Accessible curb ramps require a maximum slope of one in twelve alongside flared sides with a maximum slope of one in ten. Detectable warning surfaces are required where ramps lead to vehicular traffic, maintaining a minimum width of thirty-six inches. Landings must be at least as wide as the ramp, with a minimum width of forty-five inches when part of a means of egress. Adjoining slopes shall not exceed one in twenty toward planting or other non-walkable surfaces.
PLAN ELEVATION ADJOINING SLOPES SHALL NOT TO EXCEED 1:20 PLANTING OR OTHER NON-WALKABLE SURFACE DETECTABLE WARNING SURFACE REQUIRED WHERE RAMPS LEADS TO VEHICULAR TRAFFIC CURB 1:48 SLOPE 1:12 MAX MAX CROSS SLOPE MIN. 36" 6" MAX RISE MIN. 36" LANDING MUST BE AT LEAST AS WIDE AS RAMP DETECTABLE WARNING SURFACE REQUIRED WHERE RAMP LEADS TO VEHICULAR TRAFFIC SLOPE SLOPE FLARED SIDES 1:10 MAX SLOPE SLOPE 1:12 MAX MIN. 36" 45" WHERE RAMP IS PART OF A MEANS OF EGRESS MIN. 36" PLAN 45" WHERE RAMP IS PART OF A MEANS OF EGRESS MIN. 36" W/ SLOPE OF FLARED SIDES TAPER TOP OF CURB 6" MAX RISE CURB ELEVATION 36" MIN.
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