Fort Barry, Bonita Ridge Access Road, Retaining Wall, Point Bonita, Marin Headlands, Sausalito, Marin County, CA

Significance: The Retaining Wall is important for its support role in the seacoast defenses of the San Francisco Bay. It is a contributing element to the Forts Baker, Barry, and Cronkhite National Register Historic Dsitrict. The retaining wall functioned as a physical support for the former tramway hoist engine house, which aided in the transportation of construction materials to Point Bonita for the construction of Point Bonita Military Reservation's (Fort Barry) batteries and post buildings between 1901 and 1910, and later for the Signal Corps Radar 296 Station 5 Transmitter Building (HABS CA-2794-A) during WWII.
Survey number: HABS CA-2794-B
Building/structure dates: after. 1940- before. 1943 Initial Construction
National Register of Historic Places NRIS Number: 73000255