Leigh flood storage area and Hildenborough defences scheme
United Kingdom · Water and environment
In-depth researchRelease 1
Project scope
The completed scheme combines upgrades to the existing Leigh flood storage area with new Hildenborough defences. At Leigh, storage capacity increased by about 23% after the maximum stored-water level at the control structure was raised by 55 cm; the expanded area is reported to hold about 7.4 million cubic metres. Works included new gates, lifting and electrical systems, and moving maintenance platforms. At Hildenborough, works comprise a 98-metre floodplain embankment, a pumping station on the Hawden Stream, and a sheet-piled wall intended to prevent River Medway water backing up into Hildenborough without increasing flood risk elsewhere. The release says the scheme will reduce flood risk to 1,870 homes and 575 businesses; about 180 Hildenborough homes affected by flooding in 2013 are identified as benefiting directly from the new embankment and pumping station, while other properties benefit from Leigh's additional capacity. The release also cautions that defences reduce, but do not eliminate, flood risk.
Reported status and procurement
Reported development
Not established
Procurement availability
Unknown / not established
A source report alone does not establish current progress or an open buying window.
Project summary
An Environment Agency release published on 30 September 2026 reported that the combined Leigh flood storage area and Hildenborough defences scheme had officially opened by that date. At Leigh, the release reports increased storage capacity of about 23%, to approximately 7.4 million cubic metres. Hildenborough works include a 98-metre embankment, a pumping station on the Hawden Stream and a sheet-piled wall. The release says the scheme will reduce flood risk for 1,870 homes and 575 businesses, and identifies about 180 Hildenborough homes affected by flooding in 2013 as benefiting directly from the local works. It cautions that flood defences do not eliminate flood risk.
Evidence limits and unknowns
The supplied release reports the scheme had opened as of 30 September 2026; it does not establish later project status, a follow-on phase, a current procurement package, or a buying window.
This summary reflects the supplied title and main-text material only. The whole document was not reviewed, linked documents and images were not assessed, and contact-containing material was excluded.
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Project metadata
Country
United Kingdom Based on reviewed release evidence
Region
Europe
Category
Water and environment Derived from released evidence
Physical assets
Not classified
Based on this release's supporting evidence. Unresolved fields remain unclassified; these labels do not establish current progress or a buying window.
Released facts and supporting evidence
Each fact retains its source, uncertainty and time context. If a publisher page moves or is unavailable, use the recorded quotation and observation date below.
Project name
Source reported
Leigh flood storage area and Hildenborough defences scheme
Attributed to Environment Agency / GOV.UK.
Source: UK Environment Agency / GOV.UK · publication date not recorded · observed 2026-10-06
Sources and evidence · UK Environment Agency / GOV.UK
Source published: Not recordedObserved: 2026-10-06
The completed scheme combines upgrades to the existing Leigh flood storage area with new Hildenborough defences. At Leigh, storage capacity increased by about 23% after the maximum stored-water level at the control structure was raised by 55 cm; the expanded area is reported to hold about 7.4 million cubic metres. Works included new gates, lifting and electrical systems, and moving maintenance platforms. At Hildenborough, works comprise a 98-metre floodplain embankment, a pumping station on the Hawden Stream, and a sheet-piled wall intended to prevent River Medway water backing up into Hildenborough without increasing flood risk elsewhere. The release says the scheme will reduce flood risk to 1,870 homes and 575 businesses; about 180 Hildenborough homes affected by flooding in 2013 are identified as benefiting directly from the new embankment and pumping station, while other properties benefit from Leigh's additional capacity. The release also cautions that defences reduce, but do not eliminate, flood risk.
Attributed to Environment Agency / GOV.UK.
Source: UK Environment Agency / GOV.UK · publication date not recorded · observed 2026-10-06
Sources and evidence · UK Environment Agency / GOV.UK
Source published: Not recordedObserved: 2026-10-06
The Leigh flood storage area is between Leigh and Penshurst on the River Medway; the other works are at Hildenborough, in the Tonbridge area of Kent. The stated benefits include downstream communities along the Medway.
Attributed to Environment Agency / GOV.UK.
Source: UK Environment Agency / GOV.UK · publication date not recorded · observed 2026-10-06
Sources and evidence · UK Environment Agency / GOV.UK
Source published: Not recordedObserved: 2026-10-06
Prior and superseded states remain labelled. Dates below identify source publication when known, otherwise source observation. They are not assumed event dates; each fact retains its own time qualifications.
No material timeline events have been released.
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