New gravel driveways built with a real base, and tired ones regraded, crowned, and drained — so a Sanbornton driveway survives mud season and the next big storm instead of washing down the hill.
Sanbornton’s gravel roads and long climbing driveways are the town’s signature, and they teach a clear lesson: on a grade, water is the enemy and geometry is the defense. We rebuild washed-out Sanbornton drives every year, and the fix is always the same fundamentals done properly — crown the surface so water sheds sideways instead of running down the wheel tracks, ditch the uphill side, and put culverts where the water wants to cross rather than where it’s convenient to dig. Spring is dramatic here; snowmelt off the hilltop fields moves serious volume, and several town roads post for mud season, which shapes our hauling calendar. Homesite work runs to hilltop clearings with long views, glacial till with scattered boulders, and springs that appear exactly where you planned the lawn. Around Hermit Lake and the Winnisquam shore, standard shoreland setbacks and permit rules join the checklist.
If your Sanbornton driveway washes out every spring, stop re-graveling the symptom. One properly placed 15-inch culvert with a stone apron, plus a re-crowned surface, usually ends the cycle for a decade. The gravel was never the problem — the water’s path was — and rerouting it costs less than three years of patching.
A driveway that lasts is a structure: geotextile where soils are soft, a compacted bank-run gravel base, and a crushed-gravel or stone surface crowned so water runs off the sides instead of down the middle. Culverts go where water crosses, ditches where it runs alongside. Skip any of those and you buy the same driveway again every few years — that’s the washboard, potholed, washed-out driveway we get called to fix.
We build new driveways, rebuild failing ones, and do the annual regrade-and-crown that keeps a camp road drivable through mud season.
New gravel driveways typically run $15–$30 per linear foot built right (base + surface + crowning); regrading and topping an existing driveway costs a fraction of that. Culverts and ditching quoted per site. Flat quote after a quick look.
Built properly — compacted bank-run base, crushed gravel surface, crowned — figure $15 to $30 per linear foot for a standard 12-foot-wide driveway, more on steep or soft ground. A cheap spread-and-go driveway costs less up front and every year after.
Water is running down it instead of off it. The fix is shape and drainage: crown the surface, ditch the uphill side, and put a culvert where water crosses. Once water has somewhere to go, the gravel stays where you paid for it.
Yes — washboard and potholes are symptoms of a thin or uncrowned surface. We regrade to pull material back where it belongs, re-crown, and compact. If the base has failed we'll tell you honestly and price a rebuild of just the failed section.
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.
