Blue Line O'Hare Branch Traction Power Improvements

This map shows the location of the project. For projects that do not have a specific location but affect a line/route or the entire system, either the affected lines/routes are shown, or an entire service area map is shown.

If you select the option to “toggle the benefit layer,” you will see an approximation of the area that will benefit from the project.

Project programmed before 2024; Not evaluated by these metrics.

Project Description

Blue Line O'Hare Branch Traction Power Improvements GTT - Project will include targeted track repairs to remove existing slow zones on the Congress Branch of the Blue Line. CTA has identified traction power voltage drop issues along the Blue Line. Scope of work will include but not limited to the following elements: New infill substations, infill wayside energy storage systems, infill tie houses, third rail replacement, addition of auxiliary negative rail; work will be performed by an outside contractor. In addition project will aslo provide for the replacement of ties, track fasteners, footwalks, and incidental signal and traction power; this part of work will be performed by CTA Field Forces.