• 1

    Concrete Mix Design

    December 16, 2021 - 8:00 am to 12:30 pm
    What Engineers Need to Know About Concrete Mix Design
    Todd Nelson
    Wiss, Janney, Elstner Associates, Inc.

  • 1

    Optimizing Structural Masonry Design

    November 30, 2021 - 12:00 pm to 1:00 pm
    Jeff Diqui
    International Masonry Institute
    Tips for Optimizing Structural Masonry Design: A Series of Lessons Learned & Case Studies for Effective & Efficient Design & Construction

  • 1

    SEAOI SE Exam Refresher Course 2020-2021

    Registration Open - Recordings Available!
    Started September 27, 2021, via Zoom and On-Demand

  • 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

    New Webinars Available!

    SEAOI is pleased to offer many recorded lectures and classes for CE credit. Many are free for members and all are available on demand. Find a webinar today!


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.

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!