ada curb ramp guidelines - Search
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    • Clear Width: A ramp run must be at least 36 inches wide between the ramp’s handrails.
    • Rise: A maximum of 30 inches per run, with no limit on the number of runs.
    • Running Slope: 1:12 maximum slope, or one foot in elevation change for every 12 feet.
    • Cross Slope: The ADA permits a maximum ratio of 1:48.
    • Ramps and curb ramps are required along accessible routes to span changes in level greater than 1⁄2”.
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