Says bart.gov:
“Major delays through Transbay Tube for morning commute
Expect major delays of 20 to 60 minutes this morning through the Transbay Tube. We are single tracking due to damage on the third rail following a collision of rail maintenance vehicles at approximately 2 am this morning. We expect these delays to continue throught the morning commute and impact scheduled service on all lines. We are working as quickly as we can to safely restore service.”
For details on this morning’s major delay and links to transit alternatives visit bart.gov/news/articles/…
— SFBART (@SFBART) May 31, 2013