Geosynthetic-Reinforced Soil (GRS) structures have gained increasing popularity in earthwork construction in many parts of the world. In actual construction, GRS structures have continued to demonstrate many distinct advantages over their conventional counterparts. GRS structures are typically more ductile, more flexible, more economical, more adaptable to low quality backfill, and easier to construct. This book contains the proceedings of the International Symposium on Mechanically Stabilized Backfill. It comprises four parts: Five keynote presentations delivered by premier researchers and engineers from US, Japan, France, Italy and Canada; 26 technical papers by practitioners and researchers of reinforced soil technology; A special presentation on the performance of 7,6-m high prototype reinforced soil bridge piers and bridge abutment; Panel discussion on 4 volatile subjects: long-term deformation, connection strength, and seismic performance and design. The panel discussions feature presentations by renown experts on each subject. The ensuing floor discussions of each panel discussion is also included in the book. This unique forum shall help designers and researchers understand the divergent aspects and relative significance of each of the issues.