According to this article, the Webster and Posey Tubes to and from Oakland will be closed Monday and Tuesday night this week so they can be inspected. This after a chunk of concrete fell off the ceiling last week.
The Webster Tube from Oakland to Alameda was shut down on Sunday after an 8-foot-by-8-foot chunk of decorative concrete fell onto the roadway about 6 p.m. According to Caltrans no one was injured, and the tube was reopened in time for this morning’s commute. Details here. Last Thursday, the parallel Posey Tube, which moves trafffic from Alameda to Oakland, was shut down for a bus accident.