• 1

    February 2021 Dinner Meeting

    How Structural Engineers Can Design Themselves a Better Foundation Through Their Services Agreements
    February 2, 2021
    5:30pm to 6:30pm

  • 1

    Designing Aluminum Structures

    Four part seminar about structural aluminum alloys used in civil construction
    February 2, 9, 16 & 23, 2021
    12:00 pm to 2:00 pm

  • 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

    Post-tensioned Concrete with Bridges

    Four part seminar about post-tensioned concrete with bridges
    February 17 & 24, 2021 and March 3 & 10, 2021
    12:00 pm to 2:00 pm

  • 1

    New Webinars Available!

    SEAOI is pleased to offer several recorded lectures and classes for CE credit. Six 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!