Client
Chicago Transit Authority
Location
Chicago, IL, U.S.

CTA Red and Purple Line Modernization Program

The Chicago Transit Authority (CTA) selected the joint venture team of Fluor and Walsh Construction Company to design and build Phase One of the Red and Purple Line Modernization Program. The $2.1 billion project will be the largest capital project in CTA’s history, ultimately resulting in expanded capacity and improved infrastructure along the region’s most used rail lines.

The project involves building new elevated tracks along a 1.9-mile section in Chicago, including new bridges, support structures and existing tracks. Four of the CTA’s busiest stations will be replaced, and a grade-separated bypass for the Brown Line at Clark Junction will be built. The signal system will also be upgraded.


Client's Challenge

The Red and Purple Lines serve customers in some of the densest neighborhoods in Chicago, and weekday rush period ridership increased nearly 40 percent over a five-year period. The modernization program will allow the lines to accommodate more riders, improving mobility in the area.

Additionally, most tracks and bridges are nearly 100 years old. Upgraded infrastructure will reduce the need for frequent repairs and maintenance that disrupt service.



Fluor's Solution

Fluor and Walsh, along with designer Stantec Consulting Services, will bring decades of industry megaproject and transit experience to this massive program, delivering state-of-the-art services, improved quality, safety and reliability, and an upgraded customer experience.


Conclusion

Construction will begin in the fall of 2019 and is scheduled to be completed in early 2025.