Bulk Aggregates for Drainage in Devon, PA

Pennsylvania Rock Supply handles gravel and aggregate delivery in Devon, PA, and most of the work here starts with water. Ground in this part of Chester County runs from loamy upland soil to heavy clay in the limestone valleys, and heavy summer storms send roof and driveway runoff across it fast.

That shapes what you order. A driveway or patio base usually wants 2A modified, the crushed stone with the fines left in that compacts hard. Anywhere water has to move, you want washed stone instead.

Materials for Devon Projects

Drainage is the deciding factor on most jobs around here. Washed stone has no fines, so water passes straight through it instead of sitting against a foundation or under a slab. The list below runs from the coarsest clean stone down to the fine material, with what each one does.

For a French drain, a drywell or a downspout run, 2B is the usual pick. It is the same size many yards call #57 stone, a clean washed stone that lets water through and will not pack hard. #67 stone does the same job where a slightly smaller clean stone fits the trench better.

At the coarse end, #4 Crushed Stone goes under a drain or a soggy subgrade to firm it up before anything else. At the fine end, Screenings pack firm for paver and flagstone bedding and for pipe bedding.

Once drainage is handled, the base and surface go in. 2A Modified is the standard Pennsylvania base stone for driveways, parking pads and shed bases. Driveway Gravel surfaces an existing drive or tops a compacted base.

Delivery to Devon and the Surrounding Area

Pennsylvania Rock Supply delivers bulk material across Chester County, including Devon, West Chester, Phoenixville, Coatesville, Downingtown and Exton. You order online and pick your delivery date at checkout.

Choose your quantity by the ton or by the yard, then use the calculator to size the load to the area you are covering. A dump truck delivers to the site, so it helps to know where you want the pile set down before the truck arrives.

Ground and Conditions in Devon

Base, driveway and paver work here runs from spring, once the ground has thawed and dried, into late fall. Do not put base stone down on frozen, soft or muddy ground. Wait for it to dry rather than working over it.

Winters bring repeated freeze-thaw cycles. Frost does not reach as deep here as in most of the state, but a thin or poorly drained base can still heave and break up. Municipalities set frost depth at about 30 to 36 inches, and the City of Philadelphia uses 30 inches.

Storm runoff from paved and built-up ground scours stream banks and washes out ditches, culvert outlets and sloped gravel drives. Over the limestone valleys, runoff concentrated from roofs, gutters and drives can open sinkholes. That is why clean washed stone and a properly sized drainage layer matter more here than in most of Pennsylvania.

Order Bulk Stone and Soil for Your Devon Project

Pennsylvania Rock Supply delivers 2A modified, clean washed stone, sand and soil throughout Devon and Chester County. Choose your material, set your quantity with the calculator, and pick a delivery date at checkout. Place your order online and get your aggregate on site.