Colin Drager, PE, NCBI manages the Philadelphia-area operations for SAI Consulting Engineers, Inc. He has 17 years of structural engineering, structural inspection, and project management experience in the transportation industry. Colin holds a BS in Civil Engineering from Pennsylvania State University and is active in multiple local professional organizations.

Gregory Dunn, PE, CBSI is a technical manager for Michael Baker’s Philadelphia operations.  He has over 17 years of structural experience focusing on complex steel/concrete bridges for a variety of clients.  He earned Bachelor and Master degrees from Drexel University.  He is an active member of ASCE and NSBA.

Alexandra Mansi, EIT, CBSI is a structural designer at Michael Baker's Philadelphia operations. She has over 5 years of experience in structural bridge design. Alex earned her Bachelor of Science degree from Widener University and is an active member of ASCE.

Nathaniel Dubbs, PhD, PE, P.Eng. is a structural engineer and Vice President at BDI. He has twenty years of experience in non-destructive testing and evaluation and instrumentation of structures. He is a graduate of Drexel University and is an active member of ASCE, TRB Committee AKH16, IABSE, and Heavy Movable Structures.

Justin Banks, EIT, CBSI is a structural designer at the McCormick Taylor Philadelphia office. He has over 3 years of experience in the structural design of transportation structures such as bridges, retaining walls, and culverts. He earned a Bachelor of Science from The Pennsylvania State University and is an active member of ASCE and the NCSEA.

Kylie White, PE, CBSI is a bridge engineer at GFT out of the Audubon and Philadelphia Offices.  She has over 7 years of experience in bridge structural design and bridge inspection.  Kylie recieved a Bachelor of Science degree from Columbia University and is an active memeber of ASCE.

Jessica Padilla, EIT is a structural designer at H&H’s Passenger Rail division. She has eight years of experience performing structural analysis, design, and forensic investigation of buildings, rail bridges, and other structures.  Jessica earned a Bachelor of Architectural Engineering from Penn State University and is an active member of ASCE.

Michael Urban, PE, CBI, is Bridge Department Manager for Michael Baker’s Philadelphia operations with more than 21 years of structural engineering experience. He specializes in bridge rehabilitation, historic preservation, and heat-straightening repairs of damaged steel bridge components. He earned dual Bachelor of Science degrees in Civil Engineering and Architectural Engineering from Drexel University, as well as a Master of Science from Lehigh University. He is an active member of SEI, ASCE, and ASHE.