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Timeline for Amtrak track work causing MARC delays extended to Dec. 24

The delays on MARC trains in Baltimore will now continue through Dec. 24

Riders of MARC passenger trains through Baltimore should now expect delays from emergency work in the Baltimore & Potomac Tunnel to last until Dec. 24, the Maryland Transit Administration said Wednesday.

The emergency work was announced earlier this week, after passenger and freight trains began single-tracking through the nearly 150-year-old tunnel under West Baltimore because of damage to one of two tracks that pass through it.

Amtrak said the damage was caused by "excessive water infiltration" into the tunnel, which is being studied for replacement.

The MTA initially said repairs would last until Wednesday, but on Wednesday said they would continue through next week as crews work in the tunnel.

"Amtrak is putting all available resources into this emergency track work, however, a study of the work area ... found that the damage was more significant than first thought," the MTA said.

Delays of 10 to 25 minutes on peak hour MARC trains and of 5 to 10 minutes on midday MARC trains are likely, the MTA said. Also, Train 428, which departs Union Station in Washington at 4:10 p.m., will stop service in Odenton. Train 447, which departs Penn Station at 5:50 p.m., will be canceled.

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