Flood Alert Issued for Chertsey Bourne in Surrey and Berkshire Regions

Alert Details

The Environment Agency has issued a flood alert for the Chertsey Bourne. The alert was officially raised at 09:29 AM on February 25, 2026, following reports of high river levels that may lead to flooding in the Thames area.

Affected Areas

The geographic scope of this alert includes Bracknell Forest, Surrey, and Windsor and Maidenhead. Specific areas of concern include low-lying land and roads near the Chertsey Bourne and The Moat, with particular emphasis on areas of Chertsey close to the River Bourne.

What You Should Do

Residents are advised to avoid using low-lying footpaths and any bridges near local watercourses. The Environment Agency recommends that the public monitors river levels online for the most current updates. Local authorities and emergency services are currently being liaised with to manage the situation.

Expected Conditions

River levels are currently high but are slowly falling on parts of the Chertsey Bourne. Flooding of low-lying land and roads is expected to continue throughout today, February 25, 2026. While river levels remain high, very little rainfall is forecast over the next few days, which is expected to allow levels to continue their slow decline.

Timeline

The alert is effective as of February 25, 2026. Officials expect river levels to remain high but continue falling over the next several days. This message is scheduled to be updated by 20:00 on February 26, 2026, or sooner if the situation changes.