Bulk Aggregates for Drainage in Coalport, PA

Pennsylvania Rock Supply handles gravel and aggregate delivery in Coalport, PA, and drainage is the job we get asked about most. On these hillsides, heavy rain and snowmelt run fast, and water soaking into clay layers on slopes is the main landslide trigger. Where your roof and drive runoff goes matters. 2A modified is the local base stone, and clean washed stone is what moves water.

You order online by the ton or yard, size the load with the calculator, and pick a delivery date at checkout.

Materials for Coalport Projects

Drainage work starts with clean stone. Clean means washed, with no fines left in, so water passes through instead of packing tight. Base work is the opposite: you want the fines, because they compact hard.

Here are the sizes, coarsest to finest, and what each one does.

For a French drain or a downspout run, 2B stone is the usual pick. It is the clean 3/4 inch stone Pennsylvania yards sell for drainage, and water moves through it. #57 Stone does the same work where a job is specified that way. Drain Rock covers the same ground for downspout runs and behind walls.

Where a ditch or a stream bank is washing out, RipRap is the answer. It is heavy coarse stone that stays put when water runs hard against it.

Once the drainage layer is in, cap it. 2A Modified is the base stone for driveways, parking pads and shed bases, and it compacts hard. Top a compacted base with Driveway Gravel for the wearing surface.

Finer work runs smaller. #8 Crushed Stone, the small clean chip yards call 1B, suits walkways and decorative topping. Screenings pack firm under pavers and flagstone. 3/8" Natural Pea Gravel stays loose underfoot on paths and play areas.

Delivery to Coalport and the Surrounding Area

Coalport sits in Clearfield County, and we deliver bulk material across the county, including DuBois, Clearfield, Curwensville, Beccaria and Osceola Mills.

Ordering is simple. Pick your material, choose a quantity by the ton or yard, and use the calculator if you are not sure how much the job needs. Then pick a delivery date at checkout that fits your schedule.

A dump truck brings the load to your site and places it where you want it. For a drainage job, think about where the pile should sit so you are not moving stone twice. On a hillside lot, that usually means close to the trench line.

Ground and Conditions in Coalport

This is the Western Pennsylvania plateau hills zone. The ground here is flat-lying shale, siltstone, sandstone, claystone and coal beds weathered into silty, clay-rich soils, on hilly ground cut by steep valleys. Many communities sit over old underground coal mines.

Base, driveway and paver work runs from spring, once the ground has thawed and dried, into late fall. Long wet spells and rain on snow are when hillside ground is most likely to move, so timing a delivery matters.

Winter brings repeated freeze-thaw cycles. Clay-rich soils that stay wet soften and heave, and a thin or poorly drained base breaks up under that. Frost depth is commonly about 36 inches, set by each municipality.

That is why drainage comes first here. Send roof and drive runoff somewhere it can leave the slope, then build the base on ground that drains.

Order Bulk Aggregate in Coalport

Pennsylvania Rock Supply delivers 2A modified, washed stone, sand and soil across Coalport and Clearfield County. Pick your material, size the load with the calculator, and choose a delivery date at checkout. Place your order online when you are ready.