SF Central Subway Back on Track After Quick Fix

San Francisco Central Subway resumes northbound service after step malfunction at Union Square

2026-02-02, Moovit News Team

Central Subway Reopens After Station Issue

San Francisco's Central Subway has resumed northbound service at Union Square Station after a step malfunction temporarily halted trains. The disruption occurred February 2, with transit officials confirming the issue has been resolved, though riders should expect residual delays. The incident affected one of the system's busiest downtown stations during what officials classified as a high-severity service interruption.
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Step Malfunction Caused Service Halt

The service interruption stemmed from a step issue at Union Square Station, one of four stops on the Central Subway line that opened in 2022. Transit officials said the problem required immediate attention to ensure passenger safety. Union Square Station serves as a critical transfer point connecting the Central Subway to other Muni lines and BART service. The agency didn't specify whether the step issue involved escalators, platform edges, or train boarding areas. Such mechanical failures at subway stations typically require inspection and repair before service can safely resume.

Service Restoration and Ongoing Delays

Officials confirmed service restoration through an update posted on social media, indicating trains are moving through Union Square Station again. The agency classified the incident as high severity, suggesting significant operational impact during the disruption period. Specific details about how long service was suspended weren't immediately available. Transit officials said residual delays will continue as the system works to return to normal scheduling, though they didn't provide a timeline for when regular service intervals would fully resume.
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Timeline of Disruption and Recovery

The step issue occurred on February 2, 2026, prompting transit officials to halt northbound service at Union Square Station. Officials didn't specify what time the disruption began or how long repairs took to complete. The agency announced service restoration after the issue was resolved, though the exact timeline from disruption to full reopening wasn't provided. Transit agencies typically conduct safety inspections following mechanical failures before allowing trains to resume normal operations.

Rider Impact and Service Information

Commuters using the northbound Central Subway are advised to allow extra travel time until service fully stabilizes. The disruption affected riders traveling from stations south of Union Square toward Chinatown-Rose Pak Station, the line's northern terminus. Officials said the situation has been cleared but didn't specify how long residual delays might persist. Moovit provides real-time updates for San Francisco Muni routes, including Central Subway service status and alternative routing options during disruptions.