CityLink 2024 Inspections Program
Sterling Infrastructure delivered a comprehensive structural inspection program for CityLink Melbourne Limited covering multiple bridge and infrastructure assets across the network. The program included drone-based inspections, traditional access methods, and detailed reporting with 3D modeling and defect documentation across eight distinct inspection packages throughout 2024.
Challenge
CityLink required comprehensive structural condition assessments across eight diverse inspection packages including major bridges like the Bolte Bridge, the Graham Court Viaduct, and supporting structures across the network. The challenge involved coordinating multiple inspection methods across an active motorway with strict traffic management requirements and limited closure windows. The inspection program required careful coordination with multiple stakeholders including Metro Trains Melbourne, private landowners, and local councils, while maintaining continuous motorway operations. The tight timeframes from March to July 2024 demanded meticulous planning to secure approvals, implement safety systems, and deliver comprehensive reporting packages that met the client's rigorous documentation standards.
Solution
Sterling deployed inspection methods tailored to each asset type. For major bridge structures, advanced drone technology enabled underside and topside inspections with live streaming and 3D model generation, minimizing traffic disruption. For steel support structures, Sterling designed temporary access systems spanning multiple zones. All inspection packages followed rigorous quality assurance processes with safety documentation development, kick-off meetings, and client approval checkpoints before commencing work.
Planned Deliverables
Sterling delivered comprehensive inspection documentation packages for each of the eight inspection programs. Deliverables included detailed inspection findings reports, annotated 3D models where applicable, completed inspection datasheets using project-specific templates, and complete photo libraries with mapping links for spatial reference. For drone-inspected structures, Sterling provided high-resolution footage, 3D models with defect annotations, and structured data ready for import into the client's asset management system. The reporting identified components requiring follow-up detailed inspection work. Process documentation included meeting minutes, approved safety and quality management plans, and traffic management plans. All deliverables were submitted through a structured review process with draft submissions for client review followed by final report packages incorporating feedback.
Expected Outcomes
Sterling successfully completed all eight inspection packages within the contracted timeframe from March to December 2024, delivering comprehensive condition assessments across the CityLink network. The program identified defects and structural concerns requiring attention, with clear prioritization for critical components. The integration of drone technology enabled efficient inspection of difficult-to-access areas while minimizing traffic disruption. The 3D modeling deliverables provided the client with powerful visualization tools for asset management planning and prioritization of maintenance work. All inspection data was successfully integrated into the client's asset management system in the specified format, enabling seamless incorporation into their ongoing workflows. The project demonstrated Sterling's capability to manage complex, multi-package inspection programs across major infrastructure assets while maintaining strict safety standards and delivering high-quality technical documentation.
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