<P> The bridge consists of two crossings , east and west of Yerba Buena Island , a natural mid-bay outcropping inside San Francisco city limits . The western crossing between Yerba Buena and downtown San Francisco has two complete suspension spans connected at a center anchorage . Rincon Hill is the western anchorage and touch - down for the San Francisco landing of the Brown bridge connected by three shorter truss spans . The eastern crossing , between Yerba Buena Island and Oakland , was a cantilever bridge with a double - tower span , five medium truss spans , and a 14 - section truss causeway . Due to earthquake concerns , the eastern crossing was replaced by a new crossing that opened on Labor Day 2013 . On Yerba Buena Island , the double - decked crossing is a 321 - foot ( 98 m ) concrete viaduct east of the west span 's cable anchorage , the 540 - foot ( 160 m ) Yerba Buena Tunnel through the island 's rocky central hill , another 790.8 - foot ( 241.0 m ) concrete viaduct , and a longer curved high - level steel truss viaduct that spans the final 1,169.7 feet ( 356.5 m ) to the cantilever bridge . </P>
<P> The bridge consists of two crossings , east and west of Yerba Buena Island , a natural mid-bay outcropping inside San Francisco city limits . The western crossing between Yerba Buena and downtown San Francisco has two complete suspension spans connected at a center anchorage . Rincon Hill is the western anchorage and touch - down for the San Francisco landing of the Brown bridge connected by three shorter truss spans . The eastern crossing , between Yerba Buena Island and Oakland , was a cantilever bridge with a double - tower span , five medium truss spans , and a 14 - section truss causeway . Due to earthquake concerns , the eastern crossing was replaced by a new crossing that opened on Labor Day 2013 . On Yerba Buena Island , the double - decked crossing is a 321 - foot ( 98 m ) concrete viaduct east of the west span 's cable anchorage , the 540 - foot ( 160 m ) Yerba Buena Tunnel through the island 's rocky central hill , another 790.8 - foot ( 241.0 m ) concrete viaduct , and a longer curved high - level steel truss viaduct that spans the final 1,169.7 feet ( 356.5 m ) to the cantilever bridge . </P>
what is the name of the island east of the bridge in san francisco bay
what is the name of the island east of the bridge in san francisco bay
Yerba Buena Island
Yerba Buena Island