ADA Best Practices Tool Kit for State and Local Governments

3 [§ 4.3.7]

The cross slope of the curb ramp is perpendicular to the running slope. Unlike the running slope, which runs along the ramp, the cross slope is measured across the ramp. The arrow in the illustration to the right [below], aligned perpendicular to the ramp run and parallel to the curb, shows where to measure the cross slope. The cross slope of a curb ramp, or any accessible route, may not exceed 2 percent.