Uniform Federal Accessibility Standards (UFAS)

4.7.2 SLOPE.

Slopes of curb ramps shall comply with 4.8.2. The slope shall be measured as shown in Fig. 11. Transitions from ramps to walks, gutters, or streets shall be flush and free of abrupt changes. Maximum slopes of adjoining gutters, road surface immediately adjacent to the curb ramp, or accessible route shall not exceed 1.20.

Figure 11

Measurement of Curb Ramp Slopes