Large River Rock and Bulk Aggregates for Emmaus, PA

Start with the calculator to size your load, then pick the stone. Pennsylvania Rock Supply handles gravel and aggregate delivery in Emmaus, PA, from a single pallet of 2A modified to full truckloads of rip rap for a washed-out bank.

Emmaus sits where steep sandstone ridges drop into valleys floored by shale and limestone, so runoff has somewhere to go and it moves fast. That shapes what you order here.

Materials for Emmaus Projects

Most of the calls we get from this side of Lehigh County are about water. Runoff comes off the ridge slopes, scours the ditch along the drive, and cuts the bank at the culvert outlet. Coarse, clean stone is what fixes that, and it starts with the big sizes.

Coarse stone for slope, swale and bank protection

Rip rap is the armoring grade. Pennsylvania yards sell it by R-number, with R-4 sized for ditches and culvert outlets and the larger R-5 through R-7 sizes for stream banks and slope faces. It is heavy, angular and stays put when water hits it.

Railroad ballast is the other heavy option. It is coarse, clean and open, so it works for hard standing and severe drainage where you need water to drop through fast.

For underdrains and subgrade stabilization, #4 stone is the large clean grade to spec. It goes under a culvert outlet or a construction entrance and lets water move without clogging.

Drainage stone and base stone

2B stone is the workhorse for French drains, downspout runs and the backfill behind a retaining wall. It is washed 3/4 inch crushed stone with no fines, so water passes through and it never packs hard. If a yard quotes you #57 stone.

For a driveway, parking pad, shed base or patio base, you want 2A modified. It is crushed stone with the fines left in, so it compacts hard and holds. That is the standard Pennsylvania base stone, and it is what a local contractor means by modified stone.

Screenings, also called stone dust, are the fine end of the range. They pack firm under pavers and flagstone and bed a pipe nicely.

• RipRap for ditch, bank and culvert outlet armoring
• Railroad Ballast for hard standing and severe drainage
• #4 Crushed Stone for underdrains and subgrade stabilization
• 2B Stone for French drains and wall backfill
• 2A Modified for driveways, pads and shed bases

Delivery to Emmaus and the Surrounding Area

You order online, choose your quantity by the ton or the yard, and pick a delivery date at checkout. That date is yours to set, so you can line it up with when your crew and your equipment are on site.

A dump truck backs in or tailgates the load where you want it. Have the drop spot clear and reachable, and think about overhead lines, low branches and soft ground before the truck arrives.

We deliver across Emmaus and the rest of Lehigh County, including Allentown, Whitehall, Breinigsville, Catasauqua and Slatington. If your site is on a tight street or a long gravel lane, tell us where the truck should stop.

Ground and Conditions in Emmaus

Base, driveway and paver work runs from spring, once the ground has thawed and dried, into late fall. That window matters here. Base stone should not go down on frozen, soft or muddy ground, because it will pump and never compact the way it should.

Cold winters bring repeated freeze-thaw cycles, and those heave a thin base or one that holds water. Frost depth in this part of Pennsylvania is commonly about 36 inches, set by each municipality, so check with your code official on footing depth. The practical takeaway for a drive or a pad is a base that drains and compacts, not one that traps water.

In the limestone and dolomite valleys, runoff concentrated from roofs, gutters and drives can open sinkholes. Move that water away from the structure with clean stone and a proper outlet. Where the ground is folded bedrock with thin, stony soil, expect to build up rather than cut down.

Order Bulk Stone for Your Emmaus Project

Pennsylvania Rock Supply delivers 2A modified, 2B stone, rip rap and the rest of the load to Emmaus and the surrounding Lehigh County area. Size your quantity with the calculator, pick a delivery date at checkout, and we will bring it to your site. Place your order online when you are ready.