This research investigation, conducted by the Physical Research Unit of the Minnesota Department of Transportation, began in 1971 to learn more about the behavior of Full-Depth Asphalt pavements. The investigation has 26 test sections, each 1200 feet (365.8m) long, of a variety of thicknesses, on a variety of soils. The thicknesses range from approximately five inches (12.7 cm) to 17.5 inches (44.5 cm) and soil types include AASHO soil classification A-2-4's. A-3's. A-4's. A-6's and A-7-6's. These soils include a stabilometer R value range of 5 to 75. The major portions of the research work on this investigation consisted of Benkelman Beam measurements on the zest sections at 50 foot (15.2 m) intervals, taken weekly throughout rh2 spring, bi-weekly throughout the summer and monthly into the fall. The temperature of the upper 1.5 inches (3.8 cm) of the mat was measured each time the Benkelman Beam deflections were taken. These data were then used to determine the effect the temperature and the season had on the deflections and also created a set of correction factors to apply to the measured deflections to adjust the deflections to an 80‘F (26.70C) peak season deflection. The peak season 80‘F (26.7C) mat temperature deflection was then taken to be the standard deflection for each of he test sections. These standard deflections were then compared to the deflections of aggregate base pavements and a relationship was developed between the Full-Depth thickness and the granular equivalency of an equivalent deflection aggregate base pavement. That relationship was then used to develop a Full-Depth bituminous pavement design chart which is the deflection equivalent of the flexible pavement design chart currently in use by Mn/DOT. The serviceability of the Full-Depth has also been monitored in terms of pavement roughness, rut depth and surface condition. The serviceability of the rest sections have nor changed enough to adequately estimate the performance of the test sections at the rime of this report.