How Many bolts are in the Brisbane story bridge?
BRISBANE STORY BRIDGE – The plates of steel are held together by around 6 million steel rivets. Some more interesting features and statistics of the bridge are – It is interesting to note that the four pylons are actually placed mainly for aesthetic reasons on each corner of the bridge. The pylons are about 90 metres above the average water level. The Sydney Harbour Bridge design had to perform functionally and be pleasing to the eye as well. The pylons are made of concrete that is covered by grey granite from Moruya on the south coast of New South Wales. When the bridge was constructed the use of reinforced concrete was in its infancy. Today the Harbour Bridge ranks second or third in the world in terms of span but it is still considered to be the greatest of its type in the world because of its load bearing capacity and width of nearly 50 metres. Known locally as the ‘coat hanger’ and now more commonly as ‘the bridge’, the bridge was manufactured in sections on a site on the western
