By Katy Grimes | Cal Watchdog
The Caltrans Bay Bridge debacle is worse than just a case of embarrassment for government infrastructure projects. The bridge is unsafe, according to engineering experts across the country, after the discovery that a third of the of the 96 massive, high-strength steel rods, installed for seismic safety, cracked under pressure when the nuts affixed to the rods were tightened.
Under construction for more than a decade, the Bay Bridge project has not only taken much longer to build than planned, but cost overruns have escalated the total cost to build it to a whopping $6.4 billion. And that’s not the half of it.
According to CBS San Francisco, retired Bechtel metallurgist Yun Chung recently prepared an unsolicited 32-page report stating that Caltrans engineers “were ignorant to the threat of hydrogen embrittlement — a process in which high strength metals, such as steel, become brittle and fracture due to hydrogen exposure.” He said Caltrans “fell on its face.”