Accessible routes depend on the transitions between surfaces.

ACC’s published ADA retrofit work includes concrete modifications where ramps, slopes, grades and parking access must be brought into the project’s accessibility design.

Discuss an ADA-related scope ↗
Concrete curb ramp with detectable warning surface at a commercial building entrance

Think of the accessible path as a continuous route, not a single concrete detail.

1

Parking interface

Accessible spaces and access aisles connect to curb and pedestrian routes. Their relationship should be coordinated with the project documents and site markings.

2

Curb transition

Curb ramps and transitions need accurate elevations and tie-ins so the path moves cleanly from vehicle areas to walks.

3

Sidewalk / ramp

Existing grades, slopes, landings and route geometry can make retrofit work especially sensitive to field conditions.

4

Building approach

The concrete work must connect into the broader accessibility design at the entrance or destination point.

Accessible commercial parking route and concrete curb ramp
Concrete sidewalk repair showing a transition between existing and replacement work

Retrofits often touch adjacent concrete too.

When the existing site geometry changes, curb, sidewalk, pavement or repair work may become part of the same project. ACC publishes each of those as related commercial capabilities.

See site concrete