This proceedings of the Tenth International Conference on Cold Regions Engineering held in Lincoln, New Hampshire, on August 16-19, 1999, presents a state-of-the-art look at cold regions engineering research and its application to real-world problems. Over 80 technical papers covering a broad range of topics include: modernization and upgrade of facilities at the U.S. Amundsen-Scott South Pole Station; design and construction problems in frozen ground and perma-frost; water and wastewater systems, bioremediation, and contaminant analysis in cold regions; use of satellite and airborne imagery for detection of oil spills and environmental degradation; solutions to problems affecting pavements, railroads, airfields, and snow-covered roads; snowmelt, runoff, ice control, and modeling of ice-covered rivers; structural and foundation problems; tree and power line damage due to freezing rain and ice storms; and sea ice forces on structures and the effects of ice on riprap. These papers represent cold regions engineering research and practice in Canada, China, Finland, Japan, Norway, Russia, Sweden, the United Kingdom, and the United States.