One of AECOM's core services is the survey, evaluation, and, excavation of historic archaeological sites, dating from early European contact with the New World to the recent past. AECOM maintains senior staff experienced in the study of historic period sites in rural, urban, and suburban settings, and in the analysis of their documentary records and of their material remains, whether these be the foundations of a building or the everyday objects - buttons, ceramics, children's toys - left behind or discarded by a site's former occupants. Our staff has extensive experience with federal, state, and municipal preservation laws and guidelines, and are keenly familiar with the compliance issues facing our clients in regard to historic archaeological resources.

Over the past 25 years, AECOM has investigated numerous archaeological sites dating to the historic period. These range from farmsteads, rural dwellings, taverns, and plantations, to urban residences and public buildings, to military sites and battlefields, to industrial and waterpower facilities. Among our many satisfied clients are: the Pennsylvania Department of Transportation, the National Park Service, the New Jersey Department of Transportation, the New York Metropolitan Transit Authority, the National Capital Parks and Planning Commission, and Historic St. Mary's City.