Road & Driveway Construction

A mountain road or driveway is an engineered drainage project that happens to be drivable. At Hilltop Mountain Services, we build, rebuild, and maintain private roads and driveways across the Front Range and the high country — graded, drained, crowned, and surfaced to stay open through spring runoff, monsoon, and the snow season that follows. From a single ranch driveway to a private road serving several homes, we build access that does not wash out the first wet year.

Our road work covers new private road construction, driveway construction and rebuilding, gravel and asphalt and dirt resurfacing, slope corrections for runoff, and the culverts, swales, and drainage pathways that decide whether a road survives its second spring. We also handle the commercial and HOA snowplowing that keeps those roads open once the snow flies.

What you get is access that works when you need it — not a road that looks good in the brochure and closes every May when the runoff hits.

A mountain road fails from the bottom up, and almost always because of water, not gravel. A road without crown sheds water onto itself instead of off. A road without a ditch or a culvert at the low point ponds and softens. A road cut too steep for the grade slumps after the first wet season. We see these failures across Pine, Conifer, Bailey, and Fairplay every year, usually on roads that were built fast and cheap.

Spring runoff is the real test. A road that drains correctly comes through a heavy snowmelt year in decent shape. A road that does not drain comes out of the spring with ruts, soft spots, and washouts — and those get worse every year until the drainage is fixed, no matter how much gravel gets dumped on top.

The fix is almost never more gravel. The fix is the shape of the road, the drainage that moves water off and away from it, and the base underneath. We solve the water first and the surface second.

New private road construction — clearing, grading, base, drainage, and surface built from raw ground up, sized to the traffic it has to carry and the slope it has to cross. Driveway construction and rebuilding — from a single home access to a shared private road, graded and drained for the long haul.

Resurfacing — gravel regrading and regrading with added base, asphalt paving and patching, and dirt road maintenance that restores crown and drainage instead of just smoothing the top. Slope corrections — regrading the cuts and fills that have been slumping, with the drainage added that should have been there from the start.

Drainage infrastructure — culverts at the low points and under the driveways, swales and ditches to carry water off the road, and the outlets that keep the runoff moving away from the surface instead of pooling on it. And the snowplowing that keeps those roads open through the season, on the same routes we built.

A road project starts with the water, not the surface. We walk the alignment, find where the water comes on and where it needs to get off, and lay out the drainage before we touch the grade. A road that is built without the drainage plan first is a road you will be rebuilding.

From there we cut and shape the road — the crown, the cross-slope, the ditch, and the culvert placements — then lay the base and the surface. On rebuilds we regrade to restore crown and drainage before we add material, because dumping gravel on a road that has lost its shape just buries the problem.

We finish with the outlets and the tie-ins so the water leaving the road actually goes somewhere instead of ponding at the property line. And on the roads we plow, we plow to protect the drainage — keeping the ditches clear and the culverts open so the spring melt does not undo the work we did in the fall.

We build in gravel, asphalt, and dirt, chosen for the traffic, the grade, and the maintenance you are willing to do. Gravel is the workhorse of the mountain road — it drains, it is forgiving, and it can be maintained. Asphalt is the right answer where the grade and the base can support it and the look matters. Dirt is the right answer on the lowest-traffic access, with the right crown and drainage to keep it passable.

The drainage is non-negotiable. Crown, ditch, culvert, swale, and outlet — every road we build has all of them where the water demands it. We do not leave a road that ponds, and we do not leave a culvert that outlets into a foundation.

We build to the standards your county and your access situation expect — width, grade, drainage, and setback. On shared private roads we will coordinate with the neighbors so the work serves everyone on the road, not just the parcel that hired us.

Our road and driveway work runs the Front Range and into the high country — Pine, Conifer, Evergreen, Bailey, Idaho Springs, Georgetown, Golden, Morrison, Fairplay, Buffalo Creek, Bergen Park, and Genesee. We work on single driveways, shared private roads, ranch access, and light commercial access across that band.

Knowing the area means we know the soils, the grades, and the runoff patterns before we show up — which means a more accurate estimate and a road that comes through its second spring instead of washing out in its first. It also means we know which roads we already plow, which makes the year-round maintenance a lot simpler for you.

If your road or driveway is washing out, softening, or just not draining, tell us where it is. The answer is almost always a drainage fix, and we will tell you exactly what that looks like before we move a machine.

Ask how the water will be handled before the surface goes down. If the answer is vague, you are going to rebuild the road after the first wet spring. Ask what the crown and the cross-slope will be, and where the ditch and the culvert go — because a road without drainage is just an expensive way to move mud.

Ask about the base. A surface over a weak base is going to fail no matter what material is on top. Ask whether the grade is safe for the traffic — a road cut too steep for the vehicles that use it is a hazard, not an access.

And ask whether the contractor also plows the road. The crew that built the road and plows it every winter is the crew that catches the drainage problems before they become washouts. We build and we plow, and the two jobs make each other better.

If you are building new access, rebuilding a road that washes out every spring, or resurfacing a driveway that has lost its shape, we will come walk the alignment and give you a real drainage-first plan. Tell us the property and the problem, and you will get an assessment from a team that builds mountain roads and then plows them through the winter.

Call 720 602 5060 or use the project configuration on the contact page. We build private roads and driveways across the Colorado Front Range that stay open when the mountain decides otherwise.