Highlands Ranch ADA Ramps

Every accessible ramp gets checked with a digital level the week it goes in. Almost none of them get checked again. That's the trap, because a ramp doesn't drift out of compliance at the surface. It drifts because the dirt under one corner quit, the landing tipped a degree and a half, and the cross slope that read 1.6 percent at handover now reads 3.4.

So we build these from the bottom up. Sub-grade proof-rolled, soft material dug out, base placed in lifts and compacted, water routed past the toe instead of into it. Geometry comes after that. Do it in the other order and you've bought a good-looking ramp with an expiration date on it.

What happens to the dirt before a ramp gets formed

Soil in this part of Douglas County moves with moisture, and a ramp is the least forgiving thing we put on it. A driveway can drop half an inch and nobody notices. A landing that drops half an inch across five feet is out of tolerance, and worse, it's now a spot where somebody in a chair can tip.

Sub-grade gets treated like structure here. We proof-roll it, watch for anything that pumps under the wheel, and dig out material that flexes rather than burying it under gravel and hoping. Soft clay leaves the property. Base goes down in lifts, gets compacted at the right moisture so it actually locks together, and gets checked before the next lift lands. Where a ramp meets irrigated landscape, which around here is nearly every one of them, we move the drip line off the edge and send the water somewhere else. A saturated shoulder is how ramps tilt.

Drainage past the toe deserves the same attention. Runoff crossing the bottom of a ramp is collecting at the flattest ground on the property by definition, and standing water in January finishes the job all by itself.

Base work that happens before anyone talks about slope

• Sub-grade proof-rolled, with soft spots dug out instead of covered up
• Unsuitable clay hauled off site rather than blended back in
• Base placed in lifts and compacted, every lift verified
• Moisture held in range so the compaction holds after we leave
• Runoff carried past the toe of the ramp, never toward it
• Sprinkler heads and drip lines relocated away from the edges
• Thickened edges under the flares where plows and dollies load them
• Bar steel wired onto chairs so it rides mid-depth through the pour

The numbers an inspector checks

The winter a ramp has to survive

Ramps absorb more weather per square foot than anything else on a commercial site. First surface shoveled, first one salted, last one to dry, and sitting at the low end of the grade where water gathers. At 5,920 feet a January morning can start near 12 degrees and reach the fifties by two, so the top half inch of that concrete freezes and thaws more times each winter than most owners would guess.

Which is why the mix isn't negotiable: 4,000 PSI, air entrained, finished with a broom texture that grips without the dense troweled skin that scales first. And why we're blunt about ice melt. Magnesium chloride on a first-winter ramp pits the surface, and a pitted ramp is a slip complaint with a date on it.

The pattern across the Ranch is consistent. Entrances built in the Northridge and Westridge era predate current requirements, so replacing a walk there usually pulls a ramp rebuild along with it. Eastridge and Southridge properties land in between. Newer sites near BackCountry and The Hearth are compliant on paper and mostly need a settled landing brought back to level. May through September is our preferred build window, since base work needs unfrozen ground and these small pours give up heat quickly in shoulder season.

The tell is always at the bottom. We break out an old ramp and the base under the lower landing comes up gray and soft, right where somebody added a drip line three years after the concrete went down. Fix the water or you'll be back doing this again.What our crew lead tells homeowners