Contra Costa County
Alameda Diablo Bridge [Map] Parallel railroad flatcar deck girder bridge over Dan Cook Creek on Alameda DiabloOpen to trafficBuilt about 1940, railings redone about 2005, reinforced 2014
Antioch Bridge [Map · Street View] Concrete deck girder bridge over San Joaquin River on State Route 160Open to trafficThe current bridge was completed and opened to traffic in 1978. It measures 1.8 miles (2.9 km). It replaced the original structure that was built in 1926 by Aven Hanford and Oscar Klatt, who went on to build the original span of the Carquinez Bridge.
Antioch Bridge (Old) [Map] K- through truss bridge over San Joaquin River on Route 160 Antioch Bridge former VictoryReplaced by a new bridgeBuilt 1926; Replaced 1978 BNSF/SN Overpass [Map] Beam bridge over Former Sacramento Northern Railway West Pittburgh Subway on BNSF RailwayOpen to traffic
Caballo Ranchero Bridge [Map] Parallel railroad flatcar deck girder bridge over Dan Cook Creek on Caballo RancheroOpen to trafficBuilt about 1940, reinforced 2014
Carquinez Straits Bridge (1927) [Map · Street View] Lost cantilevered through truss bridge over Carquinez Straits on Lincoln Highway, later I-80 Westbound Lanes in VallejoReplaced by new bridgeBuilt 1927; replaced 2003; demolished 2006 Civic Park Road Bridge [Map] Pin-connected Pratt through truss bridge over Walnut Creek on Civic Park RoadOpen to trafficBuilt unknown year, rehabilitated 1987
Hill Road Bridge [Map · Street View] Steel stringer bridge over Green Valley Creek on Hill RoadOpen to pedestrians onlyBuilt circa. 1970, made pedestrian-only circa. 2013
I-680 Bridge (old) [Map · Street View] Deck truss bridge over Sacramento River and railroad tracks on I-680 S in Benicia and MartinezOpen to trafficBuilt 1962; rehabilitated 1991
SN - Suisin Bay Bridge [Map] Bridge over Suisin Bay on Sacramento Northern RailwayNever builtConsruction began 1912, construction halted May 1913 because of a lack of funds
Tassajara Bridge [Map] Timber stringer bridge over Tassajara Creek on Tassajara Bridge RdOpen to trafficBuilt unknown year.
UP - Carquinez Strait Bridge [Map · Street View] Warren through truss bridge over Carquinez Strait on double track of Union Pacific Railroad in MartinezOpen to trafficOriginally built for the Southern Pacific Railroad in 1929-1930, this is the last simple truss railroad bridge built in the United States at a new location (i.e. where none had existed before).
UP/SN Overpass [Map] Beam bridge over Former Sacramento Northern Railway West Pittburgh Subway on Union Pacific RailroadOpen to traffic
Willow Pass Bridge [Map · Street View] Concrete stringer bridge on Willow Pass Road over Mount Diablo Creek, Kinne Boulevard, and RailroadOpen to traffic on Willow Pass Rd, however Railroad and Kinne Blvd are abandonedBuilt 1944