Order 2A Modified and Crushed Stone in Forest County, PA
Pennsylvania Rock Supply offers gravel, stone and aggregate delivery in Forest County, PA. If you are building a drive, a pad or a drainage run here, 2A modified is the base stone most local buyers start with. It is crushed stone with the fines left in, so it compacts hard under a driveway, a parking pad or a shed base.
Forest County ground is mostly thin, stony soil over sandstone, siltstone and shale, cut by steep valleys. That shapes what you order and how deep it goes in.
Delivery across Forest County
You order online and pick your quantity by the ton or by the yard. If you are unsure how much to buy, use the calculator to size the load before you check out.
At checkout you choose a delivery date, and a dump truck brings the stone to your site. Bulk loads are dumped where the truck can reach, so think about where you want the pile to land before delivery day.
Delivery covers Marienville, Tionesta and Clarington, along with the rest of Forest County.
Materials delivered in Forest County
Order by the local name you know. Here is what each material does on a Forest County job.
2A modified is the trade name for a 2A-type base with extra fines added. Local yards still use the older names alongside those numbers, 2B for #57 and 1B for #8.
For drainage jobs, drain rock covers French drains, downspout runs and drainage behind walls. For decorative beds and dry creek work, river rock and large river rock are the usual picks. For lawns and bed prep, top soil comes screened to take out stones and roots.
Ground conditions across Forest County
This county sits in the north-central high plateau and Allegheny Mountains zone. The ground is sandstone, siltstone, shale and conglomerate under thin to moderately deep, stony soils on broad uplands and wide ridges, cut by deep, steep-sided valleys. Coal beds and old mine ground show up in parts of the zone.
That soil is often too thin to support a base on its own. On a stony upland, plan on a base that spreads the load instead of one that just fills a hole. Old mine ground and soft spots can settle, so compact in lifts and check the subgrade before you build up.
Rain and snowmelt run fast off the steep valley sides. That sends concentrated flow into narrow valleys, roadside ditches, culverts and low drives, and it gullies gravel roads and scours stream banks. Clean stone such as 2B keeps that water moving, where a fine base stone would hold it.
Cold winters bring repeated freeze-thaw cycles, and the higher ground runs cooler and wetter than most of the state. A thin or poorly drained base breaks up under that. Frost depth is commonly 36 to 42 inches, set by each municipality, with the deeper figures in the mountains. Winter snow and frozen ground limit base, driveway and paver work to the thawed, dry months from spring into fall. Base stone should not go down on frozen or muddy ground.
Choosing the right material
Neighboring counties sit on similar ground, so the right material shifts with the project more than the address. Jefferson County is in North Central Pennsylvania and spans the Western Pennsylvania plateau hills and this same north-central high plateau and Allegheny Mountains zone. Where the ground matches Forest County, the base and drainage choices carry over, and clean stone still handles the wet spots.
Clarion County spans the same two zones, so treat it the same way and let the job decide. Venango County reaches into Northwestern Pennsylvania and spans this zone plus the Western Pennsylvania plateau hills and the Glaciated northeast and northwest. That glaciated ground is a different story from the stony uplands here, so drainage and base depth can change from site to site.
In Forest County, the pattern holds: 2A modified for drives, pads and any surface that carries weight, clean stone for anything that has to drain, and screenings for bedding under pavers.
Order 2A modified for your Forest County project
2A modified is the base stone that carries most drives, pads and shed bases in Forest County, with clean stone for the drainage work around it. Order online by the ton or yard, size the load with the calculator, and choose your delivery date at checkout. Place your order and the truck brings it to your site.