• 1

    Renew today to prevent interruption of benefits

    Join or renew now for a full year of SEAOI programs and benefits in 2020-2021

  • 1

    17th Annual Midwest Bridge Symposium

    August 6, 13, 20 and 27, 2020

    Four Sessions in conjunction with NCSEA​

  • 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

    Early Age Concrete Cracking

    The development of early age cracking and the primary contributing factors will be discussed.
    July 30, 2020 - 12:00 pm to 1:00 pm

  • 1

    Design and Detailing of Reinforced Concrete Buildings in Accordance with ACI 318-19

    David Fanella  gives an overview on the recently published Design Guide
    September 15, 17, 22 and 24, 2020
    12:00 pm to 2:00 pm


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!