Gravel, Stone, Soil and Mulch Delivery in New York, NY

Ground Mapped Mostly as Urban Land

The USDA soil survey maps Urban land, till substratum, 0 to 3 percent slopes at the ZIP's center point. Within that map unit, 92 percent is classed as urban land, which means pavement, buildings or fill laid over the native ground. Greenbelt is the main named soil series, yet it covers only 3 percent of the unit. Anyone opening a bed or a patio pad near the point should expect the first spade to turn up old fill, brick fragments or cinders before any natural soil.^[1]

Where native soil does appear, the survey calls the top mineral layer loam, well drained, in hydrologic group B with moderate infiltration. Shrink-swell in the top 100 cm rates low, 1.2 percent, so this loam barely moves as it wets and dries. Packed down, a loam like that makes a fair subgrade, and it lets water soak in at a steady pace under a gravel surface.^[1]

Deeper down, the state geologic map places the center point on the Manhattan Formation, undivided, a unit of pelitic schist, gneiss and amphibolite of Early Cambrian age. Schist and gneiss are hard, layered crystalline rocks, and a deep trench for a drain or a footing near the point can stop on them. Ground height at the center point measures 30 feet above sea level in the USGS elevation service.^[2],[3]

Rain, Snow and Freeze Dates Two Miles Away

The closest NOAA climate normals station is NEW York CNTRL PK TWR, NY, about 2 miles away. It averages 49.5 inches of precipitation and 29.8 inches of snowfall a year. All that water needs an exit, and on a small lot boxed in by walls, a bed of Drain Rock or #57 Crushed Stone under the surface gives runoff a place to sink instead of pooling against brick.^[4]

The low at that station drops to 32 F or colder on 67 days in an average year. Its median last spring freeze lands on March 30, and its median first fall freeze arrives on November 20. Raised beds filled with Garden Soil can go in once the spring date passes, and a paver base is best packed and finished well before the fall date so it never freezes while still soaked.^[4]

Shoveled snow ends up heaped along the side of a courtyard or a side path, and the melt from those heaps creeps back across the surface for days. A crowned path of Walkway Gravel sheds that melt to its edges. Under pavers, a thin bed of Concrete Sand lets each block settle evenly, and joints packed with Stone Dust Screenings keep water from sitting and freezing inside them.^[4]

Housing in ZIP 10001 Next to the Whole City

The Census Bureau's survey finds 18,356 housing units in ZIP 10001. Detached single-family houses make up just 1 percent of them, compared with 9 percent across New York, a city of 3,678,486 housing units. Half the homes in the ZIP were built before 1970, the median year, while the citywide median year built is 1952. Owners live in 24 percent of the ZIP's occupied homes.^[5]

With so few detached houses, outdoor work in a ZIP like this tends to happen in shared spaces: a building courtyard, a run of rooftop planters, a garden behind a ground-floor shop, or a renovation site that needs fill. Garden Soil blended with Compost suits planters on a roof or terrace, and a top layer of Black Shredded Mulch or Brown Shredded Mulch holds moisture between waterings.^[5]

Basement waterproofing jobs finish with a backfill. The trench along the wall gets Drain Rock around a perforated pipe, then Fill Sand or Fill Dirt to close the top. A street tree pit takes Topsoil mixed with Compost, and a cap of Pea Gravel or River Rock keeps the soil from washing out onto the sidewalk during a heavy storm.^[4]

A Paver Patio Over Built Ground

Picture a courtyard patio laid near the center point. The dig strips the surface until it reaches firm ground, and since 92 percent of the map unit is urban land, that firm ground may be packed fill rather than native loam. Soft pockets come out and get replaced with Road Base, spread in thin lifts and run over with a plate compactor. Crushed Concrete does the same job and suits a city site that is already hauling broken slab away.^[1]

On top of the base, a screeded layer of Concrete Sand or Stone Dust Screenings sets the pavers at grade. Because the loam rates low for shrink-swell, at 1.2 percent, the subgrade will not shove the blocks up much from season to season, so the base mainly has to spread load and drain.^[1]

A gravel courtyard with no pavers is a choice between feel and drainage. #57 Crushed Stone drains fast but rolls underfoot, while 3/8" Crushed Stone or Walkway Gravel packs firmer and holds a chair leg. Stone Dust Screenings pack tighter still and leave a firm, fine finish over well drained loam.^[1]

Compost or Garden Soil for a Planter

Rooftop and terrace planters drain freely and dry out fast in wind and sun, even where the nearby station averages 49.5 inches of precipitation a year. Garden Soil is a ready blend made to fill a container or a raised bed straight from the load. Compost is an amendment rich in organic matter, meant to be mixed into soil rather than used on its own.^[4]

For a new planter, fill most of the depth with Garden Soil and work some Compost into the top. For an old bed whose soil has slumped and gone tired, a fresh layer of Compost each spring, after the March 30 median last freeze, brings it back. Topsoil suits beds at ground level where the goal is to raise grade or patch a lawn, and it weighs more than Garden Soil, which matters on a roof.^[4]

The State Base Standard and Bigger Sites

The New York State Department of Transportation names Subbase Course, Type 2, Section 304, in its Standard Specifications as the aggregate layer it builds under state roads. Engineers who design to state work know that section by name. For a private job, the buyer or the engineer chooses the material from the drawings, and Gravel Valet delivers it by its plain name.^[6]

On ground mapped at 0 to 3 percent slopes, site work mostly means leveling rather than cutting into a hill. A lot being prepared for a new foundation can use Fill Dirt to raise low spots, #4 Crushed Stone or Railroad Ballast for a construction entrance that keeps mud off the street, and Asphalt Millings for a firm, dark staging pad that binds tighter as trucks roll over it.^[1]