Science Fair Project Encyclopedia
Queen Elizabeth II Bridge
The Queen Elizabeth Bridge (A282) was built at Dartford to expand the Thames river crossing capacity of the M25 motorway. The central span is 450 metres long, and is suspended 65 metres above the Thames and has been raised to accommodate ocean-going cruise liners and thus is sometimes closed due to high winds.
When it was opened on the 30th October 1991, it was Europe's largest cable supported bridge at 450 metres long. The approach viaducts on the Essex side measure 1052m, and 1008m on the Kent side, giving the total length of 2872m. It has an expected life span of 120 years.
It is a toll bridge and accommodates four lanes of southbound traffic from the M25 except when winds do not allow and one of the two adjacent toll tunnels must be used.
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