Berkeley Hills Tunnel[Map · Street View] Tunnel under Berkeley Hills on BART (Bay Area Rapid Transport) Open to traffic Bore completed in 1967, Open for revenue in 1973 they run just north of the Caldecott tunnels
Leimert Bridge[Map · Street View] Concrete arch bridge over Diamond Canyon in Oakland, California; carries Leimert Boulevard over canyon. Open to traffic Built 1926 to promote real estate development on south side of canyon.
Mac Arthur Blvd. Bridge[Map] Concrete arch bridge over San Leandro Creek on Mac Arthur Blvd. in San Leandro Open to traffic Built 1909; rehabilitated 1934
NCRy - Arroyo de Laguna Bridge[Map · Street View] Pony/through plate girder bridge over Arroyo de Laguna on Niles Canyon Railway (NCRy) Open to traffic An original portion of the first transcontinental railroad line first constructed during the 1860's.
NCRy - CA238 Overpass[Map] Lost Girder bridge over CA 238 on Niles Canyon Railway/Union Pacific Railroad Replaced by a new bridge Built 1937; Replaced 2006
NCRy - Farwell Bridge[Map · Street View] Pratt through truss bridge over Alameda Creek (also CA 84) on Niles Canyon Railroad (NCRy) Open to traffic Built in 1865-66 as part of the original transcontinental railroad by the Western Pacific RR as part of the line form Sacramento to San Francisco. The WPRR was engulfed by the Central Pacific RR in 1867 and eventually folded into the Southern Pacif .
Posey Tube[Map · Street View] Immersed Tube tunnel under Oakland Inner Harbor on State Route 260 Built 1927, seismic retrofit 2000
San Francisco-Oakland Bay Bridge[Map · Street View] Suspension bridge over San Francisco Bay on I-80 connecting San Francisco, Yerba Buena Island, and Oakland Open to traffic Built 1936; rehabilitated 1962; partial collapse 1989; west span siesmic retrofit 2013; east span replaced 2013.