Building 3 was the Gatehouse, this also included the security fence. The gatehouse was a one-story, building located on an island in the center of the entrance roadway. There was a boiler in the basement of the gatehouse that provided steam for heat. The security fence was a chain link fence surmounted with barbed wire, with seven locking gates that extended at a minimum of within the property line of the base, along State Highway 218. Building 3A was the Guardhouse. This was a one-story, , building with a wide porch on two sides.