Making ‘Impossible’ ADA Slopes Possible: Predictable concrete flatness techniques
                      April 28, 2014
                     
                      To some, it may seem impossible to meet the flatness required by the Americans with Disabilities Act’s (ADA’s) 2.1 percent maximum slope for random traffic floors, landings, walkways, sidewalks, curb ramps, entrances, exit ways, ramps, and intersections at walkways.