The California Department of Transportation closed two lanes on the westbound upper deck of the Bay Bridge for inspections overnight Saturday, an inspection plan that will continue one night each weekend through the fall.
The lane closures on the eastern span of the bridge will allow engineers to inspect steel structural supports, known as eyebars, on the cantilever portion of the bridge linking Yerba Buena Island and the Oakland shore, Caltrans officials said.
The work will be focused on repairs made after crews found a cracked eyebar while inspecting the bridge during construction on Labor Day weekend.
That eyebar was repaired, and crews will be inspecting it and adjacent eyebars over the next several weeks as a precaution, according to Caltrans spokeswoman Lauren Wonder.
"The bridge is safe," Wonder said.
Saturday night's closures of the two left lanes were began at 11 p.m. and continued until 9:30 a.m. Sunday. Electronic message signs directed drivers around the area where crews were working.
Future closures are planned on either Saturday or Sunday night each weekend through the fall.
Crews will be assessing the repairs each weekend to determine how much longer the inspections will be necessary, Wonder said.