Portland, OR

Portland skyline

Serving the Pacific Northwest since 1998, Terracon is an employee-owned consulting engineering firm providing environmental, geotechnical, and materials services. Our Portland, Oregon office provides consulting services to clients throughout the greater metropolitan area as well as the entire state of Oregon. We employ more than 50 professionals including engineers, geologists, scientists, technicians, inspectors, and administrative support staff ready to meet your project needs. Our staff members are committed to providing outstanding safety, quality, and exceptional experiences for our clients and the communities we serve.

  • Environmental Services
    • Environmental Due Diligence (Phase I & II ESAs)
    • Hazardous Material Assessment
    • Indoor Air Quality
    • Industrial Hygiene
    • Brownfields Redevelopment
  • Geotechnical Services
    • Subsurface Exploration and Laboratory Testing
    • Geotechnical Engineering Design
    • Construction Monitoring and Support
    • Geophysical Testing Services 
    • Solar Pile Design and Testing
  • Materials Services
    • Construction Quality Control and Quality Assurance
    • Special Inspections
    • Construction Materials Testing
    • A2LA Certificate 1002.03, WABO, and ODOT Accredited Laboratory
    • Non-Destructive Testing
700 NE 55th Ave Portland, OR 97213-3150
Phone: 503-659-3281
Fax: (503) 659-1287

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