Sydney Harbour Bridge

Sydney Harbour Bridge

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Posted 2012-02-01 by Ivana Katzfollow

View of the bridge arch, which is composed of two 28-panel arch trusses; their heights vary from 18 m (59 ft) at the centre of the arch to 57 m (187 ft) at the ends next to the pylons.

The arch has a span of 503 m and its summit is 134 m (440 ft) above mean sea level; however, expansion of the steel structure on hot days can increase the height of the arch by as much as 18 cm.

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209015 - 2023-06-16 06:16:21

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