Curb Ramp Accessibility Initiative


In 2017, CDOT embarked on an $85M effort to bring all curb ramps into alignment with the ADA and Public Right-of-Way Accessibility Guidelines (PROWAG) standards over the next five years. With more than 20,000 curb ramps statewide, CDOT is taking a “worst first” approach to upgrading curb ramps and addressing deficiencies. This approach has been reviewed and vetted by the Colorado Advisory Council for Persons with Disabilities, which provided a letter of support for CDOT's program.

Current Status 

As of June 2023, 19,865 (85%) of total curb ramps (23,430) have been inventoried. 

 Bar chart emphasizing functional accessibility of curb ramps. 13% of curb ramps were remediated in 2017, 23% in 2018, 24% in 2019, 40% in 2020, 48% in 2021, and 54% in 2022.

Total Ramps Need Inspection Data collected Functional Accessibility
23,430 3,565 19,865 10,825
  Need Inspection - % Data collected - %     Functional Accessibility - %
  15% 85% 54%

View CDOT’s Curb Ramp Inventory

 Note: Curb ramp inspectors & CDOT staff, please use your Suvery123 App for the most updated information 


The 2022 ADA Transition Plan provides details about CDOT's approach to inventorying, categorizing, and upgrading curb ramps and associated pedestrian pushbuttons.

To request the installation of a curb ramp or accessible pedestrian signal, please complete the appropriate form and submit to the CRBRC.