An accessible concrete ramp is constructed with a maximum slope of 1:12 and a cross-slope limited to a maximum of 2 percent. The ramp clear width is 5 feet minimum, with 48 inches minimum provided. A detectable warning surface is installed with a length of 3 feet, positioned 6 inches minimum to 8 inches maximum from the edge of the roadway.
48" MIN. 5'-0" 1:12 MAX. SLOPE CONCRETE RAMP CROSS-SLOPE 2% MAX. DETECTABLE WARNING SURFACE. SEE DETAIL 05/A012 3'-0" 6" MIN. NOTE: DETECTABLE WARNING MATERIAL 6" MIN. - 8" MAX FROM EDGE OF ROADWAY
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