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

presentation begins:  7:11
Q&A begins:  45:32 

Webinar Documents:
Presentation Slides:  Presentation Slides November 2024
Intro and News Slides:  Intro and News Slides November 2024
Q & A:  Q & A November 2024

Description:
Accelerated Bridge Construction has been in use in the United States for over 30 years.  Engineers sometimes express concerns with the durability of ABC technologies, especially with connections between precast elements.  Bridge decks are exposed to some of the most challenging environments, especially in northern regions that use significant de-icing chemicals.  The webinar will focus on the long-term performance of deck level connections used in ABC including post-tensioned deck panels, longitudinal closure joints, and link slabs.  Three projects and 9 bridges will be highlighted with ages ranging from 13 to 35 years.  The current conditions of these bridges will be presented along with lessons learned for future projects.

 Presenter:

 

 

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

Mike Culmo is a Bridge Engineer with 41 years of experience in bridge and highway design.  He has extensive experience in the design of steel, concrete, and prestressed/precast concrete bridges, and has been responsible for managing design teams on new expressway bridges, highway interchanges, and bridge rehabilitation projects.  He is the author of numerous national publications and manuals on bridges and was the principal author of the 2018 AASHTO LRFD Guide Specifications for ABC.  Mr. Culmo holds a bachelor’s degree in Civil Engineering and a master’s degree in Structural Engineering, both from the University of Connecticut.

1) Construction of the 93Fast14 Project, Medford, MA

2) Link slab on the 93Fast14 Project, Medford, MA.  13 years in service with ADT of 175,000

3) Longitudinal Closure Joint on the 93Fast14 Project in Medford, MA.  13 years in service with ADT of 175,000

4) Construction of the I-84 Ramp Bridge in Waterbury, CT, Full Depth Deck Panels with Longitudinal Post-tensioning, built in 1990

5) I-84 Bridge in Waterbury, CT, Full Depth Deck Panels with Longitudinal Post-tensioning, built in 1990, conditions after 20 years in service