At CKL Engineers, we believe that infrastructure should serve everyone equitably and safely. That’s why ADA compliance isn’t just a regulatory requirement; it’s a core part of how we design and deliver every civil engineering project.
The Americans with Disabilities Act (ADA), passed in 1990, prohibits discrimination based on disability and requires that public spaces and transportation systems be accessible to individuals with physical, sensory, and cognitive impairments. In the field of civil engineering, this translates into clear standards and responsibilities that shape how we build everything from sidewalks and roadways to transit facilities and public buildings.
Why ADA Compliance Matters

ADA-compliant design helps ensure that people of all abilities can access and navigate their communities with independence. Accessible infrastructure improves quality of life for everyone, including families with strollers, older adults, and people with temporary injuries. Some could be your friends, your family, or your neighbors.
Key Elements of ADA-Compliant Design

ADA guidelines are detailed and comprehensive. In civil engineering, some of the most important design elements include:
Curb Ramps: Smooth transitions between sidewalks and crosswalks with appropriate slopes, widths, and detectable warning pads, also known as truncated domes.
Sidewalk Widths and Slopes: Clear paths of travel that are at least 4 feet wide with slopes that don’t exceed a 5% grade.
Crosswalks and Signals: Audible pedestrian signals, adequate crossing times, and accessible push buttons.
Bus Stops and Transit Stations: Raised platforms, tactile surfaces, ramps, and shelter designs that accommodate wheelchairs and mobility devices.
How CKL Engineers Incorporates ADA Best Practices

ADA compliance is a large part of many past and present projects here at CKL, with the biggest example being our work on C*NECT. Across Chicago's 50 wards, C*NECT makes key infrastructure improvements as requested by local aldermen, and these improvements often include introducing or upgrading ADA infrastructure, such as
warning pads or sidewalk ramp grades. Improvements to pedestrian infrastructure, such as sidewalks and traffic calming measures, are designed with ADA standards in mind from day one. CKL's field inspectors verify that contractors implement ADA features correctly, with no shortcuts or oversights.
Final Thoughts