Council flood management works to 'Slow the Flow' in Blackbrook
St Helens Borough Council has outlined a new programme of flood management works in Blackbrook designed to 'slow the flow' of water and reduce flood risk to homes and businesses along this section of the Sankey Canal.
Article date: 16 January 2026
'Slow the Flow' is a natural and effective approach to managing flood risk. It works by temporarily holding rainwater within the landscape during periods of heavy rainfall. By slowing the movement of water, the speed and volume of flow travelling downstream is reduced.
The works will be delivered in phases and include the installation of 'leaky dams' along the former Contour Canal, and the creation of earth bunds to form a series of wet woodland enhancements, to establish natural pools along the valley floor.
This process also provides valuable habitats for plants and wildlife.
Together, these targeted measures in the area between the Sankey Valley Visitor Centre and the A580 East Lancashire Road Bridge will help protect homes, businesses, and infrastructure across the wider area.
The measures were received positively during a presentation to residents at a meeting at Sankey Valley Visitor Centre last week.
Councillor Tracy Dickinson, Cabinet Member for Neighbourhoods and Environmental Services, said:
"While no measures can completely eradicate the risk of flooding, these works are expected to reduce the risk and impact on residents and businesses by capturing and releasing water more slowly during flood events, while also enhancing the natural environment within this Site of Special Scientific Interest."
Councillor Kate Groucutt, Cabinet Member for Business & Inclusive Growth, said:
"This project reflects our commitment to investing in practical, well-designed infrastructure that protects communities while working with the natural landscape. By delivering these works in phases and working closely with our contractors, we're ensuring the scheme is carried out safely, efficiently, and with minimal disruption to residents, businesses, and visitors."
Works are scheduled to begin on 19 January 2026 and are expected to be completed by summer 2026, subject to habitat nesting seasons and weather conditions.
George Cox and Sons Ltd, a North West-based civil engineering firm, has been appointed to deliver the construction phase of the project.
Every effort will be made to minimise disruption to residents, businesses, and visitors during the works, while maintaining footpath access wherever possible.
The scheme is funded by the Environment Agency's Frequently Flooded Allowance (FFA) and Flood Defence Grant in Aid (FDGiA).
For more information and regular project updates residents can visit the project webpage, alongside update letters sent to households in the area.