Gravel, Stone, Soil and Mulch Delivery in Boston, MA

Snow, salt and a long cold season

The NOAA normals station at Boston Logan Intl AP, MA, about 3 miles away, averages 49.2 inches of snowfall and 43.6 inches of total precipitation a year. Snow piled beside a walk or drive melts slowly, refreezes at night and soaks whatever lies beneath it in spring.^[1]

Logan records 92 days a year with a low of 32 F or colder. The median last spring freeze there is April 4. The median first fall freeze comes on November 9. Between those cold nights come thaws, and each thaw lets water into the top of any surface before the next frost locks it in again.^[1]

Every material choice here should answer one question: what happens when it is wet and then frozen. Open, clean stone handles it best, packed bases with good drainage come next, and anything that holds water, such as a thin layer of fine soil under pavers, will heave.^[1]

Silt loam, a dense layer and old rock

At the center point of ZIP 02108, the USDA survey maps Newport silt loam on 8 to 15 percent slopes. Newport soil makes up 85 percent of the unit, and only 2 percent is mapped as urban land, so the native profile is largely intact at that spot. The ground there sits 80 feet above sea level.^[2],[3]

The survey calls Newport well drained and puts it in hydrologic group B, a moderate rate of infiltration. Its shrink-swell rating is low, with linear extensibility of 1.5 percent across the top 100 cm. A dense, compact layer, termed densic material, begins about 26 inches down, and water slows sharply when it reaches that layer.^[2]

That dense layer matters for anything dug deep. A planting hole, a post footing or a drain trench that reaches it can fill with water and hold it. Keep drain lines above it where possible and give them a steady fall to an outlet.^[2]

The geologic map at the center point shows the Cambridge Argillite, a Neoproterozoic unit of argillite with quartzite, sandstone and conglomerate. Argillite is a hard, fine-grained rock that splits into slabs. It lies under the soil and the dense layer and does not affect most yard projects directly.^[4]

Builders sometimes find broken rock or old stone fill when digging near a foundation. Large pieces can be reused as wall stone or as the core of a dry well, while small debris should come out of any area that will carry a patio or path.^[4]

Where a slope of 8 to 15 percent meets a winter with this much snow, the main task is holding soil and stone in place during spring melt. Terracing with low stone walls, backfilled with #57 Crushed Stone, slows runoff and gives each level a flat bed for planting.^[1],[2]

Parking pads, walks and courtyards

A parking pad that must be cleared all winter needs a dense, interlocked surface. Over silt loam, start with a woven geotextile, then pack Road Base in thin lifts until it stops moving under the plate. A finish of Driveway Gravel bonds with the base and stands up to a shovel or small plow, while loose round stone would end up in the snowbank.^[1],[2]

Frost heave starts where water collects. Pitch the pad toward the street or a planting bed, keep the surface layer thin, and avoid low edges where melt can pond against the stone. In spring, rake the surface smooth and add fresh gravel to any soft patch before it spreads.^[1],[2]

A paver or brick patio on silt loam needs a base that drains, because silt holds water and lifts when it freezes. Dig down to firm soil, lay a geotextile, and pack Road Base or 3/4" Crushed Stone in thin lifts. Set the pavers on a thin bed of Concrete Sand, sweep sand into the joints, and lock the edges with a solid restraint.^[1],[2]

Small courtyards may have no easy outlet for water, so pitch the surface toward a planting bed or a dry well filled with Drain Rock. Even a slight fall moves meltwater off the brick before night frost turns it to ice.^[1],[2]

Low shrink-swell in this silt loam means walks and patios rarely crack from soil movement alone. When brick lifts, frost and trapped water are the usual causes, so drainage is the fix.^[2]

Narrow side passages and dog runs suit Pea Gravel or 3/8" Crushed Stone over fabric. Each drains freely in a thaw and are easy to rake level again in spring.^[2]

Choosing between Pea Gravel and 3/8" Crushed Stone

These two look similar from a distance but behave differently underfoot. Pea Gravel is round and smooth, comfortable to walk on and pleasant around a bench or fire pit. Because the stones roll, it stays loose, and it drifts on a slope or spills onto a lawn without a firm edge.^[2]

3/8" Crushed Stone is angular, so the pieces lock together and form a firmer path that a wheelbarrow or bicycle can cross. It holds its place better on the 8 to 15 percent grades mapped at the center point, though it feels sharper to bare feet.^[2]

In snow country, angular stone has one more edge: a shovel glides over it without dragging the surface away. For a walk that gets cleared all winter, choose the crushed stone. For a sitting nook that sleeps under snow, Pea Gravel works fine.^[1]

Planting in a short season

With a median last spring freeze of April 4 at Logan, cool-season crops and shrubs can go in soon after, while tender plants wait for warmer soil. Shallow planting suits ground with a dense layer about 26 inches down: wide holes, native soil mixed with Compost and a mulch ring keep roots spreading near the surface where water drains.^[1],[2]

Before the median first fall freeze on November 9, refresh the mulch on beds and around shrubs. A layer of Brown Shredded Mulch or Wood Chips insulates roots against repeated freezing and keeps heavy, wet snow from packing down bare soil.^[1]

Homes in ZIP 02108

The Census counts 2,568 housing units in ZIP 02108, and just 1 percent are detached single-family houses. The median home in the ZIP was built in 1939 or earlier. Owners occupy 51 percent of the homes that are lived in.^[5]

Boston as a whole holds 310,625 housing units. Detached houses account for 12 percent of them, and the median build year across the city is 1947.^[5]

Garden beds in a dense neighborhood tend to be window boxes, tree pits and small walled yards. Garden Soil fills a box or planter straight from the load, and Black Shredded Mulch or Brown Shredded Mulch keeps the surface tidy and moist through a dry summer week.^[5]