The Ohio company that supplied the bolts that cracked on the new eastern span of the Bay Bridge said the parts supplied to Caltrans met industry specifications when they were delivered.
The bridge that collapsed Thursday in Washington State was considered functionally obsolete by the federal government, a designation also carried by several Bay Area spans.
The fix for the broken bolts includes implementing steel saddles on the span.
Caltrans is preparing to test the integrity of seismic sheer bolts on the new eastern span of the Bay Bridge as crews prepare for a massive repair job where dozens of those bolts have already cracked, officials said Friday.
Emails show that Caltrans was persuaded to use questionable bolts on the Bay Bridge, after a supplier pointed out that they were already in use at the Richmond-San Rafael Bridge.
An internationally-known expert who serves as a Caltrans adviser says the agency needs to examine hundreds of at-risk rods on the new eastern span of the Bay Bridge and replace any that are hard enough to be vulnerable to cracking.
Thousands of steel tendons used to strengthen the skyway portion of the new eastern span of the Bay Bridge were exposed during construction to rainfall and salty bay mist.
The new $6.3 billion eastern portion of the San Francisco-Oakland Bay Bridge still “has a fighting chance” to open this year, despite concerns over structural issues, officials overseeing its construction said Tuesday.
The Federal Highway Administration said Monday that it had launched a probe into why seemingly undesirable bolts were used on portions of the new eastern span of the San Francisco-Oakland Bay Bridge.
A state transportation official says a planned repair for seismic safety rods that snapped on the new span of the San Francisco-Oakland Bay Bridge could cost between $5 million to $10 million.