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The Humber Suspension Bridge.

The Facts and Figures.


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Until 1998 the Humber Bridge had the longest single span of any bridge in the world.
It represents a considerable achievement for British engineering design and construction.

The Bridge was built by many contractors the main ones were John Howard & Co (sub structure) and British Bridge Builders, this was a consortium formed by Sir William Arrol & Co Ltd, Cleveland Bridge and Engineering Co Ltd and Redpath Dorman Long Ltd. (super structure). The bridge was designed by Freeman Fox and Partners. ( now Acer Freeman).

The Facts and Figures about the Bridge.

Main Span	1,410 metres
Side Spans, North ....................South	280 metres 530 metres
Total length between anchorages	2,220 metres
Clearance over high water	30 metres
Carriageways	Dual two-lane carriageway plus separate footpaths
Total deck width (Including footpaths)	28.5 metres
Tower height above piers	155.5
Main cables	Two cables, each of 14,948 wires of 5mm diameter and 1,540 N/mm2 UTS plus an additional 800 similar wires in each cable on the Hessle side
Diameter of main cables	0.68 metres
Total length of wire	71.000 kilometres
Load in each cable	19,400 tonnes
Weight of steel: ..............deck structure ..............main cables	16,500 tonnes 11,000 tonnes
Total weight in concrete	480,000 tonnes
Depth of foundations: Anchorage, North side Anchorage, South side Tower, North side Tower, South side	21 metres 35 metres 8 metres 36 metres

Below is a table of the main span lengths of the Worlds Suspension Bridges.

Name	Country	Span (Metres)	Year of opening to Traffic	Carriageway width (Metres)
Akashi Kaikyo	Japan	1990	1998	30.0
Great Belt	Denmark	1624	1998	23.6
Humber	England	1410	1981	18.2
Jiangyin Jiangsu	China	1385	1999	30.0
Tsing Ma	Hong Kong	1377	1997	30.7
Verrazano Narrows	U.S.A.	1298	1964	25.3
Golden Gate	U.S.A.	1280	1937	25.0
Hoga Kusten	Denmark	1210	1997	17.80
Mackinac	U.S.A.	1158	1957	16.0
Mihami Bison Seto	Japan	1100	1988	22.5
Bosporus II	Turkey	1090	1988	30.8
Bosporus I	Turkey	1074	1973	28.0
George Washington	U.S.A.	1067	1931	27.5
Kurishima-3	Japan	1030	1999	27.0
Kurishima-2	Japan	1020	1999	27.0

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