Curb Ramp maximum height? CBC 1127B.5

[Yikes]

Per CBC 1127, curb ramps are not required to have handrails, or bottom landings as little as 48" long (Fig 11B-20B). This gives me extra wiggle room in tight situations.

Is there any limit as to the height of a curb ramp?

I know most curbs are typically 6" tall, but I have an existing building that is close to, and 9" higher than, the adjacent parking lot. Instead of chooping up the space with a zigzag ramp and handrails, can't I just make a curb ramp that is 9" tall?

If so, what is the upper limit of curb ramp heigh, before I have to start thinking about a more conventional ramp with handrails, landings, etc.? 12"? 30"?

 

[mark handler]

There is no limit as to the height of a curb ramp, per the CBC. Make sure you have the max slope in mind and Where possible, the least possible slope should be used.

 

[Msradell]

For what you are looking at a curb ramp is no different than any other ramp there is a maximum rise before you must have a landing but other than that there is really no restriction. There is no problem at all making a curb ramp for a 9 inch curb!

 

[Yikes]

Just trying to wrap my head around this: theoretically, I could have (for example) a curb ramp with a 30" rise, 30' long, 8.33% slope, with no handrails or guardrails, and only 4' landings, and the thing shat justifies it per code is that it services an aread with a 30" high curb. Which looks suspiciously like a 30" high retaining wall.

I'll double-check ADAAG, but I assume there's no limit in there either.

 

[mark handler]

ADAAG, but I assume there's no limit in there either.

There is no limit as to the height of a curb ramp, per the 2010 ADASAD. Make sure you have the max slope in mind and Where possible, the least possible slope should be used.

Remember TO ADD THE DETECTABLE WARNINGS PER CBC