: ≥ 15 cm = affected, ≥ 60 cm = severe (waist-deep). Tap a year to re-count.