An independent review of the floods of summer 2007 calls for the public to be given more information about the dangers of severe flooding, if dams are breached.

Firefighters were involved in a major operation to pump water out of Ulley Reservoir in South Yorkshire when it came close to breaching during the heavy rain.

As part of an EU funded study into dam vulnerability, scientists breached a dam in Norway to observe the results.

This speeded up footage shows how the dam is broken down within an hour.

Footage: OUTBREAK Project/ HR Wallingford