Gravel Delivery in Missouri

Limestone ties our Missouri cities together. The geologic map lists limestone, shale, sandstone and coal at the Kansas City, Independence and Lees Summit center points. Saint Louis reads limestone alone. Columbia reads limestone, chert, dolostone and shale.^[1]

Limestone is the most common source of crushed stone. It breaks into blocky pieces with sharp edges that lock together when packed, and it screens cleanly into sizes from fine dust to large chunks. That is where #57 Crushed Stone, #67 Stone, 3/4" Crushed Stone, Road Base and Stone Dust Screenings come from in many parts of the country. Chert, as listed at Columbia, is a hard, glassy rock that can show up as sharp chips in a gravel mix.^[1]

Shale is the soft member of the group. It splits into thin flakes, breaks down when it gets wet and dry over and over, and makes a weak base. Where it shows up near the surface, as it can in the rock mix at Kansas City, Independence and Lees Summit, dig past it and bring in crushed limestone for anything that carries weight.^[1]

Soil covers that rock, and the USDA soil survey names it at three center points. Saint Louis reads silt loam, well drained. Columbia reads silt loam, poorly drained. Lees Summit reads silt loam, somewhat poorly drained. The texture is the same in all three, while the drainage class changes. On the poorly drained reading at Columbia, water lingers near the top, so a stone base there needs fabric and a way out for water. The well drained reading at Saint Louis is easier ground.^[2]

Ground heights differ from east to west. The center point of Saint Louis stands 470 feet above sea level and Kansas City's 750 feet. Columbia reads 840 feet, Independence 880 feet and Lees Summit 990 feet. Each reading is a single spot, and hills and creek valleys move any one lot well away from it. Notice where runoff gathers on your own lot before you pick the line of a drive or a drain.^[3]

The Missouri Department of Transportation calls the stone layer under its pavements Aggregate Base Course, Type 1 Aggregate, Section 304, in the Missouri Standard Specifications for Highway Construction (2026). A home driveway is not held to that standard. Its core idea still helps: graded crushed stone, compacted in layers, carries weight far better than loose rock.^[4]

Winter cold varies across the state. The weather station used for Independence logs 113 days a year at 32 F or colder, and the Columbia station 101 days. Lees Summit's station logs 96 days and Kansas City's 93 days. Saint Louis logs the fewest, at 79 days. Many of those days warm above freezing in the afternoon, so a yard can be hard at dawn and soft by lunch.^[5]

Snow is light to moderate. The Columbia station averages 16.5 inches of snowfall a year, Independence 13.2 inches and Kansas City 11.0 inches. Clear and mark the drop spot before a winter load, and stake the edges of the drive so the driver can see where the hard surface ends.^[5]

Rain matters more than snow for a truck on a lawn. The Independence station averages 44.7 inches of precipitation a year and Saint Louis 43.9 inches. Columbia reads 41.4 inches, Lees Summit 38.3 inches and Kansas City 38.1 inches. Silt loam turns slick when soaked, and on the poorly drained reading at Columbia it can stay soft for days. A paved drop spot is the safe choice after a storm.^[2],[5]

Hilly lots need a plan for where the pile lands. Set it at the top of the job so each wheelbarrow load rolls downhill. A steep, wet drive can be hard for a loaded truck to climb, so tell Gravel Valet about the slope. A dump bed also needs open air to lift, so look for wires and low limbs over the drop spot.^[3]

Protect what sits under the pile. On grass, a tarp keeps fines out of the turf. On light concrete, keep Topsoil, Compost and wet silt off the surface, since they can stain. Clean stone such as #57 Crushed Stone can sit right on a paved pad.^[2]

Driveways top the list. On the well drained silt loam at the Saint Louis center point, dig out the sod, compact the ground and lay fabric before the base. Pack Road Base or Crushed Concrete in thin lifts, then finish with 3/4" Crushed Stone, #57 Crushed Stone or Driveway Gravel. Crown the drive so rain runs to the edges.^[2]

Wet ground needs a deeper build. On the poorly drained silt loam at the Columbia center point, where the station logs 101 days a year at 32 F or colder, water trapped in the base can freeze and lift it. A bottom layer of #4 Crushed Stone or 1-1/2" Crushed Gravel lets that water drain away. A side ditch lined with Drain Rock carries it off.^[2],[5]

Drainage projects follow close behind. A French drain filled with #57 Crushed Stone around a perforated pipe and wrapped in fabric moves water away from a basement wall on somewhat poorly drained ground like the Lees Summit reading. Riprap armors a creek bank or a ditch outlet on a hilly lot where storm water runs fast.^[2],[3]

Rural lanes and farm drives are common outside the bigger cities. A long lane takes a lot of material, so many owners build the lower course from Crushed Concrete or Asphalt Millings and top it with Driveway Gravel. Asphalt Millings pack hard in summer heat and shed rain well. On a lane that crosses a low spot, a culvert bedded in #57 Crushed Stone, with Riprap at each end, keeps the road from washing out in a heavy storm.^[5]

Silt loam makes good garden soil, so beds are a popular job. Raise new beds with Topsoil or Garden Soil and mix in Compost. Cover them with Brown Shredded Mulch, Red Mulch or Wood Chips to hold moisture through a hot summer. River Rock and Pea Gravel suit a strip along a foundation.^[2]

Patios and walks use finer stone. Pavers sit on compacted Road Base with a thin layer of Concrete Sand or Stone Dust Screenings on top. Walkway Gravel and #89 Crushed Stone make a firm, small-stone path. Fill Dirt and Fill Sand handle rough grading first, and Mason Sand fills the joints between pavers once they are set. Edge every path with steel or stone so the gravel stays where you put it. Our area calculator turns each layer into tons.^[1]