Passengers on the Woolwich Ferry viewing the Thames Barrier

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The Independent Online
(Photograph omitted)

Passengers on the Woolwich Ferry viewing the Thames Barrier, in operation yesterday when the pounds 500m flood defence system's 10 steel gates were raised for a day to test its efficiency against a high tide. During the annual test the water level below the barrier reaches a height of almost 4m (13ft) above its up-river level

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