Thames Barrier
The wub, CC BY-SA 4.0, via Wikimedia Commons
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About this Site
The Thames Barrier is a movable flood control structure built between 1974–1984 across the River Thames, approximately 2 miles east of central London. It protects the city from storm surges and tidal flooding. The design comprises ten steel gates—four main navigational and six intermediate spans—each rotating to seal off the river when high tides threaten. Key engineering features include the 20 m-high gates, hydraulic lifting mechanisms, and a control centre that monitors water levels across the Thames Estuary. Regular monthly closure tests demonstrate its operational readiness, and it remains one of the world’s largest moveable flood barriers.
Visitor Information
The on-site Visitor Centre operates on Saturdays from 5 April to 25 October 2025 10:30 to 15:30. Group visits require advance booking. Admission is approximately £6 adult, £4.80 child, with group rates available. The centre includes a scale working model, interactive exhibits, and a short film on flood risk and barrier operations. Viewing the barrier itself is always possible from riverside paths; barrier closings (typically monthly) can be observed from nearby vantage points or watching platforms. London transport connections include bus and DLR services to Woolwich, followed by a short walk.
Key Info
Type:Power Plant
Visitability:Viewable
Address:1 Unity Way, Royal Borough of Greenwich, London SE18 5NJ, UK
Website:Visit
Map
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