Gravel, Drain Rock and Soil Delivery in Memphis, TN

Rain by the foot

The NOAA normals station at W Memphis, AR, about 7 miles away, averages 55.9 inches of precipitation a year and 1.7 inches of snowfall. That much rain, some of it in heavy downpours, means every driveway, patio and bed needs a plan for where water goes.^[1]

A single storm can drop more water than flat ground absorbs in a day. Water that cannot soak in spreads out, pools in low spots and carries loose mulch and fine gravel with it. Sites that handle this well share three traits: a slope away from buildings, a path for runoff, and surfaces that drain from the top down.^[1]

Snow is light at the W Memphis station, and what falls can melt within a day or two, adding to the water a site must shed in winter.^[1]

A center point on open water

The USDA soil survey maps the center point of ZIP 38103 as Water, and the state geologic map shows water at the same spot. Every project in the ZIP sits on land somewhere around that point, so the soil on a given lot is best judged on site with a test hole.^[2],[3]

Ground near large bodies of water can be soft, silty and slow to drain, though conditions change from one block to the next. Dig a hole a spade or two deep, fill it with water, and watch how quickly it empties. Slow drainage means the site needs fabric under any base and a planned outlet for runoff.^[2]

Where soil is soft, a thicker base spreads the weight of a car or truck across more ground. Building up rather than digging down also keeps a drive or pad above the wettest layer during a storm.^[2]

If the test hole fills with dark, compacted fill or debris, plan to remove it from under a drive or patio. Firm ground under the base matters more than any choice of surface stone.^[3]

Moving storm water off a lot

Grade first. Shape soil so it falls away from the house on every side, then decide where the water will leave the lot. A swale lined with River Rock carries surface water along a property line without eroding, and Riprap at the inlet or a bend absorbs the force of a heavy storm.^[1]

Where water needs to move underground, a French drain works well. Lay fabric in a trench with a steady fall, add a bed of Drain Rock, set a perforated pipe, cover it with more stone and fold the fabric over. The pipe should end at a ditch, a storm inlet or a lower part of the yard.^[1]

Rain gardens fit a wet climate well. A shallow basin of Topsoil and Compost, planted with species that tolerate both flooding and drought and fed by a River Rock channel, holds storm water in place while it soaks away.^[1]

Downspouts are the easiest win. A splash basin of River Rock at each outlet, or a buried pipe that carries roof water out into the yard, keeps the foundation dry through a long wet season.^[1]

Drives, patios and play spaces

A gravel drive in heavy rain country depends on its base. Strip soft topsoil, lay a geotextile, then pack Road Base or Crushed Concrete in thin lifts with a plate compactor or roller. Fabric keeps wet soil from pumping up into the stone under traffic.^[1]

Finish with Driveway Gravel or 3/4" Crushed Stone and give the surface a crown so water runs to both edges. Where a spot stays wet, a strip of #57 Crushed Stone along the edge lets water drain down rather than across.^[1]

Asphalt Millings are another option for a long drive. They bind into a firm, dark surface as traffic and summer heat press them together, and they shed rain off the top once rolled tight.^[1]

A patio that floods every storm is worse than no patio. Raise the finished surface a little above the surrounding lawn, lay fabric over firm soil, and pack Road Base or 3/4" Crushed Stone in thin lifts. Screed Concrete Sand on top, set the pavers, lock the edges and pitch everything away from the house so water clears before the next shower.^[1]

For a backyard play area, Playground Sand over a thin layer of Drain Rock dries quickly after rain, and Wood Chips make a softer surface under swings. Edge both with timber or stone so storms do not carry them across the lawn.^[1]

Beds, stone and the planting calendar

Pea Gravel and River Rock are both rounded stones, but they suit different places in a wet yard. Pea Gravel is small and smooth, comfortable underfoot and easy to rake. It makes a fine path or sitting area, though it scatters in a hard rain on a slope and needs firm edging.^[1]

River Rock is larger and heavier, so storm water flows around it instead of moving it. That makes it the better choice for borders under roof edges, dry creek beds and downspout outlets, where water hits hardest.^[1]

Many wet yards use River Rock where water runs, Pea Gravel where people walk, and shredded mulch in the planted beds between them.^[1]

The W Memphis station logs 58 days a year with a low of 32 F or colder. Its median last spring freeze is March 19, and its median first fall freeze is November 10. Most of those cold nights are light, but a wet base that freezes can still lift and loosen stone.^[1]

Plant tender flowers and vegetables after mid March, once the spring freeze date has passed, and set out shrubs and trees in fall. Raised beds filled with Garden Soil keep roots above wet ground after a downpour, and Topsoil levels low spots in a lawn before seeding.^[1]

Mulch protects soil from pounding rain. Brown Shredded Mulch or Red Mulch knits together and resists washing, while Wood Chips suit paths and play areas. Keep mulch a hand's width from stems and trunks so bark can dry between storms.^[1]

Homes in ZIP 38103

The Census counts 9,303 housing units in ZIP 38103. Detached single-family houses make up 19 percent of them, and the median home was built in 1999. Owners live in 32 percent of the occupied homes.^[4]

Memphis as a whole has 289,887 housing units. Detached houses make up 60 percent of the city's housing, and the median build year is 1970.^[4]

For its own roads, the Tennessee Department of Transportation specifies a crushed stone course known as Mineral Aggregate Base, Type A, in Section 303 of the Standard Specifications for Road and Bridge Construction (April 1, 2026).^[5]