Gravel, Stone and Soil Delivery in Albany, NY

Built-over ground on old shale

The USDA soil survey labels the center point of ZIP 12202 as Urban land. In that map unit, 85 percent of the ground is paved, built on or covered by structures. Whatever soil remains in a yard has likely been dug, moved and refilled more than once, so it can hold brick, cinders, gravel and pockets of clay in no set order.^[1]

Disturbed ground like that settles unevenly. A patch that looks firm may sit over loose fill from an old foundation or trench, and a patio laid on it without digging down to something solid can sink at one corner. Probe the ground with a steel rod before planning any hard surface.^[1]

The USGS state geologic map puts Normanskill Shale at the center point, a Middle Ordovician unit of shale, mudstone and sandstone. Shale of this kind splits into flat, thin plates and breaks down to clay at the surface, which is part of why fill dirt and imported soil are so common in older neighborhoods built on it.^[2]

Elevation at the ZIP's center point reads only 20 feet above sea level, low ground for an inland city.^[3]

Deep snow and long freezes

Weather normals come from the NOAA station at Albany AP, NY, about 8 miles away. It averages 40.7 inches of precipitation and 59.2 inches of snowfall a year.^[4]

Lows at the airport station drop to 32 F or below on 136 days in a typical year. That many freezing nights put any wet base through repeated heave and thaw, and the damage shows up as potholes, tilted pavers and loose stone each spring.^[4]

Albany AP has a median last spring freeze of April 27. The median first fall freeze there is October 15.^[4]

Ground work is easiest from late spring into fall, once the snow has gone and the soil has drained. Seed bare spots after the April date, and finish any base or paver job well before the October one so the stone has settled before the first hard freeze.^[4]

Snow piled beside a parking pad melts back across it on every warm day. A slight cross slope and a strip of Drain Rock along the low side keep that melt from soaking into the base.^[4]

Parking pads and side yards

Many projects in ZIP 12202 are small: a parking pad off an alley, a side passage between buildings, or a back courtyard. Dig out the old fill to firm ground, lay woven fabric, and build up in layers. Road Base or Crushed Concrete, compacted in thin lifts, gives a dense base that drains well enough to come through repeated freezes.^[1],[4]

Top a parking pad with 3/4" Crushed Stone or Driveway Gravel. Asphalt Millings work well where a darker, low-dust surface fits better next to brick buildings, and they pack firmly under steady parking. Edge the pad with timbers or steel so the stone stays off sidewalks.^[1]

Old curbs, retaining walls and neighboring foundations often sit right at the edge of a small lot. Keep excavation a safe distance from them, and compact the base by hand tamper where a plate compactor cannot reach.^[1]

For a narrow side yard, #57 Crushed Stone over fabric keeps the ground dry and clean and lets roof water soak away. Stone Dust Screenings make a smoother walking surface where a path runs to a back gate.^[4]

Digging in older city lots can turn up buried brick, old slabs and broken shale. Remove anything that rocks or moves under a boot, then fill the hole with compacted Road Base rather than loose soil, which keeps settling for years.^[1],[2]

Drainage where the ground is paved

With most of the map unit covered by pavement and roofs, rain has few places to soak in. The 40.7 inches a year recorded at the airport station has to go somewhere, and in a tight yard it often ends up against a foundation wall.^[1],[4]

A French drain is the usual fix. Cut a trench along the wet side, line it with fabric, lay a perforated pipe in a bed of Drain Rock or #57 Crushed Stone, and run it to a lower point or a dry well. Where downspouts empty onto a walk, a splash bed of River Rock slows the water and spreads it out.^[1]

Clean, washed stone matters most in a cold climate. Gravel with lots of fines holds water, and that water freezes and pushes up. Drain Rock and #57 Crushed Stone leave open spaces between the pieces, so water drains through before it can freeze in place.^[4]

Snowmelt adds to the load. Piles pushed off walks and pads sit against walls and fences, and as they melt the water seeps into whatever bare ground is left. Leave a band of washed stone between snow storage spots and foundations so the melt has a path away from the house.^[1],[4]

Raised beds and imported soil

On urban land the best garden soil is the soil that arrives in a truck. Raised beds filled with Garden Soil keep roots above old fill of unknown origin. Topsoil spread a few inches deep over compacted ground gives new grass a chance in a small yard.^[1]

Compost worked into the beds each spring adds organic matter that city fill lacks. A layer of Black Shredded Mulch or Brown Shredded Mulch after the April freeze date keeps beds moist through summer, and a fresh layer before the October date protects perennials over winter.^[4]

Raised beds warm earlier in spring than the ground around them and drain faster after a thaw, which helps where the airport station counts 136 days a year with a low at or below 32 F.^[4]

Mason Sand and Concrete Sand fill paver joints and bedding layers. Playground Sand suits a sandbox, and Wood Chips make a soft cover under a small play set.^[1]

Housing in ZIP 12202

Albany County holds ZIP 12202. The Census counts 5,404 housing units in the ZIP, and only 16 percent are detached single-family houses.^[5]

The median home in ZIP 12202 falls in the 1939 or earlier group, and owners live in 26 percent of the occupied ones.^[5]

The city of Albany counts 50,408 housing units, with detached houses at 28 percent. The citywide median year built is 1949.^[5]

Rowhouses and multi-unit buildings mean small yards and shared alleys. Bulk material for those spaces often goes in by wheelbarrow, so plan the drop spot close to the work area.^[5]

Houses from that era often come with narrow side passages and brick walks that have heaved over the decades. Lifting a sunken brick path, adding a compacted bed of Stone Dust Screenings and relaying the brick is a common small job in older neighborhoods.^[5]

The New York State Department of Transportation specifies Subbase Course, Type 2, in Section 304 of its Standard Specifications for its own roads.^[6]