Last edited 28 May 2019



The Flood and Water Management Act 2010 defines a flood as ‘…any case where land not normally covered by water becomes covered by water.’

Causes of flooding include:

  • Heavy rainfall.
  • A river overflowing or its banks being breached.
  • A dam overflowing or being breached.
  • Tidal waters.
  • Groundwaters.

It does not include:

  • A flood from any part of a sewerage system, unless wholly or partly caused by an increase in the volume of rainwater (including snow and other precipitation) entering or otherwise affecting the system.
  • A flood caused by a burst water main (within the meaning given by section 219 of the Water Industry Act 1991).

Floods may have a harmful consequences on:

Articles about flooding on Designing Buildings Wiki include:

Designing Buildings Anywhere

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