Gravel, Stone and Soil Delivery in Henderson, KY

Alford silt loam at the center point

USDA soil maps place the center point of ZIP 42420 in Alford silt loam, 2 to 6 percent slopes. Alford is the main series, at 85 percent of the unit. It formed in deep, wind-blown silt, the fine dust that settled across river country long ago, and it has the smooth, floury feel that comes with that origin.^[1]

The survey rates Alford well drained and puts it in hydrologic group B, the class with moderate infiltration. Its top mineral layer is silt loam. Rain soaks into this ground at a fair rate when the surface is open, but silt crusts over when it dries bare, and then more water runs off.^[1]

Shrink-swell in the top 100 cm rates moderate, at 4.5 percent. Silt with that rating can move a little between a wet spring and a dry August, enough to crack a thin slab or tilt a loose paver. A compacted stone base spreads that movement out. The ground at the center point stands 490 feet above sea level.^[1],[2]

Silt this fine turns to dust on a dry, windy day and to paste after a soaking. Neither state is good for stone work. The best days to dig, grade and compact are the ones in between, when a handful of soil squeezes into a ball that crumbles when you poke it.^[1]

Precipitation and freezing nights

Henderson State Police, KY, about 3 miles from the center point, is the nearest NOAA normals station. It averages 47.6 inches of precipitation and 0.6 inches of snow each year. Lows reach 32 F or colder on about 93 days.^[3]

Records from that station put the median last spring freeze on April 9. They put the median first fall freeze on October 26.^[3]

Snow barely registers, so plowing is a minor concern. Rain and freeze-thaw cycles do most of the damage. Silt that stays wet heaves when it freezes, so the stone layer has to keep water moving out of the base. Wet winter weeks are the time to watch for soft spots and add stone before they turn into ruts.^[3]

Freeze and thaw also pull at fence posts and mailbox posts set in plain soil. Backfill post holes with 3/4" Crushed Stone, tamped in layers, so water drains away from the post and frost has less to grip.^[3]

Building a drive that lasts on silt

Strip the sod and the dark topsoil first. Silt topsoil is soft and full of roots, and it compresses under a load. Shape the subgrade with a slight crown, then lay a woven fabric across it. On silt loam the fabric is worth its place: it keeps the fine soil from pumping up into the base when the ground is wet.^[1]

Add Road Base in two or three lifts, wetting each one and running a plate compactor or roller over it. Crushed Concrete works the same way. A top layer of Driveway Gravel or 3/4" Crushed Stone gives traction and drains quickly. Set the finished surface a little higher than the lawn on each side so water moves off it.^[1]

Gentle slopes across the map unit mean a drive here rarely needs heavy erosion control. The low end still collects runoff, so a short trench of Drain Rock or a culvert bedded in #57 Crushed Stone at that point keeps the base dry.^[1]

Keep an eye on the drive after its first winter. Small dips show where the base settled or where water ran. Fill them with fresh Driveway Gravel and pack it down, so the next rain flows past instead of into them.^[3]

Mailbox and trash pad areas at the end of the drive see a lot of foot traffic and splashing. A small apron of compacted Road Base topped with 3/4" Crushed Stone keeps that corner clean and dry.^[1]

Comparing Crushed Concrete and Road Base

Two base materials do most of the heavy work on lots in ZIP 42420. Road Base is crushed virgin stone mixed with stone dust. It compacts into a dense, uniform layer, and it is the closer match to the state's road base specification. Crushed Concrete is recycled pavement broken to a similar size, and it binds hard as its cement dust sets with water.^[4]

For a house drive or a patio base, either one performs well on well-drained silt loam. Crushed Concrete can leave a pale, chalky surface if it is used as the top layer, so most people cover it with Driveway Gravel. For a farm lane or an equipment yard, Crushed Concrete and Asphalt Millings are both tough, hard-wearing choices.^[1]

Railroad Ballast is the heavy-duty choice for a farm entrance, a skid steer pad or a muddy gate. Its large, angular pieces carry weight on soft ground and resist being pushed into wet silt. Cover it with Road Base where people will walk or where small tires need a smoother surface.^[1]

Planting in deep silt

Silt loam is some of the best garden ground in the region. It holds water and nutrients well. Its weak point is crusting and compaction. Work Compost into the top of a bed every year, keep foot traffic on paths and never dig the soil while it is wet. Raised beds filled with Garden Soil or Topsoil warm up sooner in spring.^[1]

Cover beds with Shredded Mulch after the April 9 median last freeze at the station. Mulch stops rain from sealing the silt surface and keeps soil cooler in summer. Paths of Wood Chips or 3/8" Crushed Stone between beds keep shoes out of the mud.^[1],[3]

Plant trees and shrubs in early fall, before the October 26 median first freeze. Roots grow well in cool, moist silt, and a ring of mulch around each new trunk helps them through the first winter.^[3]

A compost pile of your own fits well beside a garden on silt ground. Set it on a pad of 3/8" Crushed Stone so the base drains and stays firm when you turn the pile with a fork.^[1]

Henderson homes by the numbers

The Census counts 17,394 housing units in ZIP 42420. Detached single-family houses make up 65 percent, the median year built is 1975, and owners live in 62 percent of the occupied homes.^[5]

Within the city of Henderson there are 13,585 housing units. Detached houses are 59 percent of them, and the median home was built in 1974.^[5]

The Kentucky Transportation Cabinet names Dense Graded Aggregate Base, Section 302, in its Standard Specifications for Road and Bridge Construction (2026) as the base layer for state roads.^[4]

With a median year built of 1975 in the ZIP, many houses have walks and drives that have settled and cracked. Many owners replace a broken concrete strip with a stone drive built on fresh base, and a load of Crushed Concrete can even come from the same kind of old slab.^[5]