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Is there a maximum length for a 1:12 curb ramp?

Yes, The rise for any ramp run shall be 30 inches maximum. §11B-405.6

You need to work out the math
 
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Keith,

Are you asking about the "rise" of a ramp, or the maximum length

before a landing is required, or something else altogether ?

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North, he appears to be speaking about "curb" ramps, not onsite ramps.

If 30" is the maximum rise allowed at 1/12 than 30' would be the max for a site ramp (it can be lengthened with a less steep slope).

Curb ramp lengths are dictated by curb face height vs height at rear of sidewalks, parkways, etc. vs slope. Can you go back 30', it depends on site topography.
 
ADAguy said:
North, he appears to be speaking about "curb" ramps, not onsite ramps.If 30" is the maximum rise allowed at 1/12 than 30' would be the max for a site ramp (it can be lengthened with a less steep slope).

Curb ramp lengths are dictated by curb face height vs height at rear of sidewalks, parkways, etc. vs slope. Can you go back 30', it depends on site topography.
Click to expand...
No ramp curb or otherwise can exceed the 360 ft length.
 
Yeah, after I posted that I realized that we weren't talking about the same ramps..........my bad
 
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