This study reports the results of pipe deformation and surface rutting on a sloped or hilly terrain road using a finite element package (PLAXIS 3D) with advanced constitutive soil models. The role of various parameters influencing pipe performance, such as slope steepness, burial depth, pipe diametral change, and relative density change, was investigated. In addition, the paper compares the pipe-soil and geofoam-soil interactions in the sloped case to the critical horizontal plain scenario. This interaction was predominantly by sizeable lateral movement of soil rather than a longitudinal movement along the length of the pipe subjected to inclined loading. This study investigated the response of the pipe to inclined cyclic loading under the influence of the parameters above. The findings from the study revealed a negative effect of increased pipe deformation and stress felt at the pipe crown with an increase in pipe angle. Eight different sandy slopes were considered throughout, varying pipe locations from the slope crest. The potential effect of excessive deflection was more pronounced at a flatter slope angle. Geofoam, a compressible inclusion widely used in pavement foundations, was used in a novel post and beam configuration to reduce pipe deflection to a serviceability limit at slopes. The horizontal geofoam beam distributes the cyclic stress applied to a loading plate at the surface to the two geofoam posts positioned along the pipe's circumference. The settlement was uneven and concentrated near the crest of the slope.