This publication provides comprehensive LRFD design specifications for highway movable bridges, including structural, seismic, vessel collision, mechanical, hydraulic, and electrical design, as well as establishes requirements for movable bridge operation and control. The specifications cover several types of movable bridges, including bascule, swing, and vertical lift.

This 2023 third edition supersedes the 2007 second edition and its subsequent interim revisions. This revised edition includes the development and implementation of a consistent reliability-based methodology that is applied to machinery design and elsewhere, where practicable; optional site-specific wind loading, applied at the owners discretion; guidelines for operation of movable bridges from remote locations; and general updates to industry specification and code references, and material specification references.