Commercial Concrete — Liberty, MO
ADA Concrete in Liberty, MO
ADA-compliant concrete ramps, accessible entries, accessible routes, and commercial access concrete in Liberty and the KC metro — built to proper slope specifications, landing dimensions, and detectable warning surface requirements.
The Finished Result
Accessible routes that meet code and serve real people
ADA concrete work isn't just about compliance — it's about creating access routes that actually work for the people using them. The slope, landing dimensions, surface texture, and transitions between surfaces all affect whether an accessible route is genuinely usable. We build to the specifications that make a real difference, not just the minimum that passes inspection.
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What we handle on ADA concrete projects
We pour ADA ramps, accessible entry paths, detectable warning surfaces, and accessible parking routes for commercial properties in Liberty and the KC metro. New construction, retrofit on existing properties, and permit-required upgrades are all in scope.
- ADA ramps at curb cuts and parking lot edges
- Accessible entry walks and approaches
- Detectable warning surface installation
- Accessible parking stall surfaces
- Interior threshold and transition ramps
- Commercial pathway retrofit for accessibility
Common Use Cases
Common reasons to schedule this work
New commercial construction completion
New commercial buildings include ADA-compliant access routes in the building permit scope. Accessible entries, parking lot ramps, and pathways are poured as part of the sitework package.
Property retrofit for compliance
Existing commercial properties that change use, undergo significant renovation, or change ownership may trigger ADA retrofit requirements. We assess the existing access conditions and pour the required improvements.
Curb cut and ramp replacement
Existing curb cuts and ramps that don't meet current slope standards — or that have deteriorated — need replacement with properly designed accessible ramps with correct grades and detectable warning surfaces.
ADA parking lot improvements
Accessible parking stalls need level surfaces, proper striping (by others), and connection to an accessible route. When parking lot work includes ADA stalls, we pour those surfaces to accessible standards.
Commercial entry approach upgrades
Building entries that are reached by steps alone, or by ramps that don't meet current slope standards, need accessible approach work. We can pour new ramp structures or improve existing approaches.
Technical Standards
What matters on ada concrete projects
Ramp slope — maximum 1:12
ADA ramp slopes cannot exceed 1:12 (approximately 8.33% or 1 inch of rise per 12 inches of run). Steeper slopes don't comply. We measure the grade change and design the ramp length accordingly.
Landing dimensions at top and bottom
Landings at the top and bottom of every ramp must be at least 60 inches by 60 inches, level (max 1:50 slope in any direction). Landings that are too small or too steep are a common compliance failure.
Detectable warning surfaces
ADA ramp transitions at curbs and hazardous areas require detectable warning surfaces — dome-pattern truncated domes detectable underfoot by people using canes. These are cast into or applied to the concrete at the transition point.
Cross-slope on accessible routes
The walking surface of an accessible route cannot exceed 1:50 (2%) cross-slope — the lateral slope perpendicular to the direction of travel. Even compliant ramps need level cross-slope on the accessible surface.
Smooth transitions between surfaces
Transitions between accessible routes and other surfaces — at doorways, between new and existing concrete, between concrete and asphalt — need to be flush or no more than 1/4 inch vertical change. Abrupt transitions are tripping hazards and compliance failures.
Liberty, MO Context
Local conditions that affect ada concrete in the Northland
Commercial properties in Liberty and the Northland
Liberty and the surrounding Northland communities have seen substantial commercial development. Many existing commercial properties predate current ADA standards and require retrofit work as they undergo renovations or ownership changes.
Freeze-thaw durability on accessible surfaces
ADA ramps and accessible entry walks face the same freeze-thaw conditions as other exterior concrete. Air-entrained mix and proper sealant are particularly important on accessible routes, where surface deterioration creates additional safety hazards.
Coordination with permit and inspection process
ADA work on commercial properties typically requires building permit documentation and may require inspection. We can coordinate the pour timing with permit and inspection schedules.
The Process
From first call to finished concrete
Call or submit a request
Call (816) 542-6124 or fill out the estimate form. We confirm your area and project basics, then respond same day during business hours.
Free on-site estimate
We come to your property, assess the scope and site conditions, and review subbase and drainage. No charge, no obligation.
Written scope
You receive a written estimate covering the full scope, materials, finish, timeline, and price before any work is agreed. No surprises after the pour.
Prep, form, and pour
We handle site preparation, forming, and the concrete pour to spec — mix design, control joints, finish, and curing management.
Curing and walkthrough
We walk the finished work with you before we leave. Curing instructions and use timelines are included. Questions get answered on site.
What triggers ADA requirements on an existing commercial property?
Significant renovation, change of use, and in some cases change of ownership can trigger ADA compliance requirements. The requirements vary by project scope and the property's use classification. We're not code interpreters — consult with a licensed architect or building official for a determination on your specific property.
What slope is required for ADA ramps?
The maximum slope for an ADA ramp is 1:12 — 1 inch of rise for every 12 inches of run. A 6-inch change in elevation requires at least a 6-foot ramp run. Steeper slopes don't comply with ADA standards.
Do ADA ramps require detectable warning surfaces?
Yes, at transitions between the ramp and the street or parking surface. Truncated dome detectable warning surfaces are required at curb ramp landings that connect to vehicle lanes. Interior ramps between floors or within a building have different requirements.
How much does ADA concrete work cost?
Cost depends on the scope — a single curb cut ramp is a different project than a full accessible entry approach with landings and pathways. We estimate on-site based on the grade changes, dimensions, and what the site requires.
Can ADA ramps be added to existing concrete without full replacement?
Sometimes. If the existing grade allows a compliant ramp to be formed and poured adjacent to or against existing concrete, full replacement isn't always necessary. It depends on the grade change and available space. We assess on-site.
We provide ada concrete in:
All service areas →Free estimate on your Liberty ADA concrete project
We assess grade conditions, available space, and ramp requirements on-site.