There are 45 non-tidal locks along the River Thames, including Henley's A trade union has said River Thames lock and weir keepers are set to be balloted for industrial action over safety concerns.

The Thames Tideway Tunnel is a deep-level ‘super sewer’ that spans 15 miles from Acton to Stratford, along the tidal section of the River Thames. Work on the tunnel began in 2016, and ...

A passage of text on the map stated that “the tidal Thames is not safe to swim in”, and it instead suggests Londoners enjoy locations like Hampstead Ponds, the Serpentine in Hyde Park ...