Public Announcements


ACI Missouri Chapter announces Karin O'Brien as Executive Director

ST. LOUIS, MO—January 25, 2021—The Missouri Chapter of the American Concrete Institute today announced Karin O’Brien, PE, LEED AP as its next Executive Director.  O’Brien will succeed Luke Snell, PE, who has retired after nearly five years of serving the organization as Executive Director and decades as a member of the Missouri Chapter. 

Prior to joining ACI Missouri, O’Brien has served the concrete industry for over 15 years specializing in materials (cement and aggregate production) and concrete materials testing in the US and Mexico.  She also has been involved in many local chapters throughout her career, having affiliation with the Rocky Mountain, Greater Michigan, Illinois and Central y Sur de Mexico Chapters through the years.  Since 2017 she has also been assisting ACI Missouri as Marketing Director, working through a rebranding and website redesign.

“Karin is a positive and energetic leader!  Her warmth, and practical approach to problem solving and enthusiasm for the concrete industry - particularly in education and certification is a great addition to our organization.” stated ACI Missouri President, Dane Shaw.  “The board is excited to work with Karin as our new Executive Director and confident ACI Missouri will continue to increase engagement and grow in the greater Missouri area.”

“I am beyond excited to be part of the Missouri ACI team,” said Karin O’Brien.  “The organization has such a strong legacy of certification, scholarship and education. I look forward to expanding those institutions into the future and expanding how we serve the concrete community in Missouri.”O’Brien received a BSE in Chemical Engineering from the University of Michigan and is a licensed Professional Engineer in the state of Illinois.

The Missouri Chapter is dedicated to encouraging the objectives for which the American Concrete Institute (ACI) was organized: to further engineering & technical education, scientific investigation & research and development of standards for design & construction of concrete structures.This Chapter operates to support students, engineers, contractors and material suppliers in the concrete industry. The Chapter provides ACI Certification, seminars on concrete related issues and financial support for Students, Students Chapters and ACI International. We also support related organizations within the industry. To  learn more about ACI Missouri, visit 

Missouri Chapter ACI
7827 Town Square AveSuite 104-1039
O’Fallon, MO 63368
[email protected]

L to R Dimitri Feys (ACI Missouri Vice President), Karin O'Brien (ACI Missouri Executive Director), Dane Shaw (ACI Missouri President) in front of the sculpture Mix (Americana), 2013 by Brazilian artist ALEXANDRE DA CUNHA at Laumeier Sculpture Park in St. Louis, MO.