The San Francisco Bay Bridge could be closed for days after a repair made to the span over Labor Day Weekend failed. Pieces of the repair snapped off and fell on cars last evening, forcing authorities to shut down the bridge. To fix the problem, CalTrans is proposing a "very similar" repair, according to the Chron. But that's hardly reassuring, considering that after the repairs were made last month, officials declared that "everything went perfect." BART will be running extra trains while crews scramble to fix the bridge again.