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Millennium Bridge

Millennium Bridge

General Information

Structural Type: Suspension bridge
Function / usage: Pedestrian bridge (footbridge)
Built: 1996 - 2000
Status: in use

Geographic Information & Related Structures

Location: City of London, London, England, United Kingdom, Europe
Southwark, London, England, United Kingdom, Europe
Crosses
  • Thames River

Technical Information

Dimensions

main span 144 m
sag 2.3 m
total length 370 m

Cost

cost of construction Pound sterling 18 200 000

Materials

superstructure steel

Chronology

10 June 2000

On the opening weekend, over 150 000 people use the bridge. On Saturday, larger than expected movements are experienced as larger crowds cross the bridge.

12 June 2000

The bridge is temporarily closed to assess the deflection problems that occurred in the first days of opening.

22 February 2002

After addition of dampeners during a £ 5 000 000 repair program, the bridge re-opens to the public.

Notes

The structural problem of the Millennium Bridge is due to "synchronous lateral excitation", where the footfalls from pedestrians create lateral movements in the bridge. These movements are enhanced when the pedestrians attempt to compensate and match their footfalls to the bridge's movements. At more than 156 pedestrians this type of movement increased visibly in the Millennium Bridge. The structural problems were studied at the Cambridge University Structure Laboratory.

Participants

Owner
Architecture
Structural engineering
Checking engineering
Co-contractor
Subcontractor
Cable steel supplier
Bearings
Quantity surveyor
Rehabilitation
Structural engineering
Contractor

Relevant Web Sites

Relevant Publications

Internal Information
Structure-ID: s0000603
Created: 21/01/2000
Last Updated: 22/07/2014