Bulk Gravel, Drain Rock and Soil Delivery in Vancouver, WA

Low Ground Beside the Water

The USDA soil survey maps the center point of ZIP 98660 as Water. The point itself falls on open water, which tells you the ZIP reaches right down to a shoreline. USGS elevation data puts the ground at that center point at 10 feet above sea level.^[1],[2]

Land close to water level behaves differently from upland ground. The water table can sit near the surface, especially through a wet winter, and soil a short spade depth down may already be damp. Any project that digs, such as a footing, a drain or a deep base, can hit wet ground sooner than expected, so dig a test hole before you plan depths.^[2]

Fill is also common on low ground near a shoreline. Old industrial sites and riverside lots are often built up with imported material over the years. A few test holes will show whether you are on sand, gravel, silt or a mix, and that answer decides how much base a gravel pad or a patio needs.^[1]

Building up is often easier than digging down on ground like this. A patio, a shed pad or a play area set a little above the surrounding yard on a compacted stone base stays drier through the wet months. Crushed Concrete makes a firm, free-draining base for that kind of raised pad, and it is a sensible use of recycled material for a layer nobody will see.^[2],[3]

Long, Damp Seasons

The NOAA normals station Vancouver 4 NNE, WA, about 4 miles from the center point, averages 42.3 inches of precipitation a year and 0.8 inches of snowfall. Rain in the Northwest tends to arrive as long stretches of light, steady showers through fall, winter and spring rather than short cloudbursts. Soil stays wet for weeks, and surfaces rarely dry out completely until summer.^[3]

Freezing weather is moderate. The Vancouver 4 NNE station logs 66 days a year with a low of 32 F or colder. The median last spring freeze at that gauge is April 26, and the median first fall freeze is October 18.^[3]

Steady damp brings moss, algae and leaf litter into any gravel surface that stays shaded and wet. Over time they fill the gaps between stones and turn a draining surface into a spongy one. Clean, angular stone in a sunny spot stays open longer, and a thin top-up of fresh stone every few years restores the surface.^[3]

Gravel walks and patios in a damp climate also stay cleaner when they have a firm edge. Steel, timber or stone edging keeps the surface from spreading into soft lawn, where it gets lost in the mud. Under a walk, a compacted layer of Road Base topped with 3/8" Crushed Stone or Walkway Gravel gives a surface that stays firm even after a week of showers.^[3]

Drainage Comes Before Everything

On low, wet ground, a drainage plan is the first step of almost any yard project. Find where water collects after a long rain and where it could go. A French drain filled with Drain Rock or #57 Crushed Stone, wrapped in fabric and running to a lower outlet, pulls water out of a soggy lawn or away from a foundation.^[2],[3]

Where there is little fall to work with, a dry well can help. Dig a pit, line it with fabric, and fill it with clean stone, then route a downspout or a drain line into it. The open stone holds a burst of runoff and lets it soak away slowly. On ground this low, place a dry well where test holes show the soil is not already saturated.^[2],[3]

Surface water needs a path too. A shallow swale lined with River Rock carries runoff across a yard without cutting a channel. Where a pipe empties onto a slope, a few pieces of Riprap stop the stream from scouring the soil away.^[3]

Roof runoff is the biggest single source of water on most lots. Each downspout should either run into a buried pipe that carries it to a dry well or outlet, or land on a splash pad of River Rock that spreads the flow. Water dumped against a foundation on low ground can find its way into a crawl space quickly.^[2],[3]

A Gravel Drive for Wet Ground

Build a drive here as if water will always be nearby. Strip soft topsoil, compact the subgrade, and lay a woven fabric. Then build up a base of Road Base or Crushed Concrete in thin, compacted lifts. On damp ground, raise the finished surface a little above the surrounding grade so water drains off rather than into it.^[2],[3]

For the top layer, 3/4" Crushed Stone, Driveway Gravel or 1-1/2" Crushed Gravel all drain well and lock together under tires. Asphalt Millings make a firm, dark surface that sheds rain and resists rutting. Whichever you choose, crown the surface and keep a ditch or a Drain Rock strip along the low edge.^[3]

Washington sets a state standard for the stone course beneath its roads. The Washington State Department of Transportation calls it Crushed Surfacing Base Course, Section 9-03.9(3), in its Standard Specifications for Road, Bridge, and Municipal Construction M 41-10 (2027). The same idea, crushed and graded rock packed in layers, holds up a home drive.^[4]

Beds and Lawns in a Rainy Climate

Raised beds are the simplest way to garden on low, wet ground. Fill them with Garden Soil, which drains well, and add Compost each year. Beds raised even a little above the surrounding ground stay out of standing water through winter and warm faster in spring.^[2],[3]

The nearby gauge puts the median last spring freeze on April 26, a late date that keeps tender plants waiting. In the meantime, spread Brown Shredded Mulch or Black Shredded Mulch over beds to stop rain from compacting the surface and to slow weeds. Wood Chips make good paths between beds, since they stay walkable when the ground is wet.^[3]

Topsoil spread over thin lawn areas in early fall gives new grass the long, damp season it likes for rooting in. Mason Sand or Concrete Sand is useful as a bed under pavers or for leveling, but avoid working sand into wet garden soil, since it can pack it harder.^[3]

Homes in ZIP 98660

The Census counts 7,270 housing units in ZIP 98660. Detached single-family houses make up 40 percent of them. Vancouver as a whole has 85,421 housing units, with detached houses at 51 percent.^[5]

The median home in ZIP 98660 was built in 1971, earlier than the citywide median of 1988. Owners live in 38 percent of the occupied homes in the ZIP. Many projects in a mixed neighborhood of houses and apartments are drainage repairs, rebuilt parking areas and refreshed shared landscapes.^[5]