Access ramp

[gbhammer]

1:20 = 25':500'If the path is longer, then the slope is less than 1:20.

The walk at that length should be less than 1:20 if they maintain the run at the same rate of rise throughout the walk. The question is, do they?

 

[mark handler]

The walk at that length should be less than 1:20 if they maintain the run at the same rate of rise throughout the walk. The question is, do they?

A walk with multiple slopes, as long as they are all less than 1:20, is still a walk and not a ramp and is not code violation.

 

[gbhammer]

My point was that if the ramp is exactly 500' long then there is no room for error, and even at 700' they may not have maitained the rise at 1:20 throughout. It should be checked.

 

[imhotep]

1:20 or less>>>>> Definition of a ramp>>>>Code and ADAAG 25 ft rise>>>>>>OP

500+ LF>>>>>>Estimate of Ramp at 1:20

Nitwit me I thought you were asserting that for slopes of 1:20 or less there is a maximum 25' rise and 500 LF run.

 

[jim baird]

BTW IMHO the aerial layout looks like they "went to lengths" to minimize the slope with the area they had to work with.

 

[Papio Bldg Dept]

I have never heard of a "notta" ramp before. Not sure a "notta" ramp is addressed in the ADA or A117.1 and I can't find a definition. Whatever it is, It doesn't need landings as HD, JB and Brudgers so wonderfully pointed out.

 

[brudgers]

BTW IMHO the aerial layout looks like they "went to lengths" to minimize the slope with the area they had to work with.

It still looks like they face an uphill battle.

 

[pmarx]

Yeah but on the plus side the skateboarders should love it.

 

[martinpgrant]

Jim and brudgers are right1:20 or less in slope can go on for eternity and not require landings. You can only require landings when it exceeds 1:20 and it becomes a ramp.

In CA, have to have a 5-ft level at intervals of 400-ft max on any walks with continuous gradients (even if not a ramp). Not sure if this is in Federal ADA or your local codes, but you may want to double check. (CA code reference is 1133B.7.5.)

 

[mark handler]

In CA, have to have a 5-ft level at intervals of 400-ft max on any walks with continuous gradients (even if not a ramp). Not sure if this is in Federal ADA or your local codes, but you may want to double check. (CA code reference is 1133B.7.5.)

Martin,

That is just a CA thing, not in the 2010 ADAAG, Ansi 117.1 or the IBC

and the proposed project is not in CA

 

[martinpgrant]

Martin, That is just a CA thing, not in the 2010 ADAAG, Ansi 117.1 or the IBC

and the proposed project is not in CA

Thanks - currently studying for CASp so need all the info I can get on ADA discussions right now!