Some outcomes from load testing of Bridge 631 in Western Australia

Bridge 631 is a 190m long timber bridge with 31 spans over the Avon River in Toodyay (approximately 100 kilometres from Perth the capital city of Western Australia). The bridge was constructed from local hardwood timbers in 1950 and has had a series of repairs. However as the width between kerbs was only 5.5 metres and it did not have a footpath it was decided to replace the bridge with a new wider concrete structure during 2001-2002. The proposed removal of the existing timber bridge provided an opportunity to pursue a program of research into aspects of bridge inspection, timber material properties, structural failure and modelling and improved repair techniques and strengthening methods. This paper describes and discusses some of that research. Non destructive evaluation of the bridge prior to construction of the new bridge was conducted during May 2000 using trucks to provide both static and dynamic loadings. Additional static tests were conducted in March 2002 prior to the removal of the bridge in April 2002. (a) For the covering entry of this conference, please see ITRD abstract no. E211602.


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  • Accession Number: 01011233
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 0855886986
  • Files: ITRD, ATRI
  • Created Date: Dec 19 2005 2:55PM