4.7.2 Slope

Note: This document, portion of document or referenced document was published prior to the 2010 ADA Standards, and is still applicable.

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.

The ramp slope is a ratio equal to the vertical rise (y) divided by the horizontal run (x). It is equal to the tangent of the angle that the plane of the ramp surface makes with a horizontal (level) plane. For a curb ramp, the adjoining slope at walk or street shall not exceed 1:20.

Fig. 11 Measurement of Curb Ramp Slopes

[MORE INFO...]

*You must sign in to view [MORE INFO...]

Solutions

Documents

Resources

1991 ADA Standards for Accessible Design

4.7.2 Slope.

Related Keywords

Related Section Numbers

User Comments/Questions

[MORE INFO...]