Landscape Rock, Gravel and Soil Delivery in Arvada, CO

Deep snow and a short season

Weather numbers come from the NOAA normals station at Wheat Ridge 2, CO, about 2 miles away. That station averages 17.1 inches of precipitation and 75.5 inches of snow a year. In an average year, 168 days bring a low of 32 F or colder there.^[1]

The median last spring freeze at Wheat Ridge is May 5. The median first fall freeze comes on October 5. Gardeners who wait for the May date lose fewer seedlings, and fall cleanup and mulching fit best into late September.^[1]

Deep snow in a dry climate means big melts on sunny days and hard refreezes at night. A gravel surface that holds water will loosen and rut through that cycle. Clean, draining stone and a crowned surface keep meltwater moving off the drive before it freezes in place.^[1]

Snow piled beside a drive becomes a slow-melting reservoir. Each warm afternoon sends water toward the lowest point, so decide where that point is before you build, and make sure it is not the garage door or a walk.^[1]

Clay loam with a high swell rating

The USDA soil survey maps the center point of ZIP 80002 as Nunn-Urban land complex, 0 to 2 percent slopes. The Nunn series makes up 65 percent of that unit, and urban land, paved or built over, accounts for 20 percent.^[2]

Nunn is well drained, with a top mineral layer of clay loam and hydrologic group C, slow infiltration. Water moves down through the profile without lingering for long, but a heavy rain or a fast melt soaks in slowly and can run across the surface first.^[2]

Shrink-swell in the top 100 cm rates high, at 7.5 percent. Clay loam with that rating swells when it soaks up water and shrinks as it dries. Over time that movement cracks walks, lifts edging and opens gaps under slabs. The ground at the center point is 5,380 feet above sea level.^[2],[3]

Urban land in the map unit means some lots sit on fill placed during construction rather than on native Nunn soil. A test hole before a project shows which you have. Native clay loam compacts firmly when slightly damp, while loose fill should come out or be compacted in thin layers.^[2]

Asphalt Millings or Driveway Gravel on a snowy drive

Each choice starts with the same base, and the base matters most. Strip soft soil, lay woven fabric over the clay loam, then compact Road Base or Crushed Concrete in thin wetted lifts. A thick base spreads loads across expansive ground and resists the soft spots that spring melt leaves behind.^[2]

Railroad Ballast or #4 Crushed Stone can fill a soft, wet corner at the bottom of a drive before the base goes in, bridging the weak spot with large, angular stone.^[2]

Asphalt Millings pack into a dense, dark surface that soaks up winter sun, which helps snow melt off sooner. They bind tighter each summer and resist plow scraping. Driveway Gravel gives a lighter, classic look and drains freely, but a plow will push some of it into the yard each winter, so plan to top it up in spring.^[1]

The Colorado Department of Transportation lists Aggregate Base Course, Class 6, under Section 304 of its Standard Specifications for Road and Bridge Construction 2025. That course is the graded stone the state builds beneath its pavement.^[4]

A residential drive borrows the idea without matching the section: angular stone, mixed sizes, firm compaction and a fall toward the street. Never let the drive slope back toward the garage, where melt would pool against the slab.^[2]

Edges keep either surface in place. A steel edge or a border of larger River Rock holds the drive's shape when snow is pushed aside, and gives the plow driver a clear line to follow.^[1]

Keeping foundations dry on swelling ground

Clay loam with high shrink-swell moves the most where water gathers, and the foundation is where that does the most harm. Carry downspouts several feet out onto River Rock splash pads, and keep the soil sloping away from every wall.^[2]

A rock border of River Rock or #57 Crushed Stone over fabric along the foundation stays tidy and lets you spot puddles quickly. Keep sprinklers and drip lines off the soil next to the house.^[2]

Melt from a snowy roof can overwhelm a single downspout. Where water crosses the yard, a shallow swale lined with Drain Rock or River Rock moves it to the street. Slow infiltration in group C soil favors an open channel over a buried pit.^[1],[2]

Basement window wells fill with snow and then with meltwater. Clean stone in the well, such as #67 Stone, lets that water drain away, and a cover keeps most of the snow from building up in the first place.^[1]

Gardens in a short growing window

Clay loam holds nutrients well but packs hard. Working Compost into beds each year keeps it crumbly and lets water soak in. Raised beds filled with Garden Soil warm faster in spring, which helps when the median last freeze does not come until May 5.^[1],[2]

Mulch helps most in a dry, windy climate. Brown Shredded Mulch, Black Shredded Mulch and Red Mulch hold moisture in beds and stay put better than loose chips. Wood Chips suit large areas and paths. Lay a fresh layer before the October 5 median first freeze to protect roots through winter.^[1]

Rock gardens suit 17.1 inches of yearly precipitation well. Decomposed Granite paths, #89 Crushed Stone as a gravel mulch, and River Rock accents need no watering and handle snow load without fuss. Topsoil patches thin lawn areas in spring.^[1]

Garden paths stay usable in mud season when they are built on stone. A walk of Stone Dust Screenings over compacted Road Base packs firm, sheds melt and can be shoveled without scattering.^[1],[2]

Homes in ZIP 80002

The Census counts 10,289 housing units in ZIP 80002. Detached single-family houses make up 44 percent of them, and owners live in 50 percent of the occupied homes. The median home in the ZIP was built in 1980.^[5]

Across Arvada, the Census counts 52,169 housing units, and 70 percent of them are detached houses. The city's median year built is 1979.^[5]

The ZIP holds more apartments and attached homes than the city as a whole, so orders range from a single load of Wood Chips for a townhome bed to Road Base and Driveway Gravel for a house with a long drive.^[5]

Houses from around 1980 often come with original rock beds and walks, and refreshing them with new River Rock, Walkway Gravel or mulch is a common spring project.^[5]