San Francisco officials have temporarily shut down the city's huge new transit center after a crack was spotted in a steel beam in the ceiling. Structural engineers are now inspecting all the beams in the Salesforce Transit Center — which opened just a month ago, at a cost of more than $2.1 billion.
The crack was discovered early Tuesday, but the shutdown wasn't ordered until hours later, forcing more than 30 bus lines to be redirected as the afternoon rush hour began. A key underpass along the side of the building was also closed, snarling area traffic.
"Motorists are kindly asked to avoid driving downtown," the Transbay Joint Powers Authority said Tuesday, adding that "transit riders are encouraged to allow extra time for their commute."
The closure is in effect "until further notice," the San Francisco Municipal Transportation Agency says.