Sides of Curb Ramps [§406.3]
Curb ramps can have returned sides, but a top landing is required under all conditions to allow maneuvering to and from the run.
Recommendations: To prevent tripping hazards, curb ramps with returned sides should be used only where foot traffic across ramps is prevented or discouraged.
Built-Up Curb Ramps
Built-up curb ramps are permitted, but they cannot project in parking spaces, access aisles, or vehicle traffic lanes. A top landing at least 36” deep is required at all built-up curb ramps.
Built-Up Curb Ramp with Side Flares
Side flares can be provided to prevent tripping hazards. Edge protection is not
specified for curb ramps.
Recommendations: Provide edge protection along the sides of built-up curb ramps to prevent tipping hazards. Otherwise, consider a wider ramp width (48” min.) so that maneuvering does not occur near drop-offs.
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