Design of the grade separation of Gippsland Railway at Narre Warren Cranbourne Road

This paper discusses the design of the grade separation of the existing level crossing of the Gippsland Railway and Narre Warren Cranbourne Road in the rapidly growing outer Melbourne suburb of Narre Warren. The grade separation is achieved by lowering of the road gradeline to underpass the railway and duplicating the road. The aim of the design is to minimise the road lowering to attain a satisfactory vertical alignment for the grade separation such that required sight distances are achieved whilst maintaining the existing rail grade. This design aim was achieved by minimising the structural depth through adoption of a “through girder” type bridge constructed from prestressed concrete. The bridge was designed to be constructed alongside its final position and then jacked into place within a single weekend occupation of the rail tracks. The innovative solution discussed in this paper will maintain a safe operation for rail customers, without prolonged reduction in the level of service for both road and rail traffic and meet the objectives of the project. (a) For the covering entry of this conference, please see ITRD abstract no. E211602.


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  • Accession Number: 01011331
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 0855886986
  • Files: ITRD, ATRI
  • Created Date: Dec 19 2005 3:03PM