Research and analysis

Evaluation of risks associated with Environment Agency flood storage reservoirs

This reports on the use of the CIRIA method for Environment Agency flood storage reservoirs.


Evaluation of Risks Associated with Environment Agency Flood Storage Reservoirs

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email Please tell us what format you need. It will help us if you say what assistive technology you use.


This project is a pilot study into the use of the CIRIA methodology on flood storage reservoirs (FSRs). It involved the application of the CIRIA methodology to 5 FSRs of varying size and flood risk. The principal objective was to evaluate the application of the methodology to FSRs and determine any modifications needed to the methodology before it is used on all the En vironment Agency’s 109 reservoirs which come within the ambit of the Reservoirs Act 1975, and any further research required to develop the methodology for such use. The study also considered the identification of risk mitigation measures in the unlikely event of failure of a flood storage reservoir.

Published 1 May 2004