Gravel, Stone and Soil Delivery in Wake Forest, NC

What the survey maps under ZIP 27587

At the center point of ZIP 27587 the USDA soil survey maps a unit called Cecil-Urban land complex, 2 to 10 percent slopes. Cecil is the leading natural soil and fills 55 percent of the unit. Another 35 percent is urban land, the survey's term for ground that has been paved, graded or built over, so a yard in a unit like this can hold anything from native soil to imported fill.^[1]

Where the Cecil soil is undisturbed, the survey rates it well drained, with a sandy loam top mineral layer. It sits in hydrologic group A, the class in which rain soaks in fast and little of it runs off. Shrink-swell in the top 100 cm is low, at 2.6 percent. Water leaves this ground quickly, and the soil barely moves as it wets and dries.^[1]

Deeper down, the geologic map places the center point on a unit named Lineated Felsic Mica Gneiss, a Neoproterozoic rock made of gneiss and mica schist. Mica-rich rock can weather into a soft, shiny, slippery soil that packs poorly, so if a dig turns up glittering, greasy-feeling material, cut it out and replace it with Fill Dirt before any base goes down. The ground at the center point stands 330 feet above sea level.^[2],[3]

Slopes across the Cecil-Urban land unit run from 2 to 10 percent. On the steeper part of that range, plan for runoff along a drive or path, and on the flatter part, plan for the odd low corner where roof water gathers.^[1]

Rain near Falls Lake and a short frost window

The closest NOAA normals station is Falls Lake, NC, about 6 miles from the center point. It averages 47.5 inches of precipitation a year, which is plenty of water for a gravel surface to shed. The low at that gauge falls to 32 F or colder on about 82 days of an average year.^[4]

Falls Lake records its median last spring freeze on April 4. Its median first fall freeze comes on November 4.^[4]

Heavy summer storms do more harm to a loose surface than winter cold does in a climate like this one. A drive with a slight crown, or a cross slope toward the lawn, lets a downpour run off instead of cutting a channel down the middle. Freezing nights still come, so a base that drains well matters, because wet stone that freezes can lift and loosen.^[4]

Laying a stone drive on fast-draining sandy loam

Start with the subgrade. Strip sod and soft topsoil until you reach firm sandy loam, then shape it so it falls away from the house and the garage door. Where the test digs show clean native ground, a fabric layer is optional. Where they show old fill or patches of mica-rich soil, a woven fabric keeps the base stone from pushing down into it.^[1],[2]

For the base, spread Road Base in thin lifts and run a plate compactor over each one with a light mist of water. Its blend of angular stone and fines binds into a firm layer that can carry a loaded truck. Crushed Concrete and Asphalt Millings make good alternatives where a recycled base suits the job.^[1]

On top, Driveway Gravel gives a tight, walkable finish, while #57 Crushed Stone stays open and lets water pass straight through to the well-drained soil below. Where the drive meets a slope, a band of 1-1/2" Crushed Gravel at the edge resists the push of runoff. Top up the surface after the first season of traffic, once the stone has seated.^[1]

A gravel drive also needs a place for snowmelt and leaf litter to go. Leave a narrow grass or stone shoulder on each side so the plow, rake or blower has somewhere to push debris without scraping the base.^[4]

Garden beds on group A ground

Group A soil drains so freely that a new bed can dry out within days of a soaking. Work Compost into the top of the bed before planting, or build a raised bed of Garden Soil or Topsoil on top of the native sandy loam. Either one holds moisture near the roots longer than the native ground does on its own.^[1]

Spread Brown Shredded Mulch, Black Shredded Mulch or Red Mulch over the bed after planting to slow evaporation in summer heat. Hold the mulch back from stems and trunks. Wood Chips suit paths between beds and the ground under a play set, where a soft, loose cover is the goal.^[4]

Plan spring planting around the April 4 median last freeze at Falls Lake and fall bulb work around the November 4 median first freeze. Mulch put down before the first cold night helps protect roots in the shallow soil.^[4]

Picking between Pea Gravel and Walkway Gravel for a path

A garden path through a Wake Forest yard is a good place to choose stone by feel. Pea Gravel is smooth and round. It looks soft and is pleasant to rake, but the pieces roll under a shoe and drift off the path unless a firm edge holds them in. Walkway Gravel is a crushed, angular stone that knits together when packed, so it stays flatter and is easier on a wheelbarrow or a stroller.^[1]

Either stone sits well on sandy loam in hydrologic group A, because the path drains into the soil below it within minutes of a shower. For the edge, steel strips or a row of set stone keep either choice in place. Under the path, a thin compacted layer of Stone Dust Screenings gives a firm footing that stops the top stone from pressing into soft spots.^[1]

Kids' play areas are a different case. Playground Sand or Wood Chips make a softer landing than any stone, and Wood Chips stay put on the gentle slopes the map unit describes.^[1]

Homes in ZIP 27587 compared with the town

The Census counts 31,117 housing units in ZIP 27587. Of those, 77 percent are detached single-family houses, and the median home was built in 2006. Owners live in 81 percent of the occupied homes in the ZIP.^[5]

Wake Forest itself has 19,428 housing units. Detached houses make up 69 percent of them, and the town's median year built is 2009. Newer houses often come with builder-graded yards, where a layer of Topsoil and a few edging stones give the yard a finished look.^[5]

For road work, the state's reference is Aggregate Base Course, Section 520, in the North Carolina Department of Transportation Standard Specifications for Roads and Structures (January 2024). Ask Gravel Valet for a base stone made to that kind of grading if a contractor or an engineer names it on a plan.^[6]

Larger lots in the ZIP often have long drives, side parking and a work area behind the house. Order stone for each part by its use: Road Base and Driveway Gravel for traffic, #57 Crushed Stone where water must pass, and mulch or Topsoil where plants will grow.^[5]