Gravel, Sand, Soil and Mulch Delivery in Burbank, CA

A gravelly soil complex, half built over

At the ZIP's center point, the USDA soil survey maps Urban land-Palmview-Tujunga, gravelly complex, 2 to 9 percent slopes. In that map unit, 45 percent is urban land, meaning paved or built over. Native soil fills the remainder of the map unit, and the word gravelly in the name says it carries plenty of rounded stone washed down from higher ground.^[1]

The Palmview series makes up 20 percent of the map unit, and the top mineral layer is sandy loam. Gravelly sandy loam is quick to dig in some spots and full of cobbles in others, so expect a shovel to hit stone. Those cobbles are not a problem for a base. They pack in with the fill and help the subgrade hold its shape.^[1]

The survey rates the soil well drained and puts it in hydrologic group A, where water soaks in fast and runoff stays low. Shrink-swell is low, at 1 percent. This is forgiving ground for gravel work. It barely moves with moisture, and rain disappears into it rather than collecting on top.^[1]

Dry normals at the Valley Pump station

Weather normals come from the NOAA station at Burbank Valley Pump PLT, CA, about 3 miles away. It averages 16.5 inches of precipitation a year and 0.0 inches of snow.^[2]

The Valley Pump station counts 1 day a year with a low of 32 F or colder. Frost does not shape any decision about a base, a walk or a bed here.^[2]

The station's median last freeze date is January 2, and its median first freeze date is December 26. Nearly the whole year is open for planting, and heat and rain set the timing of a project, not cold.^[2]

Long dry spells are the norm between storms. On group A soil, the rain that does fall soaks in fast and drains out of the root zone quickly, so mulch and water-holding soil matter more in a bed than drainage does.^[1],[2]

With 0.0 inches of snow in the Valley Pump normals, nothing about a Burbank gravel area has to survive a plow blade or a pile of melting snow. That frees you to pick surfaces on looks and feel alone, such as a smooth Decomposed Granite courtyard or a loose Pea Gravel side strip, without worrying about winter damage.^[2]

Grading a gravel drive on a gentle slope

The map unit lies on 2 to 9 percent slopes, so many drives here run uphill or downhill from the street. Start by scraping off loose surface soil and roots, then compact the gravelly sandy loam beneath. Pull out any cobbles larger than a fist from the top few inches so the base lays flat.^[1]

Spread Road Base in lifts and compact each one hard. Because the soil drains well and its shrink-swell rating is low, fabric is optional on a light-duty drive. On a slope, angle the surface slightly across its width so water runs to one side instead of straight down the middle, where it would carry stone with it.^[1]

For the top, 3/4" Crushed Stone or Driveway Gravel gives good grip on a slope. Asphalt Millings bind into a firmer surface that holds better on a steep stretch, and Crushed Concrete packs tight in a similar way. At the bottom of the drive, a short strip of River Rock or Riprap catches the stone that washes down in a rare heavy storm.^[1]

Water-wise yards with stone and mulch

With 16.5 inches of yearly rain at the Valley Pump station, many yards here trade lawn for stone and drought-tolerant plants. Decomposed Granite makes a firm, natural-looking floor for paths and sitting areas. It packs into a tight surface when wetted and rolled, and it suits the warm tan tones of a dry garden.^[1],[2]

Plant beds do best when you improve the sandy loam rather than replace it. Fork Compost into the top layer of each bed to help it hold water, and use Garden Soil for raised beds. Top every bed with Brown Shredded Mulch, Red Mulch or Wood Chips to shade the soil and slow evaporation.^[1]

Where part of a lot sits on old fill or a buried slab, as the urban share of the map unit suggests, build beds up instead of digging down. Topsoil spread over compacted fill gives grass and groundcovers a clean root zone without breaking through whatever lies below.^[1]

River Rock or Decomposed Granite for a dry creek

A dry creek bed is a popular way to move the occasional storm through a sloped yard, and the two surfaces people reach for are River Rock and Decomposed Granite. River Rock looks like a real streambed, lets water pass between stones and holds its place under fast flow. Decomposed Granite is better for the banks and the paths beside the channel, where you want a firm, walkable edge.^[1],[2]

On gravelly, well-drained ground with 2 to 9 percent slopes, lay fabric along the channel first, then a base of Drain Rock, then River Rock in mixed sizes on top. Set a few larger pieces of Riprap where the channel turns or ends, because that is where water hits hardest. The fast-draining group A soil soaks up whatever reaches the end of the run.^[1]

Pea Gravel against Walkway Gravel for a courtyard

Small courtyards and side strips are common jobs in the ZIP, and owners tend to weigh round Pea Gravel against angular Walkway Gravel. On well-drained gravelly sandy loam, drainage is not the deciding factor, since water soaks away under either one. What separates them is how the surface feels and how it stays in place.^[1]

Pea Gravel is smooth, soft underfoot and pleasant around a bench or fire bowl, but its stones roll and scatter onto nearby paving. Walkway Gravel has sharp edges and some fines, so it settles into a firmer layer that a chair or a bike can cross without sinking. With a shrink-swell rating of just 1 percent, edging stays straight on this soil, which keeps either stone neatly contained. Choose Pea Gravel for a quiet corner and Walkway Gravel for a route people use every day.^[1]

Where a courtyard sits over an old slab or compacted fill, a thin layer of Road Base under the stone evens out the surface and stops low spots from showing through.^[1]

Homes in ZIP 91501 and the Caltrans standard

The Census counts 8,530 housing units in ZIP 91501. Detached single-family houses make up 33 percent of them, and owners occupy 42 percent of the occupied homes.^[3]

Burbank as a whole has 46,243 housing units, and 44 percent are detached houses. The median build year is 1972 in the ZIP and 1959 across the city. A ZIP with many apartments and condos means plenty of small orders: Decomposed Granite for a courtyard, Pea Gravel for a side strip, or mulch for shared planters.^[3]

Caltrans lists Class 2 Aggregate Base in Section 26-1.02B of its Standard Specifications (2026). That section sets out the compacted, graded stone course under state highway pavements.^[4]