Flood Alert Issued for Tidal Thames Riverside Between Thames Barrier and Putney Bridge

Alert Details

The Environment Agency has issued a flood alert for the Tidal Thames riverside, stretching from the Thames Barrier to Putney Bridge. The alert was officially raised at 8:19 AM on March 3, 2026, in response to rising astronomical tide levels.

Affected Areas

The alert covers a broad geographic area including the City of London, Greater London, Greenwich, Hammersmith and Fulham, Kensington and Chelsea, Lambeth, Lewisham, Newham, Southwark, Tower Hamlets, Wandsworth, and Westminster.

Specific locations identified as having a possibility of flooding include:

• Custom House (EC3R)
• Narrow Street (E14)
• Mayflower and Angel pubs (SE16)
• Royal Naval College riverfront
• The Almshouse Slipway at Crane Street (SE10)
• Bankside by the Tate Modern (SE1)
• Three Mill Island (E3)

What You Should Do

Residents and visitors in the affected areas are advised to take care and avoid walking, cycling, or driving through flood water. While the Environment Agency is closely monitoring the situation, flooding of properties is not currently expected.

Expected Conditions

High tides are expected to lead to potential flooding. The forecast high tide at London Bridge is predicted to reach 4.55 mAOD at 1:45 PM on March 3, 2026. Current river flow at Teddington Weir is measured at 166 cubic metres per second and is falling slowly.

Timeline

The alert is specifically effective for the window between 12:45 PM and 2:45 PM on March 3, 2026. Officials expect to provide an update by 6:00 PM today, or sooner if the situation changes.