Environment Agency: River Thames Navigation Restrictions Due to Blue-Green Algae Bloom

• Navigation restrictions and closures are in place on the River Thames due to ongoing works by the Environment Agency.
• A blue-green algae bloom has been confirmed in the lower non-tidal River Thames between Sunbury Lock and Teddington Lock, posing health risks for river users.
• Whitchurch Lock is closed to navigation until further notice, while Sunbury Lock will be on hand wind during certain hours.
• Osney Lock is open to navigation after a tree obstruction was removed from its cut.

The presence of blue-green algae in the River Thames poses significant health risks, particularly for individuals who come into contact with the water.

The River Thames is subject to various navigation restrictions and closures due to ongoing works by the Environment Agency. These restrictions are in place to ensure public safety, particularly during the blue-green algae bloom that has been confirmed in the lower non-tidal River Thames between Sunbury Lock and Teddington Lock. The agency carries out a programme of works every year between October and March, which includes lock closures for extended periods. The first issue of the programme is published 10 weeks in advance to allow river users to plan their winter cruising and boat movements accordingly.

Whitchurch Lock has been closed to navigation until further notice, while Sunbury Lock will be on hand wind during Lock and Weir Keeper hours. Outside of these hours, the lock will be closed to navigation. Additionally, Osney Lock is open to navigation after a tree obstruction was removed from its cut. However, a fallen tree is blocking the upstream lock cut, causing it to remain closed until further notice. These updates are part of ongoing efforts by the Environment Agency to manage river traffic and ensure public safety.

The presence of blue-green algae in the River Thames poses significant health risks, particularly for individuals who come into contact with the water. Skin contact can cause rashes, while swallowing the water can lead to illness. The Environment Agency has confirmed the bloom's presence between Sunbury Lock and Teddington Lock, including at the Ham and Kingston Designated Bathing Water. It is essential for river users to be aware of these risks and take necessary precautions when navigating restricted areas.

Lawyers and compliance officers should be aware of the potential health risks associated with blue-green algae blooms in the River Thames, particularly for individuals who come into contact with the water. They may need to advise clients on how to mitigate these risks or provide guidance on navigating restricted areas.

Source: Original reporting via GOV.UK