ADMICRO

The Thames Barrier is a major part of the flood defence scheme for protecting London (i) _______ rising water levels. The defenses also include raised river embankments and additional flood gates at strategic points, including the Barking Barrier. The unique structure that is the Barrier spans the 520- melre wide Woolwich reach and consists of 10 separate movable gates, each pivoting and supporting between concrete structures which house the operating machinery. When raising, the four main gates (ii) _______stand as high as a five-storey building and as wide as the opening of Tower Bridge. Each weighs 3700 tones. During the first twelve years of (iii) _______, the Barrier has been closed twenty nine times to protect London. You can (iv) _______ 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 area suitable for 4- to 12- year olds, located adjacent to the riverside walk. A visit to the spectacular Thames Barrier is a (v) _______experience

(iv)______.

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