Settlement of Bridge Approaches (The Bump at the End of the Bridge). A Synthesisof Highway Practice

摘要

A bump often develops at the end of a bridge near the interface between theabutment and the embankment. Reduction in steering response, distraction to the driver, added risk and expense maintenance operations, and reduction in a transportation agency's public image are all undesirable effects of these uneven and irregular transitions. This report is a synthesis of practice for the design, construction, and maintenance related to settlement of bridge approaches. The content is based on a literature review, the responses to a survey questionnaire of 72 engineers from 48 state departments of transportation (DOTs), and discussions with DOT engineers.