As a Lead Local Flood Authority (LLFA) we have a duty under the Flood and Water Management Act 2010 to investigate flood events that occur within the city boundary.

Section 19 of the Flood and Water Management Act (2010) states that, on becoming aware of a flood in its area, a lead local flood authority must, to the extent that it considers it necessary or appropriate, investigate which risk management authorities have relevant flood risk management functions and, whether each of those risk management authorities has exercised, or is proposing to exercise, those functions in response to the flood.

Upon learning of a flood event within Southampton, the Investigating Officer will follow the established Flood Investigations Protocol whereby it will be determined whether an investigation should be carried out using the Flood Investigations Guidance, taking into account the available resources and significance of the event.       

It is not the responsibility of the Investigating Officer to resolve the flooding issue or provide solutions; however they will investigate the cause and notify any relevant authority and those affected.

Should there be significant widespread flooding in the city, or where a number of indicants meet the threshold for investigation, investigations will be undertaken on a priority basis.

Where an investigation has been carried out, a flood investigation report will be produced and will be made available on this webpage shortly after the investigation is completed. This is a statutory requirement of the Flood and Water Management Act 2010.

Private landowners also have responsibilities in relation to land drainage and riparian ownership. For more information on the rights and responsibilities of riparian land ownership, please see the Environment Agency website

See also:
Riparian Land Ownership

Document Type Size
Flood Investigations Protocolpdf30KB
Flood Investigations Guidancepdf26KB
Flood Investigation report – Daisy Dip (June 2012)pdf3MB
Flood investigation report – Daisy Dip (Dec 2011)pdf6MB