ADA Best Practices Tool Kit for State and Local Governments

10 [§ 4.7.5]

Answer this question only if you skipped the previous two questions because the curb ramp you are surveying does not have flared sides.

Curb ramps must have flared sides unless pedestrians would not normally walk across the ramp. A curb ramp may have returned curbs if it has non-walking surfaces (such as grass) or obstructions on both sides because these conditions would normally discourage pedestrians from walking across the ramp.

Generally, an object will qualify as an obstruction if it is immovable and is large enough to make it unlikely that pedestrians will walk across the ramp.