Glenelg tram overpass: design and construction innovations

The Glenelg Tram Overpass project involved eliminating a level crossing on the busiest and most critical freight route in South Australia - South Road. A number of innovations during the tender phase minimised construction time and reduced the impact on adjacent communities. This included the use of precast piers and headstocks and a cycleway cantilevered from the elevated railway structure. The project also presented a number of safety and technical challenges. Concealment in the lift wells was overcome by using elliptical voids in the precast walls to provide passive surveillance. The requirement to weld groove rail and standard rail sections was addressed by machining a tapered rail profile. The variability in bridge girder hog and sag caused problems in achieving the rail geometry tolerances on the finished deck levels. This was rectified by using shims under the rail base plates. Surveying the base plate positions before and after concreting the bridge deck slabs enabled the deck to be drilled to avoid the reinforcement and was highly successful.

Media Info

  • Pagination: 6p.
  • Monograph Title: Rejuvenation and renaissance: CORE 2010: conference on railway engineering, 12-15 September 2010, Wellington, New Zealand

Subject/Index Terms

Filing Info

  • Accession Number: 01517065
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Mar 4 2014 8:06PM