Outdoor Developed Areas: A Summary of Accessibility Standards for Federal Outdoor Developed Areas

Cross Slope [1016.7.2]

Cross slope is the side-to-side slope of the surface of an ORAR. When the surface is constructed of concrete, asphalt, or boards, the cross slope must be no steeper than 1:48 (2 percent). When the surface is constructed of materials other than concrete, asphalt, or boards, cross slopes no steeper than 1:20 (5 percent) are allowed when necessary for drainage.