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Curb cuts

In a curb ramp that has either built-up or flared sides, the maximum slope of the incline should not exceed 1:12. What is the maximum slope of the (flared)sides in these types of curb ramps?

A. 1:8, B. 1:10, C. 1:12, D. 1:16


B=1:10 (10%) However when the level landing beyond the incline is less than 48 inches the flared sides are limited to 1:12.
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