Design of a challenging ramp connecting Footscray Road to CityLink Northbound as part of the West Gate Tunnel Project

As part of the West Gate Tunnel Project, the existing exit ramp from Footscray Rd westbound lanes to the elevated CityLink northbound lanes is to be upgraded and extended to form a new ramp (Ramp F3) that improves connection from Footscray Rd to CityLink and provides a connection from the new Western Distributor to CityLink. Ramp F3 works will include a combination of local widenings of the existing CityLink northbound viaduct at the southern and northern tie-in sections and an additional independent elevated structure in the middle section. This paper discusses the interesting superstructure concept adopted for the ramp bridge due to the carriageway configurations and the constraints of the heavily built-up site. The new superstructure comprises of steel trough girders with concrete decking at the wider carriageway sections and steel I-girder with concrete decking at the narrow tie-in sections including in-span transition from the trough girder to I-girder. This includes a design solution to provide a tie-down system to prevent uplift of the existing CityLink viaduct bearings in the form of steel brackets connected to the existing structure, and a practical corbel system connected to the existing portal pier which produces more sustainable design as opposed to construction of an additional pier to support the widening superstructure.

• Record URL:
  • https://austroads.com.au/publications/bridges/abc2022-000-22
• Record URL:
  • https://arrbknowledge.com
• Authors:
  • Burshtein, L
• Conference:
  • Austroads Bridge Conference, 11th, 2022, Adelaide, South Australia, Australia
• Publication Date: 2022-11

Media Info

• Pagination: 16p
• Monograph Title: 11th Austroads Bridge Conference, Adelaide, 15th-18th November 2022

Subject/Index Terms

• TRT Terms: Access roads; Bearing capacity; Bearings; Bridge management systems; Bridge superstructures; Bridges; Loads; Maintenance; Pavement widening; Steel bridges
• Geographic Terms: Australia; Melbourne, Victoria
• ATRI Terms: Access road; Bearings; Bridge loads; Bridge maintenance; Bridge superstructure; Steel bridge; Widening
• ITRD Terms: 3473: Superstructure (bridge); 2889: Widening (road, bridge)
• Subject Areas: Bridges and other structures; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01901724
• Record Type: Publication
• Source Agency: ARRB Group Limited
• Files: ITRD, ATRI
• Created Date: Dec 7 2023 2:54PM