Developing a new hazard classification for Reservoir Safety

FD2739 was commissioned to develop and test a new hazard classification system and safety management framework for reservoirs in England and Wales, drawing on best practice from other high-risk industries.

From:
Flood and Coastal Erosion Risk Management Research and Development Programme and Department for Environment, Food & Rural Affairs
Published
28 January 2026
Category:
Policy, governance and funding
Topics:
Communicating risk and Reservoirs
Project status:
Completed
Project code:
FD2739
Date of start:
19 June 2023
Date of completion:
21 March 2021

Documents

The final reports, methodology documents, and technical note can be downloaded from Defra Science Search.

Details

The aim of the project is to develop, analyse, and test a range of practical options for a new hazard classification system. This includes scoping how each option would affect reservoir safety management practice by reservoir owners and operators (undertakers), reservoir panel engineers, and the Enforcement Authorities (the Environment Agency and Natural Resources Wales). This project provides proposals for an overarching framework for a new hazard classification and safety management system. Further details on how this will be implemented, along with other aspects of Professor Balmforth’s Independent Review, is being considered as part of the wider Reservoir Safety Reform Programme.

Summary

This project followed a staged, task-based methodology. Each phase built on prior evidence, progressing from a comprehensive review and development of options to a proposed operating model:

  • practical options were analysed and tested, with impacts assessed for reservoir undertakers, panel engineers, and regulators (Environment Agency and NRW).

  • stakeholder engagement underpinned the work, with input gathered through workshops, a Project Board, and a High-Level Engagement Group. Proposals were refined through regular feedback and industry presentations.

  • the preferred option was supported by evidence for a regulatory impact assessment, covering costs and benefits.

  • independent peer reviewers found the outputs robust, well-structured, and suitable to support regulatory reform.

  • future research needs were also identified to further strengthen reservoir safety in the UK.

Project information

The research was conducted by JBA Consulting.

The project was funded by Defra, as part of the joint Flood and Coastal Erosion Risk Management Research and Development Programme.

Updates to this page

Published 28 January 2026
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