ADA Best Practices Tool Kit for State and Local Governments

8 [§§ 4.3.3; 4.3.7]

Curb ramps should have at least 36 inches of clear space at the “top” of the ramp, which can be seen in the illustration to the right [below]. The 36-inch space at the top of the ramp allows pedestrians who are continuing along the sidewalk to bypass the curb ramp without traveling over it.

The measurement should extend from where the ramp run meets the level sidewalk (at the lower end of the arrow) to the opposite edge of the sidewalk (where the sidewalk meets the grass). Do not include any part of the curb ramp in this measurement.

X should equal at least 36 inches