Risk-based Drainage Regime

Risk-based Drainage Regime


Undertaking a risk-based approach towards maintenance on gully and soakaway assets was Brighton & Hove City Council’s priority. The aim being to ensure existing flood risks are better managed and mitigated where possible.


  • Work with Council officers to understand the thinking behind the current maintenance strategy and to analyse silt level data.
  • Utilise our unique Regenerate—Scheme Prioritisation tool to ensure each road in the city is tempered by political and social drivers to prioritise location factors that will effect local flooding.
  • Assign maintenance frequencies based on silt level data, location and risk assessment to mitigate the risk of flooding.
  • Analyse funding implications based on the level of risk the Council is willing to take.


Through this project, Brighton & Hove City Council has:

  • Enabled the adoption of cyclic maintenance regimes for gully and soakaway assets that support a proactive asset management approach and manages risk of flooding.
  • Developed a drainage resilient network that supports the recommendations set in the DfT Transport Resilience Review, 2014 and the UKRLG Well-Managed Highway Infrastructure Code of Practice, 2016.
  • Generated robust evidence to support their business case for additional maintenance funding for drainage assets.

Click to open a PDF version of this case study.

Luke Meechan
T: 020 8948 0249
Maggie Moran
Flood Engineer


  • Client Brighton & Hove City Council
  • Date 19th February 2017
  • Tags Bid & Funding Support, Compliance, Contractor Engagement, Decision Support Tools, Flood Risk Management, Highway Management, Resilience, Stakeholder Engagement, Strategic Advice, Strategic Asset Management

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