Alameda, California

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Bay Farm Island Bicycle Bridge (Alameda County, California)
Built 1993
Modern Pratt pony truss bascule drawbridge over San Leandro Bay on Bike Traffic
Open to pedestrians only

Bay Farm Island Bridge (1898) (Alameda County, California)
Built 1898; replaced 1953
Lost Polygonal Warren through truss bridge over San Leandro Bay on Bay Farm Island
Replaced by a new bridge

CPRR - Alice Street Drawbridge (Alameda County, California)
Built 1873; Replaced 1898 by the Harrison Street Bridge
Howe through truss bridge over Oakland Estuary on Central Pacific Railroad
Replaced by a new bridge

Harrison Street Bridge (Alameda County, California)
Built in 1898; Removed 1924
Lost Pratt through truss bridge over Oakland Estuary on Harrison Street & Southern Pacific Railroad
Removed

High Street Bridge (1901) (Alameda County, California)
Built 1901; Replaced in 1939
Lost Pratt through truss bridge over Oakland Harbor on High Street
Replaced by a new bridge

IER - Oakland Estuary Bridge (Alameda County, California)
Coverted from railroad-only to road vehicle usage in 1951. Replaced by a new bridge in 1974.
Lost Through truss bridge over Oakland Estuary on Interurban Electric Railway
Replaced by a new bridge

Miller-Sweeney Bridge (Alameda County, California)
Constructed 1974
Bascule over Oakland Estuary on Fruitvale Avenue
Open to traffic

Park Street Bridge (1891) (Alameda County, California)
Built 1891, replaced 1934
Lost Through truss bridge over Oakland Harbor on Park Street
Replaced by a new bridge

Posey Tube (Alameda County, California)
Built 1927, seismic retrofit 2000
Immersed Tube tunnel under Oakland Inner Harbor on State Route 260


UP - Inner Harbor Bridge (Alameda County, California)
Built 1951; Union Pacific stopped all service in 2001 and abandoned the line in 2012.
Vertical lift bridge over Oakland Estuary on Alameda Belt Line/Union Pacific
Intact but closed to all traffic

Webster Street Drawbridge (1871) (Alameda County, California)
Built 1871; Replaced 1898
Lost Through truss bridge over Oakland Harbor on Webster Street
Replaced by a new bridge

Webster Street Drawbridge (1898) (Alameda County, California)
Built 1898; Removed 1926
Pratt through truss bridge over Oakland Harbor on Webster Street
Replaced by a new bridge

Webster Street Tube (Alameda County, California)
Built 1963
Tunnel under Oakland Inner Harbor on State Route 260, Webster Street
Open to traffic