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Proceedings of the 13th International Conference on Cold Regions Engineering, held in Orono, Maine, July 23-26, 2006. Sponsored by Technical Council on Cold Regions Engineering ASCE. Cosponsored by Technical Committee on Frost in Geotechnical Engineering of the International Society of Soil Mechanics and Geotechnical Engineering; Finnish Association of Civil Engineers; United States Permafrost Association; International Permafrost Association.

This proceedings contains 73 papers that explore information beyond transportation and infrastructure, delving into the wider spectrum of cold regions engineering challenges encountered in the United States as well as in cold regions throughout the world. Topics include:

• Antarctic construction;
• cold regions concrete;
• ice engineering;
• IPY;
• scour and bed erosion;
• water quality best-management practices;
• water treatment;
• construction—frozen ground;
• construction­—ground freezing;
• embankment dams;
• frozen soil processes;
• frozen soil strength;
• ice lens formation;
• landfill issues;
• permafrost;
• asphalt surfaces;
• base layer design;
• frost protection;
• pavement design;
• snow and ice control; and
• thaw weakening.