Large River Rock and Bulk Aggregates for Newtown Square, PA

Pennsylvania Rock Supply handles gravel and aggregate delivery in Newtown Square, PA for driveways, drainage and yard projects. The base stone most jobs here start with is 2A modified, crushed stone with the fines left in so it compacts hard.

Ground across this part of Delaware County is mixed Piedmont, and storm runoff off built-up ground is what drives most stone orders. Erosion work starts with coarse, clean stone.

Materials for Newtown Square Projects

Runoff from paved and built-up ground scours stream banks and washes out ditches, culvert outlets and sloped gravel drives. Coarse, clean stone is the material that holds those spots. Listed below from coarsest to finest, with what each size is good for.

• RipRap: stream bank, ditch, culvert outlet and slope armoring. Pennsylvania yards sell it by R-number, with R-4 for ditches and the larger R-5 to R-7 sizes for banks.
• #4 Crushed Stone: large clean stone for construction entrances, subgrade stabilization and underdrains.
• Railroad Ballast: heavy coarse clean stone for hard standing and severe drainage.
• Large River Rock: dry creek beds and heavier decorative and erosion work.

Base and drainage stone covers the other half of the work. 2A Modified is the standard base for driveways, parking pads, shed and patio bases, and it packs hard once compacted. Where water has to move through instead of sitting, use 2B Stone, a clean washed stone with no fines for French drains, retaining wall backfill and wet-area drive bases.

Finer grades finish the job. Screenings pack firm under pavers and flagstone and bed pipes. 3/8" Natural Pea Gravel is rounded rather than crushed, so it stays loose underfoot on walkways and play areas.

Delivery to Newtown Square and the Surrounding Area

Order online, pick your material, and size the load by the ton or yard with the calculator on the product page. Add the quantity to your cart and choose a delivery date at checkout. A dump truck then brings the load to your site.

Delivery covers Newtown Square and the rest of Delaware County, including Upper Darby, Haverford, Chester, Drexel Hill and Springfield. Tell us where the truck can back in and where the pile should land before the date arrives.

Ground and Conditions in Newtown Square

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, because it will not compact and the surface will move under traffic later.

Winters bring repeated freeze-thaw cycles. Frost depth here runs about 30 to 36 inches and is set by each municipality, so a thin or poorly drained base can still heave and break up even though frost does not reach as deep as in most of the state.

The soils under foot vary: loamy ground weathered from schist and gneiss on the uplands, red shale and sandstone in the lowlands, and limestone valleys whose soils weather to heavy clay. Over limestone, runoff concentrated from roofs, gutters and drives can open sinkholes, so send water away from the house instead of into the yard.

Questions About Stone and Delivery

What stone should I use for drainage in Newtown Square?

Use clean stone with no fines, because fines pack tight and stop water. 2B Stone is the usual choice for French drains and wall backfill. For a smaller clean stone than #57, use #67. Coarse grades such as #4 Crushed Stone suit underdrains and heavy flow.

What should I have ready when the truck arrives?

Clear a path wide enough for a dump truck and mark the spot where you want the pile. Check for low wires, soft turf and anything in the way. Someone should be on site to direct the driver, and a tarp or cover helps if you plan to leave the material exposed for a while.

Order Bulk Aggregate Delivery in Newtown Square

Pennsylvania Rock Supply delivers bulk gravel, stone, sand and topsoil across Newtown Square and the rest of Delaware County. Pick your material, size the load with the calculator, and choose a delivery date at checkout. Build your order online and have it dropped where you need it.