Name: American Plaza TowersAddress: 2309 SW 1st Ave, Portland, OR 97201 City: PortlandYear of Construction: 1972 -1980Architect: Travers/Johnson Architects Original Use: Residential (condominium)National Register of Historic Places: Not listedDescription: Via the City of Portland, Bureau of Development Services: “Lincoln Tower and Grant Tower, are 18 and 26 stories tall, respectively, and comprise two…