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36 CFR Part 1191 ABA Accessibility Guidelines, Outdoor Developed Areas

Click here to view 36 CFR Part 1191 in its entirety on eCFR.gov.

1015.6 Slope.

The slope of the surface of clear ground spaces and turning spaces shall not be steeper than 1:48 in any direction.

EXCEPTION: Where the surface is other than asphalt, concrete, or boards, slopes not steeper than 1:20 shall be permitted when necessary for drainage.

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