Bulk Gravel and Stone Delivery in Knox County, ME

Order gravel, stone and aggregate delivery in Knox County, ME by the ton or by the yard. Maine Rock Supply delivers bulk material across the MidCoast and Islands, from Rockland and Camden to Warren, Union and the island towns.

Start with Type A gravel, the crushed gravel Maine calls the base course.

Thin stony till over ledge is common ground in this county, so a base course has to carry the load.

Materials Delivered in Knox County

Type A gravel is the crushed gravel that carries a driveway, a parking pad, a camp road or a shed base.

Town street standards call the same material out the same way. Order Type A Gravel when you want a compacted base under a drive or pad.

Below the base course, Bank Run Gravel is unprocessed pit gravel used for bulk fill, raising grade and rough subbase. It comes out of the pit as it lies, so it is a filler course rather than a finished driving surface.

Fill Dirt, also called common borrow, does the same job for backfill and raising grade.

On top, Driveway Gravel is the 3/4 inch crushed gravel Maine yards sell as the running surface on gravel drives and camp roads. 3/4" Crushed Stone is the washed size for drainage trenches, drywells and pipe bedding, where water has to shed rather than sit.

For flatwork, Stone Dust beds pavers, flagstone and patios. 3/8" Natural Pea Gravel, which Maine yards call pea stone, suits walkways, dog runs, play areas and pipe bedding.

Riprap armours shore and stream banks, culvert outlets and ditch checks, sold in ranges such as 6 inch and 12 to 24 inch.

For planting, Top Soil is screened loam, the Maine trade name, used for lawn repair, seeding and finish grading. Garden Soil is the richer blend for raised beds and vegetable gardens.

Shredded Mulch covers beds, borders and tree rings.

Choosing the Right Material

Waldo County and Lincoln County share Knox County's ground region: thin stony till over granite and metamorphic ledge on the ridges and peninsulas, with marine clay and silt in the valleys and coves. The ground is the same across all three, so the material choice follows the same logic.

Pick the course by what sits under it. Ledge and till drain freely and take a Type A base directly.

Where marine clay fills the low ground, water sits at the surface, so a clean washed stone drainage layer matters more than base thickness.

• Base under a drive or pad: Type A Gravel.
• Rough fill under that base: Bank Run Gravel or Fill Dirt.
• Running surface on a gravel drive: Driveway Gravel.
• Drainage trenches and drywells: 3/4" Crushed Stone or Drain Rock.
• Bedding under pavers or flagstone: Stone Dust.
• Walkways and play areas: 3/8" Natural Pea Gravel.
• Shore and bank protection: Riprap.

Ground Conditions Across Knox County

Across the Midcoast peninsulas and Penobscot Bay, the ground is thin stony till over granite and metamorphic ledge on the ridges, with marine clay and silt filling the valleys and coves. A base course laid over that mix can pump and rut when the clay holds water.

Ledge close to the surface gives water nowhere to go. Where marine clay fills the low ground between ridges, it holds water at the surface through snowmelt and mud season.

A clean washed stone layer under the base gives that water somewhere to move.

Erosion here comes from wave action and storm surge on an elaborate shoreline, scour at culverts and stream crossings on steep short runs to the sea, and clay bank slumping along the tidal rivers. Riprap at outlets and banks limits the damage.

Work runs from the end of mud season into late fall. Island and peninsula access narrows the shoulder seasons at either end, so plan the load around the ground and the crossing.

Winters are cold but moderated a little by the bay, with repeated freeze and thaw and spring frost heaves in gravel drives, camp roads and unpaved landings. The local building official sets footing depth.

Delivery Across Knox County

Order online and choose a quantity by the ton or by the yard. Each product page has a calculator to help you size the load before you order.

Pick a delivery date at checkout and a dump truck tips the material on site.

Delivery covers Rockland, Camden, Rockport, Thomaston, Warren, Union, Hope, Washington, South Thomaston, Owls Head, Cushing, Friendship, Vinalhaven and North Haven. Bulk loads arrive as one tipped pile, so leave room where the truck can reach.

Order Bulk Gravel and Stone in Knox County

Size the load on the product page calculator, then order by the ton or by the yard. Type A gravel, washed stone, stone dust, loam and mulch all deliver across Knox County.

Place your order online and a dump truck tips it on site.