Freyssinet Australia was engaged by CPBJH JV to strengthen Span 4 of CityLink’s Bridge 73 over Footscray Road using externally applied prestressing to the existing Super‑T girders. The solution deployed Freyssinet’s proprietary 1R15 ducted anchorage system with full duct grouting to comply with VicRoads and WGTP technical requirements—delivered safely within live‑traffic constraints and night‑shift closures. The works achieved a durable, compliant upgrade to extend structural capacity and performance on a critical urban corridor.
  • Customer/Owner:
    Victoria State Government
  • Engineer
    N/A
  • Works period
    May 2023 - October 2024

Freyssinet Scope

  • External prestressing of Super‑T girders on Span 4 using 1R15 ducted anchorage system (with duct grouting to meet specifications
  • Coring and surface preparation at anchorage locations; installation and grouting of steel deviators
  • Installation and stressing of Freyssibars (stress bars), cutting overlengths, grout caps, and bar grouting
  • Installation of strands and HDPE ducts; stressing of strand tendons; duct grouting to completion
  • Work planning under live‑traffic conditions, night‑shift activities and rolling traffic stops, with EWPs for access and site QA/ITP compliance
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