3/4 Inch Drain Rock and Bulk Aggregates for Marshall, CA

Winter rain drives everything here. Gravel and aggregate delivery in Marshall, CA starts with water: where it pools, where it runs, and what stone moves it away. California Rock Supply supplies bulk stone, sand and soil across Marin County, from Class 2 base for drives and pads to clean washed rock for drainage.

Sandy ground near the shoreline soaks rain fast. Clay soils in the Coast Range valleys and hills do the opposite, so the right drainage layer matters more than the volume you buy.

Materials for Marshall Projects

Start with washed stone. It carries no fines, so water passes through instead of sitting in it. That is the whole point of a French drain, a drywell or a downspout run.

Coarsest sizes first

RipRap and large river rock handle the big water. Use RipRap on creek banks, culvert outlets and slope toes where winter runoff hits hardest. Caltrans specifies placed slope rock as rock slope protection, and that is the same material.

Step down to Drain Rock for French drains, drywells, downspout runs and the backfill behind retaining walls. It stays open and keeps moving water moving. 3/4" Drain Rock, also called #57 stone, is the size most crews reach for in a trench.

Smaller washed stone finishes tight work. 3/8" Crushed Stone beds pipe and tops a compacted base. #67 Stone and #89 Crushed Stone fill joints and tight bedding where a finer washed grade fits.

Base, surface and soil

Drainage stone is half the job. The other half sits on top of it. Class 2 Base is the standard California base material, specified by Caltrans as Class 2 aggregate base, and it goes under driveways, parking pads, pavers and slabs. Recycled base rock and crushed miscellaneous base do the same work when you want material made from Road Base or asphalt.

For the wearing surface, Driveway Gravel tops a compacted base and Walkway Gravel gives paths a finer, walkable finish. Stone Screenings, or DG, packs firm over a base for patios and low-water ground cover.

Ground and Conditions in Marshall

Soils change over short distances around Marin County. Sandy dune and beach soils sit along parts of the shoreline. Heavy clay soils that crack when dry and swell when wet are extensive in the Coast Range valleys and hills.

Most rain falls from late fall to spring, much of it in a few large winter storms and atmospheric rivers. On sand it soaks in fast. On clay and slopes it sits or runs off, which is why a clean drainage layer and a properly compacted base both matter.

The dry season from late spring into fall is your window for base, driveway and paver work. Summer fog near the shore rarely stops anything. Winter rain and saturated clay do, so time a delivery so your stone is on site before the ground turns.

Delivery to Marshall and the Surrounding Area

Order online and choose your quantity by the ton or by the cubic yard. Bulk delivery to a site in Marshall is straightforward once you know where the truck can set down and how much ground you are covering.

We cover Marshall and the rest of Marin County, including San Rafael, Novato, Mill Valley, Larkspur and San Anselmo. Expect a typical lead time rather than a same-day drop, so plan drainage and base work ahead of the first big storm.

Give a clear drop point and enough room for the truck to reach it. Loose, well-drained ground and a firm approach make the pour faster and cleaner.

Order Bulk Stone and Base for Your Marshall Job

From washed drainage stone to Class 2 base, California Rock Supply delivers bulk material to Marshall and the surrounding Marin County area. Sort your sizes, pick your quantities, and place the order online. Get your stone on site before the rain arrives and the work stays on schedule.