Why is it taking so long to finish the seismic-safety work?
The seismic safety work on the Bay Bridge encompasses multiple projects. Each one of these projects is extremely complex. Seismic safety work on the West Span of the bridge has already been completed, as has work on the West Approach, the 1-mile stretch of interstate highway connecting San Francisco to the bridge. The East Span of the bridge will be seismically upgraded through the complete replacement of the existing span. This involves multiple projects, including the construction of a 1.3-mile Skyway, which is completed; a Self-Anchored Suspension span consisting of a 525-foot tower supporting a bridge deck connecting the Skyway bridge to Yerba Buena Island (YBI); transition structures on YBI; and the Oakland Touchdown, the east end of the bridge connecting to the toll plaza area. One of the greatest challenges in performing any seismic safety work on the Bay Bridge is that traffic must be kept moving. This has required the construction of temporary structures, and shifting of traff
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