At 10 a.m., DART was operating its normal midday schedule after a morning power outage halted nearly 20 trains and delayed thousands of riders.
A power outage at the railyard, discovered at 5 a.m., left only 23 of 44 trains running.
Those trains were pushed to a spot on the tracks where they had power and could continue on their own. Riders were alerted to expect significant delays and full train cars.
"It's very hot. It's frustrating. Wouldn't think anything like this would happen on your first day of work. It's kind of a bad first day of work," said Donell Moreland, a DART rider who was late to his new job because of the delays at Baylor Station.
Partial power was restored at about 7:30 a.m., bringing 40-minute delays down to 20 minutes.
At 10 a.m., DART said they were once again on a normal schedule -- when fewer trains are probably on the tracks.
The power is still partially out and DART is investigating the problem. During the evening rush, DART said they will operate trains every 20 minutes through the afternoon rush and that they are continuing to put trains into service and will supplement the schedule where possible.
DART expects to operate a normal weekend schedule with regular weekday service resuming Monday morning.
NBC 5's Julie Tam contributed to this report.