The deadliest bridge disaster in US history was caused by a tiny crack just three millimeters deep | by Matt Reimann | Timeline
harlene Wood was driving home at 5 p.m. on December 15, 1967, when she felt Silver Bridge shake. The bridge, built in 1928, spanned the Ohio River between Ohio and West Virginia, and served 4,000 vehicles every day. On this cold Friday, a single eyebar — a 55-foot-long section of steel, two inches thick and 12 inches wide — had suddenly fractured. Then the pin holding it in place fell loose, sending the bridge’s components into catastrophic failure. “It was like someone had lined up dominoes,” Wood recalled. “I could see car lights flashing as they were tumbling into the water. The car in front of me went in. Then there was silence.”