Mare Island Naval Shipyard, Sentry Houses, Railroad Avenue near Eighteenth Street, Vallejo, Solano County, CA

Significance: Buildings A272 & A279, built in 1942, are considered significant for their association with U.S. Naval history and the Mare Island Naval Shipyard (MINSY), the first naval installation on the west coast. Portions of MINSY are within a National Historic Landmark. These building, however, are outside the landmark, but within the Mare Island Historic District. They were constructed for the Marine Security Detachment as gate sentry houses, guarding entry to the Naval Ammunition Depot Area. They are contributing elements of the successful base operations at MINSY and are the only examples of sentry house design, construction methods and materials used on the island during WWII.
Survey number: HABS CA-1543-CZ
Building/structure dates: 1942 Initial Construction
National Register of Historic Places NRIS Number: 96001058