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TRB Webinar: T-1 Steel, I-40 Bridge, and the Way Forward


Date(s)
November 10, 2022 12:00 PM - 01:30 PM U.S. Eastern
Cost (for your seat)
$100.00
Professional Development Hours for this webinar
1.50 hour(s)
Continuing Education Hours for this webinar
AAE: 0.00 hour(s)
AICP: 0.00 hour(s)
CLE: 0.00 hour(s)
Details

On May 11, 2021, a partial fracture was discovered on one of the two tie girders on the Hernando de Soto Bridge. This four lane, 900 foot main span bridge carries traffic across the Mississippi River between Memphis, Tennessee and West Memphis, Arkansas. This finding required an immediate river and road closure. TRB hosted a webinar on Thursday, November 10, 2022 from 12:00 PM to 1:30 PM Eastern that shared the response to this event, which included a special inspection, analysis, development of analytical models, and repair plans. Presenters discussed the Federal Highway Administration (FHWA) directives regarding the inspection and testing of butt welds fabricated from AASHTO M244 Grade 100 steel, more commonly known as “T-1” steel. Presenters also discussed recommendations for addressing the FHWA directive testing requirements.

This webinar was sponsored by the TRB Standing Technical Committee on Steel Bridges.

The slides and recording are available. 

 

Webinar agenda and presenters

  • I-40 bridge response and analysis – Jason Stith, Michael Baker International
  • I-40 bridge response testing and lessons learned – Curtis Schroeder, Wiss, Janney, Elstner Associates, Inc.
  • FHWA directive on T-1 steel – Derek Soden, FHWA
  • Question and answer session moderated by Rob Connor, Purdue University

The first 60 minutes of the webinar will be for presentations and the final 30 minutes will be reserved for audience questions.

 

Learning Objectives

At the end of this webinar, participants will be able to:

  • Identify T-1 steel and the importance of the FHWA directive
  • Summarize lessons learned from a response to a partial fracture on a high traffic bridge
  • Explain the testing and repair of the I-40 bridge and takeaways from the event

 

Professional Development Hours

Professional Development Hours (PDHs) earned on completion of this program were reported to the Registered Continuing Education Program (RCEP). Certificates of Completion are issued to all participants via the RCEP.net online system. Complaints about registered providers may be addressed to RCEP, 1015 15th Street, NW, 8th Fl., Washington, DC, 20005.