A Flood Alert was issued for Chertsey Bourne in Bracknell Forest, Surrey, Windsor and Maidenhead between 25th February 2026 and 14th March 2026. Affected watercourses included the Chertsey Bourne, The Moat, Moat.
During this event, FloodRadar monitoring gauges recorded notable rises. The River Thames at Penton Hook rose 3.86m, peaking at 4.00m, while the River Thames at Bell Weir climbed 3.73m.
Environment Agency advice issued
High river levels today may lead to flooding. River levels remain high on the Chertsey Bourne. Flooding of low lying land and roads is expected to continue today, 14 March 2026, especially in areas of Chertsey close to the River Bourne. Showers are expected today and tomorrow. We expect river levels to stay high over the next few days. We are monitoring rainfall and river levels. Avoid using low lying footpaths and any bridges near local watercourses. Go to River levels online for updates on current river levels. This message will be updated by 8:00PM on 15 March 2026 or as the situation chang
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Penton Hook | River Thames | +3.86m | 4.00m |
| Bell Weir | River Thames | +3.73m | 3.82m |
| Chertsey Lock | River Thames | +3.26m | 3.63m |
| Hythe End | Colne Brook | +0.93m | 1.77m |
| Staines | River Thames | +0.70m | 3.55m |
| Pound Mill, Staines | Wraysbury River | +0.43m | 0.34m |
| Free Prae Road | Chertsey Bourne | +0.37m | 1.73m |
| Guildford Street | Chertsey Bourne | +0.30m | 0.98m |
| Trumps Green | Chertsey Bourne | +0.08m | 0.83m |