Flood Alert Issued for Denmead as Groundwater Levels Rise in Hampshire

Flood Warnings medium Environment Agency · · Hampshire, United Kingdom

The Environment Agency has issued a flood alert for Denmead, Hampshire, warning of potential groundwater flooding affecting roads and sewage infrastructure through early March.

Alert Details

The Environment Agency has issued a flood alert for groundwater flooding in Denmead. This alert, classified as severity level 3, indicates that flooding is possible in the region due to high groundwater levels.

Affected Areas

The alert specifically covers Denmead in the county of Hampshire, located within the Solent and South Downs area. Residents should note that water is already flowing into the road in some parts of the area.

What You Should Do

Residents are advised to prepare property resilience measures immediately. Those who have water pumps installed should verify that they are in proper working order. The Environment Agency is closely monitoring the situation as groundwater levels impact the local environment.

Expected Conditions

High groundwater levels are currently causing water to flow into the road and may affect the efficiency of the local sewage network. Although only 10mm of rain has been recorded in the last week, the groundwater levels have been rising, though the rate of increase has recently started to slow. Only small amounts of rain are expected in Hampshire between Thursday, February 26, and Monday, March 2, 2026.

Timeline

The alert was raised on Thursday, February 26, 2026. Groundwater levels in Denmead are expected to begin to stabilise during the next week. This message is scheduled to be updated by 6:00 PM on March 5, 2026, or sooner if the situation changes.

Source: Environment Agency Official Notice