Water Framework Directive Mitigation Measures Manual

Update of Mitigation Measures Manual

PLEASE NOTE: The Mitigation Measure Manual has now been udpated.  You can find a link to the updated version from our SC120019 project page

Welcome to the Water Framework Directive (WFD) Mitigation Measures Online Manual.

This manual aims to:

  • introduce mitigation measures for a wide range of flood risk management and land drainage activities.
  • give detailed information on the different measures.
  • explain how you can apply them in practical situations.
  • show where more detailed guidance is available.
More information on the background to the project can be found here.

How to use the Mitigation Measures Online Manual

This website can be used to access information on mitigation measures in two ways:

We have organised the mitigation measures under broad categories called ‘Measure Types’, e.g. under the Measure Type ‘Modify or enhance structure’ the measures ‘Structural modification of culverts’ and ‘Enhancing the ecological value of structures’ can be found.

Mitigation measures need to be appraised, designed and implemented on a case by case basis taking into account the type and function of the waterbody. Expert advice should be sought to identify the likely changes and impacts. As a key part of design, health and safety considerations should be taken into consideration. Specific notes on Health and Safety issues are presented in some of the measures pages.

What are Mitigation Measures?

Under the European Water Framework Directive, mitigation measures are defined as practicable steps that can be taken to mitigate adverse impact from human activities. In the case of flood risk management and land drainage these are impacts from physical modifications to our watercourses, coasts and estuaries.

When might Mitigation Measures be needed?

Measures have been set out which could be applied to mitigate changes occurring either from historic or proposed modifications.

  • Historic modifications: Water bodies designated as being Heavily Modified under the Water Framework Directive are those where changes to hydromorphology could be impacting on ecology. Measures to improve hydromorphological conditions in the water body have been identified in the River Basin Plans. Implementing these measures contributes towards achieving the ecological potential of the water body.
  • New modifications: New flood risk management or land drainage activities will result in changes to the hydromorphology. Without mitigation these activities could lead to a deterioration in ecological quality. Restoration from historic activities as part of new schemes or projects is possible, particularly when working with natural processes. Opportunities should be sought to mitigate for past and future impacts.

For more information on the Water Framework Directive and terms used, please click here.

Your Feedback

We are continually looking for ways to improve and update this website. If you have any ideas or suggestions about how it could be improved, or information on new or emerging guidance, please email us using the contact details below:

Contact: Rosie Blackmore (Project Executive). Email: rosie.blackmore@environment-agency.gov.uk

Contact: Dr Helen Dangerfield (Consultant Project Manager). Email: h.dangerfield@royalhaskoning.com

Website compiled and produced by Royal Haskoning