Flood investigations

Wigan preliminary flood risk assessment (PFRA)

One of our statutory obligations, under the Flood Risk Regulations 2009, is to undertake a preliminary flood risk assessment (PFRA).

The purpose of the PFRA is to assess surface water flooding from information gathered through a data collection exercise on past and future flooding.

The assessment identifies any flood risk areas of national and local significance.

We completed our first preliminary flood risk assessment in 2011, with additional information published in 2017.

Section 19 flood investigations

As a Lead Local Flood Authority (LLFA), one of our duties under the Flood and Water Management Act 2010 is to investigate significant flood events and make our findings public.

In line with policy, we define a significant flood as one where either 5 or more residential buildings or 2 or more commercial properties were affected.

See our completed flood investigation reports:

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