Preliminary Flood Risk Assessment

What is a PRFA?

A Preliminary Flood Risk Assessment (PFRA) is an assessment of:

• floods that have taken place in the past
• floods that could take place in the future

It considers flooding from surface water runoff, groundwater and ordinary watercourses.

PFRAs are used to identify areas that are at risk of significant flooding. These areas are called flood risk areas. Lead local flood authorities (LLFAs), such as Suffolk County Council, are responsible for preparing PFRAs and identifying the flood risk areas for local sources of flood risk, in particular surface water, groundwater and small watercourses.

LLFAs also have a responsibility to update their PFRA every 6 years.

Suffolk's PFRA

Download Suffolk County Council's PFRA from 2011 (PDF, 1.8MB).

You can also view a subsequent update from December 2017 (PDF, 160KB).