Victoria Bridge, Bath

Victoria Bridge
Crosses River Avon
Locale Bath, England
Owner Bath and North East Somerset Council
Architect James Dredge
Engineering design Motley and Dredge
Design cable-stayed double cantilever
Material Bath stone and iron
Total length 45.7 metres (150 ft)
Width 5.8 metres (19 ft)
Number of spans 1
Construction begin August 1836 (1836-August)
Construction end December 1836 (1836-December)
Preceded by Midland Bridge
Followed by Destructer Bridge
Heritage status Grade II* listed building
Victoria Bridge

Victoria Bridge in Bath, England was built in 1836 across the River Avon. The bridge has been recognised as a Grade II* listed building.[1]

The bridge is an important example of a cable-stayed bridge which initially carried horses and carts but later carried cyclists and pedestrians until its closure on safety grounds in 2011.

Construction

The cable-stayed double cantilever bridge, built by Motley and Dredge, has a span of 45.7 metres (150 ft) with the cables slung from Bath stone towers. The road deck is joined to the cables by iron rods, which, unusually, are not vertical.[1] James Dredge who was a brewer in Bath designed the bridge to carry beer from his brewery across the river without using a ferry or having to detour through the city centre.[2] Construction cost £1760.[3] He patented the 'Taper principle' based on using chains rather than cables, as is more common in suspension bridges.[2] Dredge's bridge design was considered "a very significant yet relatively short-lived phase in suspension bridge development".[4]

The main span chains have 155 links each of which is 2.5 metres (8.2 ft) long and supports two wrought iron hangers. The deck is made of wooden planks.[3]

Initially the bridge was used for horse drawn carts but later only carried bicycles and pedestrians.

Closure

In October 2010 the bridge was closed to users,[5] because of concerns about the safety of the beams and cables.[6] This caused criticism from cycling groups in the city.[7] It was reopened later in October 2010,[8] but then closed again.[7]

Further inspections were carried out by a structural engineer in September 2011.[9]

In November 2011 the tow-path was closed and then the navigation itself was closed to all boats.[6]

Restoration costs have been estimated at £3 million.[10] Emergency work to prop up either side of the bridge and apply temporary strapping took place in November 2011.[11] Further work is planned to create a temporary truss to support the bridge. Details of the full restoration work have not yet been published but it is planned to be completed by the winter of 2013.[12]

References

  1. ^ a b "Victoria Bridge". Images of England. English Heritage. http://www.imagesofengland.org.uk/Details/Default.aspx?id=443907. Retrieved 17 November 2011. 
  2. ^ a b "James Dredges Suspension Bridges". SABRE. http://www.sabre-roads.org.uk/wiki/index.php?title=James_Dredges_Suspension_Bridges. Retrieved 17 November 2011. 
  3. ^ a b Griffiths, R.A. (April 2009). "Analysis of James Dredge's Victor Bridge, Bath". Proceedings of Bridge Engineering 2 Conference 2009. http://www.bath.ac.uk/ace/uploads/StudentProjects/Bridgeconference2009/Papers/GRIFFITHS.pdf. 
  4. ^ McQuillan, D. (February 1994). "From brewer to bridge builder: reflections on the life and work of James Dredge". Proc. Instn Civ, Engers 102: 34-42. http://jamesdredge.jimdo.com/the-life-work-of-dredge/. 
  5. ^ "Victoria Bridge, Bath (Temporary prohibition of use by pedestrians and cyclists) Order 2010". Bath and North East Somerset Council. http://www.bathnes.gov.uk/transportandstreets/roadshighwaysandpavements/roadworks/roadreport/publicnoticeshighways/temporarytrafficorders/Pages/VICTORIABRIDGE,BATH.aspx. Retrieved 17 November 2011. 
  6. ^ a b "Update: New row over Victoria Bridge as part of river closed to boats". This is Bath. http://www.thisisbath.co.uk/Update-New-row-Victoria-Bridge-river-closed-boats/story-13797253-detail/story.html. Retrieved 17 November 2011. 
  7. ^ a b "Cyclists fume over Bath footbridge closure saga". This is Bath. 23 November 2010. http://www.thisisbath.co.uk/Cyclists-fume-Bath-footbridge-closure-saga/story-11340707-detail/story.html. Retrieved 17 November 2011. 
  8. ^ "Victoria Bridge reopens after safety probe". This is Bath. 13 October 2010. http://www.thisisbath.co.uk/Victoria-Bridge-reopens-safety-probe/story-11344028-detail/story.html. Retrieved 17 November 2011. 
  9. ^ "Unsafe Victoria Bridge in Bath reassessed". BBC. http://www.bbc.co.uk/news/uk-england-somerset-14490024. Retrieved 17 November 2011. 
  10. ^ "Bath's Victoria Bridge restoration estimated to cost £3m". BBC. 17 November 2011. http://www.bbc.co.uk/news/uk-england-somerset-15770075. Retrieved 17 November 2011. 
  11. ^ "Victoria Bridge in Bath to be strapped up for safety". BBC. 16 November 2011. http://www.bbc.co.uk/news/uk-england-somerset-15753274. Retrieved 17 November 2011. 
  12. ^ "Victoria Bridge — update statement". Bath and North East Somerset Council. http://www.bathnes.gov.uk/news/latestnews/2011/november/Pages/VictoriaBridge-updatestatement.aspx?inform. Retrieved 17 November 2011.