Metro warned riders of the Red Line to allow for extra time to get to work Thursday, as single-tracking continued between the Twinbrook and Grosvenor stations.
The warning follows hours of single-tracking on the line that led to delays and packed platforms Wednesday.
Metro tweeted Thursday morning that work had continued to fix the track overnight, and they were preparing a test train to see if the track could be put back into service.
"For now, good idea to plan on some extra time on Red Line this AM," @Metrorail tweeted.
The problem is due to a "slippery rail" problem. A foam-filled tire on a piece of equipment used during overnight construction created a slick surface on the rails, Metro said.
A track problem near the Grosvenor station had also caused delays of as much as 30 minutes Wednesday morning.
Stay with News4 and NBC Washington for more on this developing story.
Photo Credit: @neokastron (Source)
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