Yong G. Lai, specialist hydraulic engineer with the Bureau of Reclamation.
Yong G. Lai, Bureau of Reclamation specialist hydraulic engineer, delivered the 2025 Hunter Rouse Hydraulic Engineering Award Lecture at the American Society of Civil Engineers conference on May 21.
Lai’s presentation, titled “Computational Hydraulics: Advances, Challenges and Future,” focused on the evolution of computational hydraulics and its role in managing water in natural and engineered systems. Drawing from decades of experience as both a model developer and practitioner, Lai shared insights into the progress, limitations, and future needs of the field.
“Numerical modeling has helped us better understand complex water systems, but it’s important to recognize its limitations and the lessons we’ve learned along the way,” Lai said during the lecture.
The session explored real-world successes and pitfalls in applying hydraulic models, addressing common misconceptions and highlighting opportunities for continued research and development. Lai emphasized the importance of engineering judgment in conjunction with model results to ensure reliable outcomes in water resource management.
Lai’s leadership has been instrumental in advancing Reclamation’s modeling capabilities, particularly in simulating river systems, dam operations, and sediment transport. His selection as this year’s Hunter Rouse Lecturer recognized his significant contributions to hydraulic engineering.
Presented annually by ASCE, the Hunter Rouse Award honors individuals who have made outstanding contributions to the field of hydraulics and waterways. Reclamation congratulates Lai on this achievement and his ongoing work to support resilient water infrastructure across the West.
