Order 2A Modified and Crushed Stone in Philadelphia County, PA
For gravel, stone and aggregate delivery in Philadelphia County, PA, start with the load size. Pennsylvania Rock Supply sells bulk material by the ton or yard, and the calculator sizes your order before you pick a delivery date. Most jobs around here start with 2A modified, the crushed stone with the fines left in so it compacts hard. Philadelphia County sits on mixed Piedmont ground, so what you put down and how it drains both matter.
Ground Conditions Across Philadelphia County
Ground here is mixed Piedmont: loamy soils weathered from schist and gneiss on the uplands, red shale and sandstone in the lowlands, and limestone valleys whose soils weather to heavy clay. A narrow strip along the Delaware River is loose sand and gravel instead of rock. That mix changes how a base behaves from one job to the next.
Heavy summer storms and spring rain run off built-up ground, and municipal stormwater rules govern where that water goes. Over limestone, runoff concentrated from roofs, gutters and drives can open sinkholes, so drainage matters more than fill in those spots.
Storm runoff from paved and built-up ground scours stream banks and washes out ditches, culvert outlets and sloped gravel drives. That is armoring work, not base work.
Base, driveway and paver work runs from spring, once the ground has thawed and dried, into late fall. Base stone should not go down on frozen, soft or muddy ground. Winters bring repeated freeze-thaw cycles, so a thin or poorly drained base can heave and break up, even though frost does not reach as deep here as in most of the state. Frost depth runs about 30 to 36 inches and is set by each municipality; the City of Philadelphia uses 30 inches.
Materials Delivered in Philadelphia County
Material is organized below from coarsest to finest, with what each size is good for. Local yards still use the older Pennsylvania names alongside those numbers: 2B for #57 and 1B for #8.
2A modified is the trade name for a 2A-type base with extra fines added, and it is the base most Philadelphia County drives and pads are built on. Crusher run does the same compacting job with fines mixed in, though buyers here usually ask for 2A modified. For drainage, 2B stone and #57 stone are the same size under two naming systems, and #67 stone is the slightly smaller clean option for concrete and drainage work. Riprap handles the erosion side, and screenings bed pavers and flagstone.
Choosing the Right Material
Montgomery County and Delaware County sit in the same Southeastern Piedmont and Delaware River lowland zone as Philadelphia County, so the ground is similar and the base and drainage choices usually match. The typical projects differ more than the material does.
Bucks County spans more than one zone, covering both the Southeastern Piedmont and Delaware River lowland and the Great Valley and Ridge and Valley, including the anthracite coal region. That wider range means a base choice that works on Philadelphia County's mixed Piedmont ground may need a different drainage layer on the rockier ground next door.
On any of it, compacting base goes down over firm, drained subgrade, and clean stone goes where water has to move. Send the sizing question to the calculator rather than guessing.
Delivery Across Philadelphia County
Order online and the load is sized by the ton or yard before checkout. Pick a delivery date at checkout, and a dump truck brings the material to the site. Philadelphia is covered, along with the rest of the county.
Bulk delivery means the truck has to reach the drop point, so think about where the pile should land before the date arrives. Base stone, clean stone, sand, soil and mulch all move the same way.
Order Bulk Stone and Soil for Philadelphia County
Pennsylvania Rock Supply delivers 2A modified, clean stone, sand, soil and mulch across Philadelphia County. Size the load with the calculator, order online by the ton or yard, and pick your delivery date at checkout. When the ground is dry and ready, place the order and get the material on site.