steel structure

With fire season approaching, a Bay Area company is giving the public a glimpse of what could make things safer for homeowners in the future.

With fire season approaching, a Bay Area company is giving the public a glimpse of what could make things safer for homeowners in the future. Robert Handa reports.

More fallen concrete shut down a portion of the Richmond-San Rafael Bridge Friday afternoon, according to the California Highway Patrol.

Another falling concrete scare on the Richmond-San Rafael Bridge Friday is renewing calls to replace the crumbling span. Jean Elle reports.

The Richmond-San Rafael Bridge’s history is part of an NBC Bay Area investigation spanning more than six years into the safety and condition of California’s bridges.

NBC Bay Area first reported that the Richmond-San Rafael Bridge was problematic back in 2015, when we found it on the list of bridges that engineers have issues with. It was not formally listed as a bridge with structural deficiencies, but the rating system showed it was close. Senior investigative reporter Stephen Stock reports.

Engineering experts tell NBC Bay Area the cracks found in the Transbay Terminal superstructure appear to have started at the sharp corners of holes cut into vital steel beams during construction – edges long understood to heighten stresses in any steel structure.

Engineering Experts tell NBC Bay Area News the cracks found in the Transbay Terminal superstructure appear to have started at the sharp corners of holes cut into vital steel beams during construction – edges long understood to heighten stresses in any steel structure. Jaxon Van Derbeken reports.

Efforts to relocate protected birds so the old eastern span of the San Francisco-Oakland Bay Bridge can be torn down could cost the state more than $30 million, a newspaper said Monday.