Flood Warning Issued for Mansbridge and Woodmill on the River Itchen in Southampton

Alert Details

The Environment Agency has issued a Flood Warning (Severity Level 2) for the River Itchen at Mansbridge and Woodmill. High river levels are expected to cause flooding over the next two days due to a combination of heavy rainfall and high tide cycles.

Affected Areas

The warning specifically covers Mansbridge and Woodmill on the River Itchen in Hampshire and Southampton. Impacted locations include:

• Access roads and car parking areas near the White Swan Pub
• The car garage at Mansbridge
• Parts of Riverside Park
• The interior of the White Swan Pub, where water may be forced up through the floor

What You Should Do

Residents and business owners in the affected area are advised to activate any flood protection products they have, including specific defenses around the White Swan Pub. The Environment Agency is currently checking rivers for blockages and is coordinating with Southampton City Council regarding the operation of Woodmill.

Expected Conditions

Water levels are forecast to reach 5.04 metres Chart Datum (2.30 mAOD). Rainfall is predicted to continue through Thursday morning, February 19, 2026, with accumulations of up to 25mm expected. If rainfall significantly impacts the river, the flood risk and associated impacts will increase.

Timeline

The alert was raised on February 18, 2026. High tides are forecast for the following times:

• 23:45 on February 18, 2026
• 02:00 on February 19, 2026
• 12:00 on February 19, 2026

Rainfall is expected to persist until the morning of Thursday, February 19. This message will be updated by 6:00 PM on February 19, 2026, or sooner if the situation changes.