PCL, Supreme Steel win Green Line LRT contracts
The projects will advance a 26,000 square metre Maintenance and Storage Facility.

Key Takeaways:
- Calgary has awarded targeted contracts to PCL Construction and Supreme Steel to advance the 26,000 square metre Maintenance and Storage Facility for the Green Line LRT.
- PCL is currently executing underground utility and foundational concrete work, while Supreme Steel will fabricate 100% of the project’s structural steel locally in Alberta.
- The multi-building yard will serve as the primary maintenance, cleaning, and repair hub for the transit network’s incoming low-floor light rail vehicle fleet.
The Whole Story:
The City of Calgary has awarded two structural and foundational contracts to advance construction on the Maintenance and Storage Facility (MSF), a core operational hub for the Green Line LRT southeast expansion project. The massive facility will cover approximately 26,000 square metres over a 2.25-hectare site, serving as the central hub where the transit network’s new low-floor light rail vehicles (LRVs) will be housed, cleaned, and repaired.
The first contract has been awarded to PCL Construction to execute the foundational and civil phase of the build. PCL began on-site mobilization in late May and is scheduled to complete its scope of work by the end of December. This initial phase involves comprehensive site grading, the installation of deep underground utilities, and the pouring of concrete structural foundations required to support the complex’s three interconnected buildings.
The second contract, awarded to Supreme Steel, covers the procurement, off-site fabrication, and eventual erection of the primary structural steel framework. Supreme Steel, an Alberta-owned manufacturer previously recognized for fabrications on the Calgary Bow Tower, will manufacture 100% of the required steel components domestically within the province. Off-site steel fabrication is scheduled to begin later this summer, with visible above-ground steel installation on the MSF site slated to commence next year.
Once fully completed, the multi-building facility will function as a self-contained transit city, incorporating a three-level maintenance shop, active storage tracks, service lanes, component repair stations, and an automated train wash alongside centralized administrative offices. City officials confirmed that one final contract for the MSF will be tendered later this year to select a main construction management partner responsible for facility integration and coordinating specialized vehicle assembly equipment.