A westbound CTA Green Line train derailed Saturday afternoon as it pulled into the Harlem/Lake station near Marion Street, staying upright while crews rushed to put out a small track fire and clear everyone off board. Three passengers were taken to area hospitals with injuries described as non-life-threatening, and power to the tracks was shut off for a time so crews could assess the damage.
The derailment happened at approximately 3:01 p.m. Saturday, according to the Wednesday Journal, which reported that Oak Park police officers stationed nearby at Oaktoberfest actually witnessed the train come off the rails as it approached the platform. The Oak Park Fire Department transported the three injured riders to area hospitals, and the same report notes that power was restored to the tracks later that evening once safety inspections wrapped up.
NBC Chicago reported the derailment near the elevated tracks caused major delays for hours, with the derailed train visible off the rails in social media video circulating from the scene. CTA trains were running again by 6:40 p.m., though riders faced lingering delays, and the agency set up shuttle buses running between Harlem/Lake and Ashland/Lake to help stranded commuters. A CTA website alert warned that some trains and platforms may be busier than usual as crews worked to restore normal service, advising travelers to allow extra time.
A Terminus With Deep History Now in the Spotlight
Harlem/Lake sits at the western end of the Green Line, perched on an elevated embankment along the border of Oak Park and Forest Park, where CTA tracks run parallel to Metra's Union Pacific West Line, according to background compiled on Wikipedia. The station was rebuilt in 1962 specifically to eliminate dangerous street-level rail crossings in the area. The Green Line itself is the CTA's only completely elevated rail line, and it carried an average weekday ridership of 24,693 passengers across its 31 stations as of 2024, per the same source.
Green Line trains run on 5000-series rail cars built by Bombardier Transit Corporation, which began replacing older equipment on the line starting in 2012, according to Metro Magazine. Those cars brought modern aisle configurations and electronic displays when they debuted. The exact technical cause of Saturday's derailment, including whether track conditions or switch mechanisms were involved, has not been determined.
Part of a Rough Year for CTA Rail
Saturday's incident is far from an isolated one for Chicago's transit agency this year. In July, a CTA Yellow Line train derailed in Evanston after a tree toppled onto the tracks during severe weather, and firefighters had to guide 31 stranded passengers down an embankment using ropes, as covered by Hoodline in its report on the fallen-tree derailment. Just months earlier, in April, a derailment at the Howard terminal disrupted service across the Red, Yellow, and Purple lines on the North Side and forced firefighters to walk passengers off the damaged train.
Federal regulators have also scrutinized CTA rail safety in recent years. A November 2023 collision between a Yellow Line train and a stationary snow removal vehicle near Howard Yard injured 16 people and caused $8.7 million in equipment damage, prompting an extensive investigation by the National Transportation Safety Board, which identified wheel slide and braking system issues as contributing factors. Nationally, Federal Transit Administration statistics show more than 4,000 train derailments occurred between 2020 and 2023, with roughly 70 percent happening in municipal or urban settings.
The derailment also comes just weeks after the CTA reopened the nearby Austin station on the Green Line following a $25.6 million overhaul, a project that pushed the agency's systemwide vertical accessibility rate to 75 percent under its Austin station upgrade initiative. The CTA has said it aims to make all 146 rail stations fully accessible by 2038, even as questions remain about what caused Saturday's derailment and whether infrastructure issues played a role.
