Gravel, Stone, Sand and Soil Delivery in Long Beach, CA

Dredged fill under the pavement

The soil survey maps the center point of ZIP 90802 as Urban land on 0 to 2 percent slopes, dredged fill substratum. That last phrase tells the story: the ground was built up with material pumped from the harbor floor and spread over the shore. On top of that fill, 95 percent of the map unit is paved or built over.^[1]

Dredged fill tends to be a mix of sand, silt and shell, and it can vary a great deal from one spot to the next. Dig a test hole before any project. If you find loose sand, plan for compaction. If you find gray, sticky silt that smells of the sea, plan for fabric and a thicker base, because that kind of fill stays soft when wet.^[1]

Fill placed long ago has had time to settle, but it can still hold surprises. Broken concrete, asphalt and old pipe can turn up just below the surface in a built-up area like this. Pull anything large out of the dig and fill the hole with compacted Road Base so the new surface does not dip over a soft patch later.^[1]

The ground at the center point stands 20 feet above sea level. Low, flat land like this drains slowly at the surface, so even in a dry climate a patio or parking pad should slope so the rain it does get runs away from walls and doors.^[2]

A dry, frost-free climate

The nearest NOAA normals station is Long Beach Daugherty FLD, about 6 miles away. It averages 12.0 inches of precipitation a year. Long dry spells make dust and drying soil the usual problems, while the rare heavy storm can still flood a low courtyard that has no way to drain.^[3]

The Daugherty Field station records 0 days a year with a low of 32 F or colder. With no freezing nights, there is no frost heave to design around, and work on beds, paths and patios can go on in every season. Mulch here works mainly to hold moisture and keep roots cool, not to shield them from cold.^[3]

In a place this dry, a surface that packs firm and resists wind matters. Decomposed Granite and Stone Dust Screenings both lock into a smooth crust when wetted and compacted. They suit paths, sitting areas and the strip between a sidewalk and a fence.^[3]

Ocean air keeps summers milder near the shore than in the inland valleys, though the dry season runs just as long. Gravel surfaces stay firm in dry weather, and the main care they need is a fresh top layer every few years where foot traffic has thinned it.^[3]

Without frost to loosen it, a compacted path stays put for years. The main enemies are wind, which lifts loose fines, and garden hoses left running, which can cut small channels. A light spray and a pass with a hand tamper fix both.^[3]

Building a patio or parking pad on fill

Start with the subgrade. Remove broken concrete, roots and loose debris, then compact what is left with a plate until it stops settling. Where the fill is silty or soft, lay a woven geotextile so the base stone stays separate from the mud below.^[1]

For the base, Road Base packs into a dense, firm layer that carries a car without rutting. Crushed Concrete is a good recycled option that compacts just as tightly. Lay either one in thin lifts, wet each lift and compact it before adding the next. A dry base will not bind.^[1],[3]

The surface is a matter of look and use. 3/8" Crushed Stone and Walkway Gravel feel good underfoot on a patio. Driveway Gravel or 3/4" Crushed Stone handles parking. For pavers, screed a thin layer of Concrete Sand over the base and set each paver into it, then sweep sand into the joints.^[2]

Storm drainage deserves a plan even in a dry place. When a rare heavy rain does fall, a courtyard boxed in by walls can fill fast. A dry well dug at the low point and filled with Drain Rock, or a strip of #57 Crushed Stone along the lowest edge, gives that water room to sink into the fill rather than pooling at a door.^[2],[3]

Edging is worth the effort on small lots. A steel, stone or paver border keeps gravel off the sidewalk and out of the planting beds, and it gives a small yard a clean, finished line.^[1]

For a parking pad, plan the edges as carefully as the middle. Cars turning in from the street push stone outward, so a firm edge of concrete curb, steel or a row of set pavers holds the surface together. Without it, the pad slowly widens and thins along its sides.^[1]

Planters and small gardens

With most of the ground covered, much of the gardening in this ZIP happens in planters, raised beds and narrow strips. Fill them with Garden Soil, or blend Topsoil and Compost, instead of relying on the fill underneath. Dredged material tends to be salty and low in organic matter, and most plants struggle in it.^[1]

Mulch saves water in a dry climate. Brown Shredded Mulch or Wood Chips over the soil slow evaporation and keep roots cooler on hot afternoons. For a no-water look, River Rock or Pea Gravel around drought-tolerant plants gives texture without any need to irrigate.^[3]

Succulents, grasses and other plants that thrive on little water do best in a loose, gritty mix. Blend some Concrete Sand or 3/8" Crushed Stone into Garden Soil for those beds so water drains away from the crowns. A top layer of Pea Gravel keeps the crowns dry and the bed tidy.^[3]

Homes in ZIP 90802 and across Long Beach

The Census counts 25,169 housing units in ZIP 90802. Detached single-family houses make up just 5 percent of that total. Across Long Beach, the detached share is 40 percent.^[4]

Homes in the ZIP have a median build year of 1970. The city median is older, at 1959. Owners live in 21 percent of the occupied homes in the ZIP, and Long Beach counts 181,477 housing units in all.^[4]

Apartment buildings and condos make up most of the housing in this ZIP, so the usual job is a shared courtyard, a rooftop planter or a narrow strip between buildings. Material for those spaces goes in by wheelbarrow, so a smaller load set down close to the work area saves a lot of carrying.^[4]

Caltrans names Class 2 Aggregate Base in Section 26-1.02B of its 2026 Standard Specifications as the base layer for state highways. The same principle of a graded, compacted stone layer carries over to smaller jobs, even though that spec is written for road work.^[5]