The Eighth Wonder of the World
The Thames Barrier is a (0) major part of the flood defence scheme for protecting London (1) ____ rising water levels. The defenses (2) ____ include raised river embankments and additional flood gates at strategic points, including the Barking Barrier. The (3) ____ structure that is the Barrier spans the 520-metre wide Woolwich reach and (4) ____ of 10 separate movable gates, each pivoting and supported between concrete structures which house the operating machinery.
When raised, the four main gates (5) ____ stand as high as a five-storey building and as (6) ____ as the opening of Tower Bridge. Each (7) ____ 3700 tonnes. During the first twelve years of (8) ____ , the Barrier has been closed twenty nine times to protect London.(9) ____ the Barrier from the comfortable Cafeteria. Picnic on the riverside embankment. Enjoy beautiful views from the riverside walk. Visit the shop which stocks a large selection of souvenirs, books and Barrier information.
There is a children's play (10) ____ suitable for 4- to 12-year olds, (11) ____ adjacent to the riverside walk. A visit to the spectacular Thames Barrier is a (12) ____ experience.