In 1989, the Loma Prieta earthquake severely damaged the Bay Bridge. At the time, California's leading engineers said it was a "powerful warning" that the bridge needed to be made earthquake safe. Their report was called "Competing Against Time." Twenty years later, a new span that is a ...
Notably, both the Loma Prieta earthquake of 1989 and the 1906 earthquake were caused by breaks along thesame fault line. The "Bay Bridge World Series" Earthquake This is a newer photo, but will give you an idea of what was happening when the 1989 earthquake hit, right before Game 3 start...
Early on, some in California saw the Bay Bridge project — necessitated when the existing bridge was damaged in the 1989 Loma Prieta earthquake — as a potential job creator. Flush with wealth from the dot-com bubble, the state and Bay Area leaders mandated the new bridge be “iconic” in...
The San Francisco Bay Area was celebrating on October 17, 1989, as both home teams faced off against each other in Game 3 of theWorld Series, the Battle of the Bay. The mood lasted until 5:04 p.m. when theLoma Prieta earthquake, a magnitude 6.9, shook for 20 seconds and changed the...
The old cantilever bridge, built in 1936 to connect Oakland to Yerba Buena Island, has been slated for replacement since the 1989 Loma Prieta earthquake collapsed a section of the span's upper deck. After years of delays, it is finally closing to traffic forever at 8 p.m. Wednesday and ...
It is an awkward web of cantilevered steel, and its only moment of fame came when a section collapsed during the 1989 earthquake.In the decade since, a bold vision to replace the bridge emerged: a single white tower, suspending the thin ribbon of an eight-lane highway beneath arcing ...
The chronology begins in 1929, but emphasizes the period from 1989 to the present, beginning with the Loma Prieta earthquake of October 1989. That earthquake revealed the seismic vulnerability of the Bay Bridge. This timeline focuses on the efforts to seismically retrofit the Bay Bridge, especially...
Bay Bridge after the San Francisco–Oakland earthquake of 1989Aerial view of the collapsed section of the Bay Bridge following the San Francisco–Oakland earthquake of 1989.(more) Since the 1906 earthquake, seismologists and engineers have warned that it could happen again. Several relatively strong...
Bay Bridge, complex crossing that spans San Francisco Bay from the city of San Francisco to Oakland via Yerba Buena Island. It consists of two end-to-end suspension bridges, a large-bore tunnel, a cantilever bridge, and a viaduct. It is one of the preemi
Earthquake damage and subsequent upgradesDuring the October 17, 1989, Loma Prieta earthquake, which measured 6.9 on the moment magnitude scale,[27] a 50-foot (15 m) section of the upper deck of the eastern truss portion of the bridge at Pier E9 collapsed onto the deck below, indirectly ...