View and listen to select presentations given at TRB's Sixth International Bridge Engineering Conference on July 17-20, 2005, in Boston, Massachusetts. The conference examined the latest bridge research results and technical information on planning, design, construction, maintenance, repair, rehabilitation, replacement, management, security, and safety of vehicular and railroad bridges. The conference also focused on problems and solutions of interest to bridge engineers and administrators of highway, railroad, and transit agencies. Also highlighted were esearch results from the American Association of State Highway and Transportation Officials-sponsored National Cooperative Highway Research Program bridge studies, as well as from federal, state, and other research agencies’ programs.