the trains during power outages is on display at the Redwood Valley Railway. It had a brief stint on the currently re-constructing Virginia and Truckee Railroad in Virginia City, Nevada. Here, the mountain grades proved too taxing for the little locomotive. It was later replaced by 2–8–0 Steam locomotive No. 29. Although built by the Southern Pacific Railroad, the Key System inherited the Northbrae Tunnel right-of-way, which it operated from 1942 through 1958. It was converted to street use and opened to auto traffic on December 15, 1962. Located at the former Oakland Army Base site, The Interurban Electric Railway Bridge Yard Shop Building, was used as a maintenance facility for the Key System electric trains. Today, the building is now known as the Bridge Yard Building and is used as a venue for events. A substation located at the site also provided electrical power to all the Key System trains. The site of the Interurban Electric Railway Bridge Yard Shop Building, as well as former Oakland Army Base, is now the Judge John Sutter Regional Shoreline park. The park opened on October 21, 2020, and is located at the foot of the Bay Bridge. See also Ferries of San Francisco Bay References Bibliography External links General Archive.org, The Key System presents: The March of Progress (1945 documentary) Snowcrest.net, Stills from the documentary Oberail.org, Oakland Berkeley & Eastern OaklandWiki.org, OaklandWiki – Key System description and system maps Historic American Engineering Record (HAER) documentation: Pictures 1100 Broadway, Proposed redevelopment of former headquarters building ModelSmith.com, "Key System #182 sitting in the car barn at the Western Railway Museum", September 1990 AlamedaInfo.com, A Key System bridge unit in Oakland, 1954 Bayarearailfan.org, A gallery of Key System images Keyrailpix.org, image gallery Museumca.org, Postcard: Key Route Pier NYCsubway.org, Images CDlib.org, Photo: Key System train on Key Mole adjacent to new Bay Bridge, 1936 Key System train on the ramp to the Bay Bridge from the Transbay Terminal in San Francisco, 1939, Dorothea Lange photo Defunct California railroads Electric railways in California Interurban railways in California Passenger rail transportation in California Defunct public transport operators in the United States Historic American Engineering Record in California History of Oakland, California History of Alameda County, California History of Contra Costa County, California Rail transportation in Oakland, California Transportation companies based in California History of San Francisco Public transportation in Alameda County, California Public transportation in Contra Costa County,