Guide to ADA Concrete Ramps

If you own or manage a commercial property, ADA-compliant access is a legal requirement. Concrete ramps, curb cuts, and accessible pathways all have specific dimensions, slopes, and surface requirements defined by the Americans with Disabilities Act.

Slope Requirements — The maximum running slope for an ADA ramp is 1:12 — meaning one inch of rise for every twelve inches of run. This is not a guideline; it is a hard limit. Steeper ramps fail inspection and create liability. Cross slopes (side to side) cannot exceed 1:48.

Landing Requirements — Ramps must have level landings at the top, bottom, and at any turn. Landings must be at least 60 inches long and as wide as the ramp. These landings give wheelchair users a flat surface to rest and maneuver.

Surface Requirements — ADA ramps require a firm, stable, slip-resistant surface. Concrete meets these requirements when properly finished. Detectable warning surfaces — the truncated dome patterns you see at curb cuts — are required at transitions between pedestrian and vehicle areas.

Width and Edge Protection — The minimum clear width for an ADA ramp is 36 inches between handrails. Edge protection (curbs or barriers) prevents wheelchair wheels from slipping off the side.

What Goes Into an ADA Ramp Pour — Building a compliant ramp involves precise forming to achieve the correct slope ratio, proper concrete thickness and reinforcement for the expected traffic, correct placement of detectable warning panels, surface finishing for slip resistance, and attention to drainage so water does not pool on the ramp surface.

Why This Matters — Non-compliant ramps are not just a code violation — they create real access barriers and real liability. CSC Paving builds ADA-compliant ramps and accessible concrete surfaces for commercial properties across DFW.