Railroad track maintenance and repairs are expected to slow trains and throw off schedules through the end of the year.

More than 45,000 track ties are being replaced along the 72-mile route that runs between and along the west side of Interstate 95, beginning Wednesday and through December, according to Tri-Rail officials.

The delays are anticipated due to speed restrictions and having trains use a single track to allow the work.

Tri-Rail trains are expected to run about 20 minutes behind schedule during the track maintenance.

The delays follow a summer of record-setting on-time performances by Tri-Rail, with nearly 97 percent of its trains arriving on schedule.

Passengers can download the Tri-Rail app or visit to monitor train times, or call customer service at for the latest service updates.

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