The design and construction of the Lyne rail bridge near Chertsey which will eventually carry the Weybridge to Virginia Water railway line over the M25 orbital motorway is described. The 110 M long bridge has been built in advance at an angle of 28 degrees to the line of the motorway. Several alternative designs were considered including "half-through" types and Warren truss girders with one or two spans which with a steel deck, could be built adjacent to the site and subsequently rolled into place. However, because of the high cost of temporary works and disruption to rail services, the railway line has been diverted and a "spine-beam" design in prestressed concrete has been chosen. To avoid having a deep edge beam, intermediate support is provided by cable stays suspended from a centre column in each edge beam. Wind tunnel tests were carried out to check stability of the structure. Work began in 1976 with the diversion of the railway line. It is expected that the structure will soon be completed and the railway line will be returned to its original position.

  • Corporate Authors:

    Ian Allan Limited

    Terminal House
    Shepperton, Middlesex  England  TW17 8AS
  • Authors:
    • LEIGH, C
  • Publication Date: 1978

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 204-205
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00194145
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: May 26 1979 12:00AM