Historic Bridges of the U.S.

Middle River Bridge (San Joaquin County, California)
Built 1915; rehabilitated 1975
Through truss bridge over Middle River on CA 4
Open to traffic

Old River Bridge (San Joaquin County, California)
Built 1915; rehabilitated 1978
Swing bridge over Old River on CA 4 in Discovery Bay
Open to traffic

San Joaquin River Bridge (San Joaquin County, California)
Built 1933
Through truss bridge over San Joaquin River on CA 4 in Stockton
Open to traffic