A Flood Alert was issued for Upper Bristol Avon area in Gloucestershire, South Gloucestershire, Wiltshire on 12th March 2026. Affected watercourses included the Bristol River Avon.
During this event, FloodRadar monitoring gauges recorded notable rises. The Woodbridge Brook at Crabb Mill rose 0.42m, peaking at 0.70m, while the River Avon at Corsham climbed 0.41m.
Environment Agency advice issued
Rising river levels throughout the evening may lead to flooding. Flooding is possible on 12 March 2026 tonight and during Friday 13 March 2026. Locations most at risk of being affected will be low lying land and roads near rivers, particularly at Reybridge. No properties are expected to flood at this point. We are closely monitoring the situation and checking rivers for blockages. Start acting on your flood plan if you have one and avoid low lying roads near rivers, which may be flooded This message will be updated by 9:30AM on 13 March 2026 or as the situation changes.
Monitoring gauges during this event
| Station | River | Rise | Peak |
|---|---|---|---|
| Crabb Mill | Woodbridge Brook | +0.42m | 0.70m |
| Corsham | River Avon | +0.41m | 0.46m |
| Bathford | River Avon | +0.35m | 1.35m |
| Dauntsey | Dauntsey Brook | +0.24m | 0.40m |
| Bradford on Avon | River Avon | +0.18m | 1.36m |
| Rodbourne | Gauze Brook | +0.17m | 0.35m |
| Great Somerford | River Avon | +0.15m | 0.61m |
| Bath Destructor Bridge | River Avon | +0.12m | 3.53m |
| Pewsey | River Avon | +0.08m | 0.18m |
| St Johns Weir | Sherston Avon | +0.08m | 0.38m |