Key System

Beach Street Bridge (Alameda County, California)
Slab bridge over ??? (Nee Sacramento Northern Railway) on Beach Street/Oakland Terminal Railway (Nee Key System)
Open to traffic

San Francisco-Oakland Bay Bridge (San Francisco County, California)
Built 1936; rehabilitated 1962; partial collapse 1989; west span siesmic retrofit 2013; east span replaced 2013.
Suspension bridge over San Francisco Bay on I-80 connecting San Francisco, Yerba Buena Island, and Oakland
Open to traffic