Archaeological Investigations Northwest, Inc.

Providing archaeological and historical services throughout Oregon, Washington and Idaho.

3510 N.E. 122nd Ave.
Portland, OR 97230
Phone: 503-761-6605
Fax: 503-761-6620

Vancouver, WA
Phone: 360-696-7473

Email Us

Services Offered

AINW assists clients with an integrated approach for cultural resource project compliance at the federal, state, and local levels.  AINW’s depth of experience helps clients navigate the often times complex regulatory landscape which is governed by:

  • Section 106 (National Historic Preservation Act)
  • National Environmental Policy Act (NEPA)
  • Department of Transportation Section 4(f)
  • State regulatory compliance requirements, including SEPA
  • Local regulatory compliance requirements, including archaeological predeterminations
  • Columbia River Gorge National Scenic Area Management Plan

AINW’s team of skilled professionals meets or exceeds the Professional Qualification Standards of the Secretary of Interior’s Standards and Guidelines for Archaeology and Historic Preservation.  Our highly qualified professionals are supported by other full-time staff that specialize in document and graphics production, laboratory processes, mapping, and Geographic Information Systems (GIS) data analysis.


AINW also provides the following range of studies:

  • Cultural Resource Studies
    • Cultural resource inventories, overviews, and planning documents
    • Historic structures inventories
    • Records Reviews
    • Management Plans
    • Ethnographic Studies
    • Native American coordination, collaboration, and assistance with consultations
    • Compliance documents
      • Memorandum of Agreements (MOA)
      • Programmatic Agreements (PA)


  • Archaeological Services
    • Surveys and inventories
    • Reconnaissance
    • Archaeological surveys
    • Site testing and evaluation
    • Data recovery excavations
    • Site treatment plans
    • Management plans
    • Monitoring plans
    • Construction monitoring and emergency archaeology
    • Human osteology
    • Faunal analysis
    • Laboratory processing, records, data, and artifact curation
    • Archaeological monitoring of construction
    • Historical artifact identification
    • Geoarchaeology
    • Lithic Technology
    • Blood Residue Analysis
    • Graphics/GIS
  • spacer Architectural History and Historical Services
    • Architectural History
      • Historic resources surveys
      • Historical archaeology
      • Historic properties treatment plans
      • Determinations of National Register of Historic Places (NRHP) eligibility
      • Findings of effects documentation
      • Mitigation documentation
      • HABS/HAER documentation
      • Federal tax incentive programs for income-producing buildings eligible for NRHP listing
    • Historic Research
      •  Historic contexts
      • Archival records review is neither affiliated with the authors of this page nor responsible for its contents. This is a safe-cache copy of the original web site.