The San Francisco–Oakland Bay Bridge suffered severe damage, as a 76-by-50-foot (23 m × 15 m) section of the upper deck on the eastern cantilever side fell onto the deck below.
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One person was killed when a portion of the upper deck of the Bay Bridge–which had been scheduled for a retrofitting the following week—collapsed onto the lower level.
The Bay Bridge had lost one section of the upper deck during the quake and was closed for about a month while the California Department of Transportation made repairs.
In the 1989 Loma Prieta earthquake, one section of the upper deck of the Bay Bridge's eastern span collapsed onto the lower deck. The bridge was closed for repairs for a month.
On October 17, 1989, a magnitude 6.9 earthquake hit the San Francisco Bay Area, killing 67 people and causing more than $5 billion in damages. On October 17, 1989, a magnitude 6.9 earthquake hit the San Francisco Bay Area, killing 67 people and causing more than $5 billion in damages.
The focal depth was 11 miles (typical California earthquake focal depths are 4 to 6 miles). Loma Prleta ruptured the southernmost 30 miles of the break that caused the 1906 San Francisco Earthquake.