CHICAGO, IL — Fluor Corporation and its joint venture partner, Walsh Construction Company, have reached substantial completion on the Chicago Transit Authority’s (CTA) $2.1 billion Red and Purple Line Modernization Phase One Project, the largest completed capital project in CTA’s history.

The project team includes Fluor, Walsh Construction, Stantec (design), Hitachi (signaling), and Meade (electrical contractor).

“Reaching substantial completion on this landmark project is a testament to the strength of our partnerships, the commitment of our teams, and our shared focus on delivering transformational infrastructure,” said Shawn West, President of Fluor’s Infrastructure business.

Since commencing in 2019, the program has modernized and replaced just over 2 miles of 100-year-old elevated track between Lawrence and Bryn Mawr, and rebuilt four stations into modern, fully accessible facilities with enhanced passenger flow, security, and signage. The project also includes the Red-Purple Bypass, a new elevated bypass for the Brown Line that eliminates track conflicts and improves throughput for Red, Purple, and Brown Line service. In addition, 11 miles of new digital track circuit signaling have been installed, increasing capacity today while enabling future enhancements in signaling and rolling stock.

The project was executed while maintaining rail transit service along the alignment. The new stations and tracks fully opened in the summer of 2025, with final completion for RPM Phase One scheduled for November 2026.