Category: Monthly Webinar Steel Bridge Rehabilitation Using UHPC to Repair Corroded Steel Beam Ends

December 14, 2023 1:00 pm

Michael P. Culmo, P.E., Chief Bridge Engineer, CHA Consulting, Inc.; Alexandra Hain, PhD, P.E., Assistant Professor, Department of Civil & Environmental Engineering, University of Connecticut

Webinar Documents:
IBT ABC FIU December 2024 Monthly Webinar - UHPC Beam End Webinar Presentation Slides - pdf of presentation slides
News - December 14, 2023 - pdf of news slides
Q&A - pdf of Questions & Answers


Rehabilitation of our aging steel bridge inventory is a common topic of discussion in the bridge community. The primary source of deterioration of steel bridge beams is leakage through failed deck joints resulting in corrosion and section loss at the beam ends.  The webinar will cover the research and implementation of an innovative, rapid and cost-effective way to repair corroded beam ends using UHPC.  The research was funded by the Connecticut DOT and undertaken by the University of Connecticut.  This resulting technology was implemented on a bridge carrying I-91 in New Haven, CT.  The presentation will include research results and lessons learned from field implementation.


Mike Culmo headshot picture

Michael P. Culmo, P.E.
Chief Bridge Engineer
CHA Consulting, Inc.

Michael P. Culmo, P.E. is a Bridge Engineer with over 35 years of experience in the design of steel, concrete, prestressed concrete and timber bridges. He is the Chief Bridge Engineer at CHA Consulting, Inc., who is responsible for the development and deployment of new technologies in the transportation market. He has special expertise is in the field of accelerated bridge construction technologies and constructability engineering. He is the principal author of numerous publications in the field of Accelerated Bridge Construction including the 2018 AASHTO LRFD Guide Specifications for Accelerated Bridge Construction. Mr. Culmo has served as an adjunct faculty member in the Civil Engineering Graduate school at the University of Connecticut and is the current Director of the Certificate Program in Bridge Engineering. Mr. Culmo holds a Bachelor’s degree in Civil Engineering and a Master’s degree in Structural Engineering, both from the University of Connecticut. He is a licensed professional engineer.

Alexandra Hain, PhD, P.E.
Assistant Professor, Department of Civil & Environmental Engineering
University of Connecticut

Dr. Hain is an Assistant Professor in the Department of Civil Engineering at the University of Connecticut. She received her PhD in Civil Engineering with a focus in Structural Engineering in May 2019 from the University of Connecticut. Her research focuses on novel construction materials, innovative inspection and repair techniques, as well as engineering education.

Presentation Photos/Graphics:

1) Section Loss at Beam End

2) UHPC Repaired Beam End (view 1)

3) UHPC Encased Beam End (view 2)

4) UHPC Beam End Repair Research (view 1)

5) UHPC Beam End Repair Research (view 2)

6) UHPC Beam End Repair Research (view 3)