The AASHTO LRFD Bridge Design Specifications, 10th Edition (2024), present national design requirements for highway bridges using the Load and Resistance Factor Design methodology. The specifications apply to the design, evaluation, and rehabilitation of highway bridges. Section 1 introduces the scope, definitions, and design philosophy, including limit states and the roles of ductility, redundancy, and operational importance. Section 2 covers general design and location features such as route location, bridge site arrangement, clearances, environment, foundation investigation, and design objectives. The edition carries revisions across the specification sections, covering materials, structural members, foundations, and other bridge components. The specifications are intended for bridge design engineers in state and local agencies and their consultants.