2A Modified, Sand and Gravel Delivery in Clinton County, PA

What do you order for a driveway, a patio base or a French drain in Clinton County? For most jobs here, the answer starts with 2A modified. Pennsylvania Rock Supply sells gravel, stone and aggregate delivery in Clinton County, PA, and 2A modified stone is the base material buyers in Lock Haven, Mill Hall and Renovo ask for first.

It is crushed stone with the fines left in, so it compacts hard under a drive, a parking pad or a shed. Lock Haven and Mill Hall sit in limestone and dolomite valleys, where runoff off steep ridge slopes can open sinkholes, so the base and the drainage both matter.

Delivery across Clinton County

You order online, pick your material, and size the load by the ton or the yard. A calculator is built in, so you can match the quantity to your job before you check out.

Choose a delivery date at checkout and a dump truck brings the load to the site. Bulk deliveries reach Lock Haven, Mill Hall, Renovo, Beech Creek, Loganton, North Bend and Westport, along with the rural roads between them.

Have the drop spot clear before the truck arrives. Mark any septic lids, well heads or buried lines, and keep cars and equipment out of the way so the pile lands where you want it.

Materials delivered in Clinton County

Local yards still use the older names, so 2B means the same clean stone as #57 and 1B means #8. Below is what to order by project type.

2A modified, also called modified stone, is the workhorse. It goes under asphalt and concrete drives, gravel drives, patios, shed pads and parking areas.

For drainage, order #57 Stone or #8 Crushed Stone, the clean stone local yards call 2B and 1B. For decorative beds and dry creek beds, River Rock and Large River Rock work well. Beds get Shredded Mulch, and raised beds get Garden Soil.

Ground conditions across Clinton County

Clinton County spans two ground zones, and each one changes how you build. Both zones bring cold winters and repeated freeze-thaw cycles that heave a thin base or one that holds water.

In the Great Valley and Ridge and Valley, including the anthracite coal region around Lock Haven, Mill Hall, Beech Creek and Loganton, bedrock is folded. Long sandstone ridges carry thin, stony soils, while the valleys are floored by shale or by limestone and dolomite that weather to clay. In the coal fields, old strip mines and waste piles break up the ground.

Runoff off steep ridge slopes scours roadside ditches, culvert outlets and gravel drives, and stream banks cut back during heavy rain and snowmelt. In limestone and dolomite valleys, concentrated runoff from roofs, gutters and drives can open sinkholes. Riprap and clean drainage stone help at outlets and banks.

In the North-central high plateau and Allegheny Mountains around Renovo and North Bend, sandstone, siltstone, shale and conglomerate sit under thin to moderately deep stony soils. Rain and snowmelt run fast off steep valley sides into narrow valleys, ditches and culverts. That flow gullies gravel roads and scours stream banks, and extreme rain or rain on snow can set off debris slides on mountainsides.

Frost depth is commonly about 36 inches in the valley zone, set by each municipality, and 36 to 42 inches in the mountains, with the deeper figures up high. That is a footing depth set by the building official, so check with your code office.

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. In the mountain zone, winter snow and frozen ground limit that work to the thawed, dry months.

Choosing the right material

How the ground sits next door tells you a lot about what to order. Clearfield County is next to Clinton County and also reaches into the North-central high plateau and Allegheny Mountains, so mountain jobs there look much the same. Its other zone, the Western Pennsylvania plateau hills, is different ground, so base and drainage choices shift with it.

Potter County shares the North-central high plateau and Allegheny Mountains zone, so the ground is similar and the comparison is about typical projects instead. Potter also takes in the Glaciated northeast and northwest, where soils and drainage behave differently again. Lycoming County shares both of Clinton County's zones, so the base and drainage choice is close to the same.

In all three, 2A modified anchors the base, clean stone handles the water, and riprap protects slopes and outlets. Order by what the site does with water, not by habit.

Order 2A Modified for Your Clinton County Job

2A modified is the base material most Clinton County jobs start with, whether you are rebuilding a drive in Mill Hall, bedding a patio in Loganton or setting a shed pad near Beech Creek. Add clean stone, sand, topsoil or mulch to the same order. Size your load online and pick a delivery date that fits your schedule.