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The Humber Bridge is a suspension bridge with the north tower sited on the high water line and the south tower founded in shallow water 500m from the shore. On the north bank, a hard well-jointed bed of chalk comes close to the surface and is covered by a tough layer of glacially deposited chalky boulder clay. The chalk has provided good foundations for both the anchorage and tower on this bank, on the south side, soft alluvium is underlain by beds of boulder clay, sand and gravel. Below these beds, at a depth of 30m, there is a deep bed of stiff, heavily fissured kimmeridge clay, on which the tower and anchorage have been founded. Designed to cross the last major unbridged estuary in Britain, the bridge comprises reinforced concrete towers aerial-spun catenary cables and a continuously-welded, closed box road deck supported by inclined hanger cables. |

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The bridge is a masterpiece of civil engineering and was developed out of a design used initially for the Severn bridge near Bristol, England. Its design lifespan is 120 years. The Consulting Engineers for the project were Freeman Fox & Partners |
| Main Span | 1,410m |
| Side Spans North Side South Side |
280m 530m |
| Length between anchorages | 2,220m |
| Clearance over high water | 30m |
| Deck width (including paths) | 28.5m |
| Tower height above piers | 155.5m |
| Diameter of main cables | 0.68m |
| Total length of wire | 71,000km |
| Load in each cable | 19,400 tonnes |
| Weight of Steel | 27,500 tonnes |
| Weight of concrete | 480,000 tonnes |
| Depth of Foundations, Anchorage North side South side |
21m 35m |
| Depth of Foundations, Towers North side South side |
8m 36m |
Carriageways
....Dual two lane carriageway plus separate paths
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 Northern Side span.










