National Historic Preservation Act (NHPA): Developing necessary NHPA documentation, collaborating with agencies such as the lead federal agency, Native American tribes, state agencies, the State Historic Preservation Office (SHPO), USACE, and USFWS to obtain essential reviews and guidance, while coordinating a multidisciplinary team. Field Investigations: Completing or coordinating fieldwork with Olsson staff or sub-consultants, including archaeological surveys, test excavations, and the documentation of above-ground historic resources such as buildings, roadways, bridges, and historic districts.