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Advice · Mountain driveways

Building a New Mountain Driveway: Step by Step

(505) 578-7882

From first call to first drive, here's what happens when a mountain driveway is built — and why the dirt work takes longer than the paving.

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  • Plain-English advice
  • Written for the East Mountains
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Paving crew placing asphalt on a sloped private drive lined with boulders and pines
Paving a sloped private drive.

The steps

StepTypical time
Site visit and written quoteWithin days of your call
SchedulingOften 1–4 weeks, depending on season
Clearing and rough grading1–2 days
Drainage: culverts, swales, rock1–2 days
Base placement and compaction1–3 days
PavingUsually 1 day for a typical drive
Cure before normal drivingAbout 2–3 days; months to fully cure

Long, steep or rocky drives take longer. Granite outcrops, tree roots and soft spots found during grading can add time.

Why the ground work matters most

In the East Mountains, driveways fail from water and weak base far more often than from the asphalt itself. Steep grades send storm water racing downhill; snowmelt soaks in and freezes. That's why most of the job is grading, drainage and base. See runoff and drainage and steep driveways.

Diagram: mountain driveway cross-section with 2–3 inches of asphalt over 4–6 inches of compacted base on decomposed granite
What goes under a driveway on mountain ground.

Paving day

  1. Final grade check and tack coat at edges and transitions
  2. Hot asphalt placed with a paver or by hand on tight spots
  3. Rolled while hot for density
  4. Edges shaped and backfilled
  5. Barricades set; you get care instructions

Season matters

Asphalt plants and good paving weather run from spring to fall up here. Cold nights limit late-season paving at higher elevations, so it's worth calling early in the year. Grading and drainage can sometimes be done ahead of paving.

After it's done

Keep heavy trucks off for a couple of weeks, avoid turning wheels in place while it's soft, and plan the first sealcoat after about a year. See snow plowing and asphalt before the first snow, and our cost guide for pricing. Call (505) 578-7882 to start.

Questions we get

Do I need to be home on paving day?

Not necessarily, but be reachable and make sure vehicles are out of the way the night before.

Can you pave in winter?

Rarely at this elevation. Spring through fall is the paving season; dirt work can sometimes happen earlier.

What if you hit rock while grading?

We'll show you the options and any price change before going further.

Keep reading

Let's look at your driveway

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