BART trains resumed normal service Saturday morning after electrical issues caused major delays and limited Transbay Tube service all day Friday.

Commuters on Friday had dealt with major delays throughout the system after a train lost power in the tube about 7:11 a.m. The train was moved out and passengers were evacuated just after 8:30 a.m., but the power issues remained, forcing trains to use only one track int he tube throughout the day.

Passengers had to endure long waits, transfer trains more frequently, use bus bridges and ferries to travel to their destinations.

In a statement Friday afternoon, BART officials said an electrical overcurrent had caused a breaker to trip offline. The failure took took a segment of rail in the tube out of service, the agency said. As a result, they said riders experienced delays of at least 30 minutes.

BART officials first announced Friday afternoon that the power problem would require crews to work on the tube overnight, and that service would be affected “at least” through the end of the Friday schedule, However, they said just before 11 p.m. Friday — well before the end of service — that the issue had been resolved.

It was not clear Saturday why BART’s original estimate had been incorrect.

Check back for updates.

Source: www.mercurynews.com