• 1

    2019-2020 Membership Is Now Open!

    Join or renew now for a full year of SEAOI programs and benefits in 2019-2020.

  • 1

    2019 Central Chapter Trade Show and Symposium

    September 26, 2019 8 am - 5 pm
    Call for Abstracts due July 22, 2019!


  • 1

    Find a Structural Engineer

    Looking for an engineer for a residential or small commercial project?  Many SEAOI members specialize in smaller scale projects!  

  • 1

    August Book Club

    August 6, 2019 - 5:30pm to 7:00pm

    30 S. LaSalle St Suite 4200
    Enrich this summer by devoting some time to your professional development!

  • 1

    9th Annual Structures Symposium

    October 24, 2019
    Call for Abstracts!


Welcome to the SEAOI website! Whether you are a practicing engineer, a curious student, or an interested citizen, you can find the information you need here. SEAOI was founded in 1965 to advance and advocate excellence in structural engineering and to aid in safeguarding the public. In 2015, we celebrated 50 years of living out our mission in Illinois.

We can win this with your help!


Have YOU written an article about your field of work? Have YOU been interviewed and quoted in an article about structural engineering? Do you wish the general public had a better understanding of how important your work is? Now is your chance to show your peers how good you are at it!

NCSEA has introduced the first-ever Public Outreach Challenge. In this Challenge, SEAOI and its members will be competing against SEAs in every other state to see who does the most and best outreach. The winning SEA will be announced at the Structural Engineering Summit this November in Anaheim, CA. LEARN MORE/SUBMIT YOUR CONTENT HERE

Calendar of Upcoming Events

You can always find the latest events listed in the column to the right, on our Events Calendar page, or, if you prefer a calendar format, on our Google calendar


Join our mailing list!

SEAOI sends a weekly Tuesday Update email, as well as selected other annoucements for special events and news affecting the engineering community.  Use the button below to sign up.  You can also indicate your interest in Bridge Events, Central Illinois activities, and Women in Structural Engineering (SEAOI WiSE).

Sign Up for Email Updates

Contact us!

Have a question about SEAOI?  Interested in getting involved as a volunteer?  Contact us!