ADA Ramps & Compliance in Des Moines, Iowa Code-Compliant Slope That Holds Through Iowa Winters
Reinforced, air-entrained concrete ramps built to ADA slope and landing requirements and poured by one JLB crew for Des Moines commercial and municipal sites.
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ADA Concrete Ramps in Des Moines, Iowa, Built to Hold Slope Through Freeze-Thaw
An ADA ramp lives or dies on the concrete you pour into it. The federal standard allows no more than a 1:12 running slope and a 2 percent cross slope, and that geometry only stays true if the slab underneath doesn't move. JLB pours ramps with 5 to 7 percent entrained air, the ACI range for freeze-thaw flatwork, and reinforces them so the persistent hydrostatic pressure from poorly-draining till can't shift the surface out of tolerance. Get the mix and the steel right, and the ramp passes inspection the day it cures and stays compliant for decades.
Downtown Des Moines sits where two rivers meet. The confluence of the Des Moines and Raccoon Rivers leaves the urban core with a high water table and dense glacial till that drains slowly, so a ramp footing here has to do more than carry weight. We set footings below the 42-inch frost line and detail drainage at the base so meltwater runs off the landings instead of pooling and refreezing where someone has to roll across it.
ADA Concrete Ramps JLB Pours in Des Moines
Code-compliant concrete ramps — precise slope, level landings, and handrails, with footings set below the frost line.
Slope and landings that actually meet code
The numbers are not suggestions.
A compliant ramp runs at 1:12 or flatter, holds cross slope under 2 percent, and gives a level 60-inch landing at the top, the bottom, and any direction change. JLB forms and screeds to those tolerances and checks them with a level before the concrete sets, because a ramp that drifts even slightly out of slope fails inspection and creates real liability for the building owner.
Handrail and edge detailing get built in.
Ramps that rise more than six inches need rails, and curb or edge protection keeps a wheel from rolling off the side. We set anchor sleeves and form the edges as part of the pour rather than drilling and patching later, so the rail mounts are solid and the finished ramp reads as one clean piece.
Why Des Moines ground demands deep footings
The river corridor holds water.
Along the East Village and downtown river corridor, the till stays damp and pushes against anything set in it, and shallow footings heave when that saturated ground freezes. JLB drops footings well below 42 inches so the ramp bears on stable soil and doesn't lift a corner the first hard winter, which is exactly how out-of-spec slope creeps in over time.
Surface texture matters on a ramp.
A light broom finish across the running surface gives wheels and feet grip when the concrete is wet or iced, the condition that matters most through a central-Iowa winter near the rivers. We pour that texture in rather than relying on a coating that wears off, so the traction is part of the slab.
One in-house crew from layout to final pass
The same JLB crew handles the whole build.
We survey the run, set forms to the required slope, dig and pour footings below frost, place the reinforcement, and finish the surface, with no subcontractor handoffs where a tolerance gets lost. One team owns the project from the free site walk through the day the forms come off.
Compliance is checked before we quote.
We measure the existing grade, the rise you need to clear, and the landing space available before any number, so the estimate reflects a ramp that will actually pass inspection on a Des Moines commercial or municipal site rather than a square-foot guess.
Surveyed to 1:12 slope, footings below 42 inches, broom-finished for grip — a JLB ADA ramp poured for the Des Moines river corridor.
What Makes Des Moines Concrete Different?
Central Iowa concrete endures 100 to 120 freeze-thaw cycles in a single winter. Each cycle expands trapped moisture and opens micro-fractures, which is why air-entrained mixes and correct joint placement matter far more here than in milder climates.
How JLB Handles ADA Ramps in Des Moines
Free On-Site Inspection
We measure the area, check how it drains, and assess the base before quoting.
Tear-Out & Haul-Off
The old driveway comes out and we remove the debris so we start on solid ground.
Subgrade Prep
We compact and grade the base so the slab bears evenly over central-Iowa soil.
Forming & Reinforcement
Forms are set to grade and we add rebar or mesh where the load calls for it.
Air-Entrained Pour
We place a 5-7% air-entrained mix built for Iowa freeze-thaw.
Finish & Saw-Cut Joints
Broom or decorative finish, then control joints cut at planned intervals.
Cure & Protect
We protect the pour while it cures so it gains full strength without scaling.
Why Des Moines Homeowners Choose JLB for ADA Ramps
Precise 1:12 slope and code-compliant landings
Air-entrained, reinforced concrete that holds compliance through Iowa freeze-thaw and soil movement
Deep footings below the 42-inch frost line
Meets federal ADA requirements plus local code
ADA Ramps & Compliance in Des Moines — FAQ
The federal standard caps the running slope at 1:12 and the cross slope at 2 percent, with level 60-inch landings at the top, bottom, and any turn. JLB forms and screeds to those tolerances and checks them with a level before the concrete sets so the ramp passes inspection.
Below the 42-inch frost line. Downtown Des Moines sits on saturated glacial till near the river confluence, so deep footings keep the ramp from heaving and drifting out of compliant slope after a hard winter.
JLB pours ADA ramps with 5 to 7 percent entrained air, the ACI range for the 100 to 120 freeze-thaw cycles a central-Iowa winter brings. That air, plus reinforcement and a compacted base, keeps the running surface sound and the slope true.
Yes. Ramps rising more than six inches require rails under ADA, so JLB sets anchor sleeves and forms the edges during the pour rather than drilling and patching afterward. That makes the rail mounts solid and keeps the finished ramp looking like one clean piece.
Yes, that's most of this work. JLB builds ADA-compliant concrete ramps for commercial, municipal, and institutional projects across the Des Moines metro, meeting federal ADA requirements plus local code. Call (515) 717-8560 for a free site walk.
Get Your Free ADA Ramps Estimate in Des Moines
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JLB Basement Waterproofing & Foundation Repair — Des Moines
97 Indiana Ave Suite #1Des Moines, IA, 50314(515) 717-8560 View on Google Maps
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A free on-site estimate tells you exactly what your ada ramps project takes — and what it costs. Call (515) 717-8560.