The Environment Agency spends £214 million each year (2016 to 2017 figures) to maintain flood risk management assets.

This project explored methods to identify potential efficiency improvements by comparing local maintenance costs. The project identified an effective method for doing this but also concluded that data quality is not yet good enough to apply the method. This report is helping the Environment Agency to focus its efforts to improve data quality.

https://www.gov.uk/government/publications/benchmarking-the-efficiency-of-flood-risk-management-asset-maintenance-costs