This certifies that
there
attended the One-Hour Technical Presentation,
I-155 / US 412 Bridge over Mississippi River Scour Countermeasures Background and Technical Presentation,
presented by Contech Engineered Solutions LLC on Wednesday, September 21, 2021.
This program covered technical issues relevant to the engineering profession as outlined below:
Program Sponsored by: Contech Engineered Solutions
Presented by: Aaron Clauson, P.E.
Discussion Included: Case study for evaluation of scour countermeasures on Mississippi River
Duration: 1.0 hours
Aaron Clauson, P.E.
Bridge Consultant
Bridge Consultant