300 Main Street, Suite 200, Dubuque, IA 52001
Mon – Thurs 8 am – 5 pm, Fri 8 am – 12 pm


4492 Dodge St.
Dubuque, IA 52003
(563) 468-4315
  • About

    Terracon is a 100 percent employee-owned consulting engineering firm that has been providing quality engineering services since 1965. Terracon is a successful multidiscipline firm specializing in environmental, facilities, geotechnical, and materials services for private and public sector clients. Terracon has a ranking of 30th in Engineering News-Record's 2017 listing of the Top 500 Design Firms. Terracon has over 4,000 employees in 140 offices with services available in all 50 states. Our employees provide responsive, high quality services. Safety is our highest priority.