GREAT BRITISH ENGINEERING

THE HUMBER BRIDGE

The bridge was opened officially by HM Queen Elizabeth II on 16th July 1981.
With a centre span of 1,410 metres (4,626 ft) and a total length of 2,220 metres (7,283 ft), the Humber Bridge was the longest single-span suspension bridge in the world for 16 years.
Each tower is a hollow concrete column, each measuring 155.5 metres (510 ft) tall and tapering from 6 metres (20 ft) square at the base to 4.5 metres (14.8 ft) x 4.75 metres (15.6 ft) at the top. The bridge is designed to withstand constant motion and bends more than 3 metres (10 ft) in winds of 80 miles per hour (129 km/h). The towers, although both vertical, are not parallel, being 36 millimetres (1.4 in) farther apart at the top than the bottom as a result of the curvature of the earth.
The north tower is on the bank, and has foundations down to 8 metres (26 ft). The south tower is in the water, and descends to 36 metres (118 ft) due to the shifting sandbanks that make up the estuary.

There is enough wire in the suspension cables to circle the Earth nearly twice.
The bridge held the record for the world's longest single-span suspension bridge for 16 years from its opening in July 1981 until the opening of the Great Belt Bridge in June 1997 and was relegated to third place with the opening of the Akashi-Kaikyo bridge in April 1998. It is now the fifth longest single-span suspension bridge after two longer span bridges opened in China, the Sihoumen bridge and the Runyang Bridge. It remains the longest bridge in the world that one can cross on foot.

http://www.humberbridge.co.uk/explore.php

Here you can find information about the design which is very unique due to the winds and materials. There are activities and much more.… a great piece of Britain.