Synthesis and Evaluation of The Service Limit State of Engineered Fills for Bridge Support

This report synthesizes the current service limit state (SLS) design and analyses of engineered fills for bridge support used as shallow foundations. The SLS for settlement and deformations of bridge supports are summarized. Extensive literature reviews were conducted to synthesize the effects of various parameters on the SLS of engineered fills. The reliability of current prediction methods for deformations of bridge supports on granular soils are presented and evaluated using measured deformation data in the literature. Based on the literature review and synthesis, knowledge gaps and data needs for bridge supports with engineered fills were identified. The full report is available online at http://www.fhwa.dot.gov/publications/research/infrastructure/structures/bridge/15080/15080.pdf