How deep should a gravel driveway base be in Waldo County?

Depth depends on what is under the drive. Across the Midcoast peninsulas and Penobscot Bay, ledge sits close to the surface on the ridges, while marine clay holds water in the low ground. Both change how much base a drive needs. Bring your measurements to the calculator on each product page and order by the ton.

How much gravel do I need for my project?

Quantities are ordered by the ton or by the yard. Each product page has a calculator that helps you size the load for your project. Have your measurements ready before you order, then choose your quantity and pick a delivery date at checkout.

Waldo County Type A Gravel and Gravel Delivery, ME

Q: What is Type A gravel and what is it used for in Waldo County?

Type A gravel is a crushed gravel base gradation. In Waldo County it is used under driveways, parking pads, camp roads and shed bases. It is the compacted base course that a finer crushed gravel running surface, such as 3/4 inch driveway gravel, sits on.

For gravel, stone and aggregate delivery in Waldo County, ME, Maine Rock Supply sells bulk material by the ton and delivers it to your site. Type A gravel is the base course here, the crushed gravel that Maine driveways, parking pads and camp roads are built on.

Across the Midcoast peninsulas and Penobscot Bay, thin stony till sits over granite and metamorphic ledge, and marine clay fills the low ground between the ridges. Both shape what a base and a drainage layer have to do.

Ground Conditions Across Waldo County

Work in this part of the state runs from the end of mud season into late fall. On the Midcoast peninsulas and Penobscot Bay side, island and peninsula access narrows the shoulder seasons at either end, so timing a delivery matters.

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 driveway that stays soft in April is usually sitting on that clay, not on the gravel.

Erosion comes from the shoreline as much as the weather. Wave action and storm surge work an elaborate shore, culverts and stream crossings scour on steep short runs to the sea, and clay banks slump along the tidal rivers.

Riprap and clean drainage stone are the practical answers there.

Cold winters, moderated a little by the bay, bring repeated freeze and thaw and spring frost heaves in gravel drives, camp roads and unpaved landings. Across this part of the state, frost depth is commonly about 4 feet along the shore and deeper on the inland ridges.

The local building official sets footing depth.

Materials Delivered in Waldo County

Type A gravel is the Maine base course.

Type A and Type B are base gradations and Type D is the common gravel subbase gradation. Maine town street standards call the same materials out by those letters, and pits and yards sell them under them.

Order Type A Gravel for driveways, parking pads, camp roads and shed bases. It is the compacted base a finished surface sits on, and in Waldo County it is the letter a plan or a town standard will name.

Below the base, 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.

The running surface is Driveway Gravel, sold as 3/4 inch crushed gravel. It goes on top of a Type A base on gravel drives and camp roads.

Round stone, which Maine yards also list as River Rock, suits dry stream beds, drip edges and borders. Shredded Mulch covers beds, borders and tree rings, and Garden Soil fills raised beds where plain loam alone is too lean.

Choosing the Right Material

Waldo County sits on thin stony till over granite and metamorphic ledge, with marine clay and silt filling the valleys and coves and pockets of outwash sand and gravel between them. Knox County and Lincoln County share that same ground.

Kennebec County is different. Its lowlands carry Presumpscot marine silt and clay well inland up the river valleys, with sand and gravel river terraces and outwash above it and esker sand and gravel crossing the lowland.

That difference matters at the base. On a clay-heavy lowland, a clean drainage layer under the base does more work, and bank run used as fill holds water longer.

On Waldo County's till and ledge, the constraint is often shallow rock instead.

Match the material to the job. 3/4" Crushed Stone and Drain Rock handle foundation, curtain and french drains.

#4 Crushed Stone, sold as 1 1/2 inch stone, stabilizes soft, wet subgrade before a gravel course goes on.

For fill and finish work, Fill Dirt raises grade under a gravel course, and Mason Sand serves mortar, brick and block work. Stone Dust beds pavers and flagstone.

Delivery Across Waldo County

Maine Rock Supply delivers bulk aggregate across Waldo County, including Belfast, Winterport, Searsport, Lincolnville, Unity, Palermo, Stockton Springs, Searsmont, Frankfort, Burnham, Troy, Brooks, Morrill and Liberty.

You order online, choose a quantity by the ton or by the yard, and pick a delivery date at checkout. Each product page has a calculator to help size the load.

A dump truck then tips the material on site as one pile.

Plan around the season. Once mud season ends, the ground firms up and unpaved landings and camp roads take a truck more easily.

Late fall is the other window before freeze sets in.

Order Bulk Aggregate in Waldo County

Maine Rock Supply delivers bulk gravel, stone, sand, loam and mulch to Belfast, Winterport, Searsport, Unity and the rest of Waldo County. Choose your material, size the load by the ton or yard, and pick a delivery date at checkout.

Place your order online and a truck brings it to your site.

Bulk Aggregate Delivery Across Waldo County, ME