Aggie83
Civil/Environmental
- Jul 23, 2015
- 5
Hello,
I am a designer in land development (California) and have a question regarding grading to meet ADA requirements. I have read through the California Building Code, Chapter 11B, Sections 1-5, which talk about site accessible paths for building access, which cover required geometry and grading requirements for curb ramps, ramps, sidewalks, parking stalls, door thresholds, etc. Nowhere have I found provisions for where a level landing (square space where 1:48 max grade in any direction) is and is not warranted for acute intersections of sidewalk. I thought there was some provision out there where if your change in direction of travel (call it angle X) was less than a certain threshold, that you would not need a level landing and would just need to hold to the 1:20 max longitudinal slope and 1:48 max cross slope.
I am pretty sure the building code would drive this design. Let me know if I'm too far off the beaten path.
Thanks,
Noah Ramos
LPA, Inc.
I am a designer in land development (California) and have a question regarding grading to meet ADA requirements. I have read through the California Building Code, Chapter 11B, Sections 1-5, which talk about site accessible paths for building access, which cover required geometry and grading requirements for curb ramps, ramps, sidewalks, parking stalls, door thresholds, etc. Nowhere have I found provisions for where a level landing (square space where 1:48 max grade in any direction) is and is not warranted for acute intersections of sidewalk. I thought there was some provision out there where if your change in direction of travel (call it angle X) was less than a certain threshold, that you would not need a level landing and would just need to hold to the 1:20 max longitudinal slope and 1:48 max cross slope.
I am pretty sure the building code would drive this design. Let me know if I'm too far off the beaten path.
Thanks,
Noah Ramos
LPA, Inc.