Campton is where the Sandwich Notch Road starts climbing, and that road is the best driveway lesson in the county. Laid out in 1801 as the first real commercial route through the White Mountains, cut by men with oxen, one lane of gravel, open roughly May to late November and gated with Jersey barriers the rest of the year. It is still there two centuries on because it was built into the hill instead of spread on top of it. That is the whole trick, and it is how a driveway ought to go in.
Campton’s roads are a patchwork, and the driveway conversation changes depending which piece you are on. There is state highway — Route 3, Route 175, Route 49 running the thirteen miles up to Waterville Valley — where a new curb cut is NHDOT’s call and not the town’s. There is the town network the Road Agent and his crew keep up, five full-timers and four seasonals doing paving, grading, ditching and mowing all summer so it survives the winter. There is Class VI, unmaintained for five years or more by definition, where the town owes you nothing and the driveway had better be self-sufficient. And then there is Waterville Estates, where a village district chartered under RSA 53 across parts of Campton and Thornton runs its own secondary roads and its own water for the hillside. Four different answers to “who fixes this.”
Grade is what separates a driveway that lasts from one you rebuild every four years. Water is lazy until you hand it a straight run downhill, and then it takes your surface with it. On a steep Campton drive — and the Waterville Estates side of town is full of them — that means grade breaks, turnouts where water can leave the travel way before it picks up speed, cross-culverts at the low points, and a crown that actually sheds rather than a dished middle that collects. Twelve feet of travel way with a real base under it costs more on day one and less every year after. The other way around is how you end up with a stripe of bare subgrade up the middle by the third spring.
Then there is April. Unpaved ground here comes out of winter saturated from the bottom up, and towns across the state post weight limits on Class IV, V and VI roads to stop loaded trucks destroying them while the frost lets go. Your driveway has the same problem and no ordinance protecting it. A drive built on geotextile over compacted bank-run comes through mud season; one built on six inches of crushed stone dumped over loam does not. And the loads are real here. Of 2,167 housing units in town, 716 sat vacant at the last census — mostly seasonal — while I-93 pushes roughly 18,500 vehicles a day past the Campton exits, up nine percent in a decade. A rental turning over on a camp road means traffic every Friday, not twice a summer.
If your Campton driveway washes every year, stop buying gravel and buy a culvert and two turnouts. The Sandwich Notch Road has held together since 1801 on that principle, and it was built with oxen. Water has to have somewhere to leave before it gets up to speed.
We build from the bottom. Strip the organics out — loam and roots under a driveway are a spring failure waiting to happen — then geotextile where the subgrade is soft, then compacted bank-run gravel in lifts, then a crushed surface, then a crown. Twelve feet of travel way is the working default. Wider at the turnaround, because an oil truck or a fire truck that can’t turn around is its own kind of problem.
Water gets handled as we go, not afterward. Ditches where the slope feeds the drive, cross-culverts at the low spots sized for melt rather than for an average rain, stone aprons at the outlets so the pipe doesn’t undercut itself, turnouts on the long grades. The culvert at the road entrance is part of the permit — NHDOT’s if you are coming off Route 3, 175 or 49, the town’s if you are on a town road — and they will want it sized to the ditch it interrupts.
On an existing drive the first question is whether the base failed or only the surface. If it is the surface, regrading pulls material back where it belongs, re-crowns it and compacts it, and that costs a fraction of new. If the base is gone we will say so and price a rebuild of the failed section rather than the whole run. Washboard and potholes are almost always a thin or uncrowned surface telling you something, and they come back if all you do is scrape them.
New gravel driveways in Campton run $15–$30 per linear foot for a twelve-foot travel way with base, surface and crown. Long, gently graded runs down in the valley sit toward the low end per foot; steep hillside drives with grade breaks, turnouts and cross-culverts land at the top. Regrading and re-crowning an existing drive costs a fraction of new. Culverts, headwalls and the permit meeting are quoted per site.
Depends on the road. Coming off Route 3, 175 or 49 it is NHDOT, which requires a permit for any new driveway or alteration onto a state-maintained highway and for disturbing its shoulder or ditch. Off a town road it is Campton. On a Class VI road the answers get complicated fast, and that conversation belongs at the town office before you hire anybody.
Sometimes, with conditions, and never assume. A Class VI road is one the town hasn’t maintained in at least five consecutive years, which means no plowing and no repair. Towns can require a release of liability and attach conditions before permitting a building there. Settle that in writing first — the driveway is the easy part.
Almost always grade and drainage rather than material. A long uninterrupted downhill run gives water enough distance to get moving, and once it is moving it carries your surface off with it. Grade breaks, turnouts and a culvert at the low point fix that. Fresh gravel on the same geometry just gives the water something new to take.
Gravel, for most of these drives. It flexes with frost instead of cracking, it is cheap to repair, and it doesn’t shed every drop onto the next thing downhill. Pavement earns its keep on a short flat approach, or where a steep grade needs the traction. Either way the base underneath decides how long it lasts.
We would rather not, and you would rather we didn’t. When the frost lets go, unpaved ground has almost no bearing capacity — towns post weight limits on Class IV, V and VI roads for that exact reason — and running loaded trucks over a saturated drive undoes more than it builds. Emergency repairs, yes. A planned rebuild waits.
Free site walks, test pits before quotes, flat pricing, and a crew that knows Lakes Region ground.
Tell us where the property is and what you’re trying to do. We’ll walk the site, talk it through, and give you a straight, flat quote.
We reply to every request within 2 business hours.
