Flood Warning Issued for Bourne Valley - The Collingbournes in Wiltshire

Alert Details

The Environment Agency has issued a Flood Warning (Severity Level 2) for groundwater flooding in the Bourne Valley - The Collingbournes. This alert was officially raised on February 24, 2026, at 2:52 PM following high groundwater levels detected in the region.

Affected Areas

The geographic scope of this warning includes the Wessex area, specifically within the county of Wiltshire. Key locations identified as being at risk include:

• Aughton
• Collingbourne Kingston
• Collingbourne Ducis

What You Should Do

Residents in the affected areas are advised to take the following precautions:

• Prepare property resilience measures immediately.
• Ensure that all water pumps are installed, switched on, and in good working order.
• Consider alternative power sources for pumps in the event of a power outage.
• Be aware of potential inundation of septic tanks and sewer systems.
• Exercise extreme caution when driving on flooded roads to ensure personal safety and to prevent floodwater from being pushed into nearby properties.

Expected Conditions

Groundwater levels on the Salisbury Plain remain high and are reactive to further rainfall. The Everleigh borehole has recorded a level of 132.63m. In addition to groundwater issues, any intense rainfall is expected to lead to surface water flooding. The Environment Agency is closely monitoring the situation as groundwater levels continue to pose a threat to infrastructure and property.

Timeline

The alert was issued on February 24, 2026. The Environment Agency expects to provide an update on the situation by 3:45 PM on March 3, 2026, or sooner if conditions change significantly.