In this brochure the design and construction of the Westmead Bridge over the river Avon, as part of the Chippenham town centre relief road is described. The objective was to design a bridge requiring low long term maintenance. The bridge is a 38 degree skewed single span of 35 metres in the skew direction. The overall width is 17.28 metres to accommodate the 10 metre wide, 180 metre radius single carriageway and verges of varying width. The bridge has a cross fall of 7% reflecting the superelevation of the road. The structure comprises 6 welded plate girders spaced at 2.8 metre centres acting compositely with a reinforced deck slab 245mm thick. Further design and construction details are given. (TRRL)

  • Corporate Authors:

    British Steel, General Steels

    P.O. Box 30
    Motherwell, Lanarkshire, ZZ Scotland   
  • Publication Date: 1991


  • English

Media Info

  • Pagination: 4 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00617232
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Nov 30 1991 12:00AM