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Sustainable Flood Risk
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Sustainable Flood Risk Management

River & Floodplain Restoration

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Natural Flood Management (NFM)

cbec applies the principles of NFM through all of our flood management projects. Natural Flood Management (NFM) is a sustainable approach to reducing flood risk by altering, restoration and using natural features to reduce flood heights/ peaks and attenuate flood waters upstream.

The two primary methods we are are:

1) Catchment-wide approaches and
2) Changing land-use to be more sustainable

cbec has used NFM methodology for several years and has been a leading proponent of implementing the catchment-based approach in Scotland, England and Wales.

cbec has substantial experience with assessment, design and implementation of flood risk management projects. In providing these services, cbec provides:

  • NFM plans that combine the needs of flood risk management, ecosystem enhancement, urban development and agriculture
  • Holistic and sustainable solutions tailored to each project
  • Alternative solutions to “hard engineering” using ecological engineering principles that also address NFM and Water Framework Directive requirements
  • Integrates hydraulics, hydrology, geomorphology, design and field services
  • Catchment models, allowing the client and stakeholders to identify the strongest locations for flood management work
  • Priority mapping with user-friendly GIS
  • Full stakeholder engagement and public consultation services
  • Conceptual and engineering designs


River Derwent, Yorkshire

Working with agricultural land managers, the Environment Agency and local district councils, cbec is developing a multi-objective management plan which balances the needs of agricultural land drainage, flood risk management and ecosystem enhancement.

Stream power calculation for the River Derwent Catchment in Yorkshire, England.

Land drainage ditches within the Vale of Pickering, Yorkshire, England

Eddleston Water Project, Scottish Borders

cbec conducted a geomorphic assessment of the Eddleston Water, Scottish Borders, in relation to the development of an ecologically-sensitive catchment management plan and flood alleviation scheme in the watershed. A continuous geomorphic survey (including a quantitative stream power assessment) of 13km of the river was conducted, identifying a number of potential reaches for restoration and floodplain inundation. Subsequent work involved the use of 1- and 2-D hydrodynamic models to guide specific AutoCAD-based restoration designs.

Two-dimensional Flood Modelling:

Existing Conditions, Q10 Event, Chapelhill

Designed Conditions, Q10 Event, Chapelhill

Existing Conditions, Q200 event, Cringletiee

Designed Conditions, Q200 event, Cringletiee

Holistic, multi-objective, sustainable...that’s how we think at cbec

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