Bay Bridge Bolts

A key problem on the Bay Bridge’s new self-anchored suspension span: Massive steel rods designed to anchor seismic safety devices snapped  soon after the nuts were tightened early last year. (Deborah Svoboda/KQED)

A key problem on the Bay Bridge’s new self-anchored suspension span: Massive steel rods designed to anchor seismic safety devices snapped soon after the nuts were tightened early last year. (Deborah Svoboda/KQED)

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A key problem on the Bay Bridge’s new self-anchored suspension span: Massive steel rods designed to anchor seismic safety devices snapped soon after the nuts were tightened early last year. (Deborah Svoboda/KQED)