Articles in past issues of ASPIRE have highlighted the Concrete Bridge Engineering Institute’s (CBEI) launch and progress noting the emphasis on workforce development and an immersive educational experience. CBEI is continuing to deliver courses on a regular basis. Among other ongoing activities, CBEI also recently hosted participants from around the country at an inaugural CBEI conference and workshop in Austin, Texas. This event brought together many stakeholders working together to continually improve the performance and durability of concrete bridges. Today at CBEI the conversation is focused on building the next components to support the needs of the concrete bridge community.
Since the kickoff of the Transportation Pooled Fund TPF-5(508) Concrete Bridge Engineering Institute (CBEI) in June of 2023, CBEI has continued to build and develop resources including the roll-out of courses to the industry: the Concrete Materials for Bridges and the Bridge Deck Construction Inspection Course already being delivered along with the Post-tensioning Academy courses scheduled for roll-out in 2026. Other supporting pieces such as the Bridge Component Collection have continued to evolve and provide tangible concrete bridge elements for visitors and course participants to see, and use in demonstrations. CBEI’s recent activities demonstrate not only growth in participation, but also acknowledging the importance of providing tools to meet the needs of bridge professionals and how they learn, collaborate, and approach long-term infrastructure performance. The Bridge Deck Construction Inspection Course has had strong demand and received outstanding feedback on its format, delivery, and information since it was launched in 2025. CBEI recently delivered its seventh course and it is offered on an approximately monthly frequency.
The progress and many contributions of all partners to build CBEI was especially evident during the recent two-day CBEI Conference and Workshop held at the CBEI facility in Austin, Texas. A departure from many traditional conferences built around lecture sessions alone, the CBEI Conference emphasized direct engagement with interactive and hands-on demonstrations, tours, full-scale bridge components, and collaborative technical discussions. The first day was a workshop format dedicated to collaborative discussions on identifying the needs today and what can be done to address these needs going forward. One unique portion of the event on the first day was the Structural Behavior Prediction Competition. Participants evaluated a large-scale structural component and predicted how it would behave under specified loading conditions prior to testing. The exercise sparked thoughtful discussion and reinforced the value of hands-on education and physical experimentation in a profession that increasingly relies on analytical modeling and digital tools. The exercise highlighted various approaches for modeling an element’s behavior and looked estimates of capacity, deflection, and cracking. Interwoven in the discussion was a theme on levels of approximation and how they fit into the various approaches. In this context, the term “levels of approximation” is adopted from fib Model Code 2020 (MC2020). MC2020 acknowledges that all calculations are approximations to true response of a structural member. First-cut analyses may be appropriate in some cases to obtain quick estimates of capacities. Between this level of approximation (Level I) and most sophisticated/rigorous approaches (Level IV) there is additional levels of approximation that can be adopted in our calculations. This type of framework becomes especially important in evaluating the existing inventory of bridges and/or load rating efforts. The “Crack is not a Crack” article series recently featured in ASPIRE was also highlighted as part of the discussion.
The second day featured a larger group including transportation pooled fund members from departments of transportation around the country, engineers, inspectors, researchers, contractors, students, consultants, exhibitors, and industry organizations for an interactive experience focused on practical bridge engineering challenges and emerging technologies. Participants explored stations showcasing industry led training and certification programs, bridge inspection technologies, nondestructive evaluation methods, durable post-tensioning systems, concrete materials research, rehabilitation strategies, structural testing, precast technologies including precast forms, and durability-focused construction practices. By combining theoretical understanding with real-world observation, CBEI strives to create learning and collaboration opportunities that are difficult to replicate in a classroom, online platform, or conference room setting.
A few weeks prior to the CBEI conference, CBEI was also actively engaged in the Center for Transportation Research (CTR) Symposium at The University of Texas at Austin. The longstanding annual symposium serves as a major gathering point for a look at the latest initiatives in advancing transportation infrastructure through research, innovation, and implementation. The broader goal of the CTR Symposium is to connect transportation research with practical applications across multiple disciplines impacting mobility and infrastructure systems. Topics discussed during the symposium often include bridge engineering, transportation planning, pavement systems, freight mobility, intelligent transportation systems, traffic safety, autonomous technologies, construction innovation, durability, resilience, and infrastructure management. Within that larger transportation conversation, CBEI represented one of several major research initiatives demonstrating how implementation-focused collaboration can accelerate innovation and improve infrastructure performance. During the symposium, CBEI presented updates on its activities and hosted a tour of CBEI’s facilities and components. The symposium also reinforced an increasingly important reality for the transportation industry: infrastructure challenges are becoming more interdisciplinary. Bridge performance today involves more than structural design alone. Materials science, construction quality, inspection technologies, durability modeling, maintenance strategies, data collection, sustainability, and workforce development all intersect.
This is the latest article in a planned series of articles about CBEI and its impact on the engineering and construction industry. Look for more detail on the CBEI conference and Structural Behavior Prediction Competition in future articles.