Bulk Aggregate Delivery Across Washington County, UT
Utah Rock Supply handles gravel, stone and aggregate delivery in Washington County, UT. Order online by the ton or the yard and a dump truck tips the load on your site.
Untreated base course is the material most Utah ground work starts from, and it is the one to name when you plan a drive, a pad or a slab. The ground under it here is sandy and gravelly desert soil over rock, alkaline and low in organic matter.
Materials Delivered in Washington County
Untreated base course, shortened to UTBC, is a compacted base of natural gravel or crushed rock placed on prepared ground.
City and county work follows the APWA Utah Chapter Manual of Standard Specifications, where the matching section is 32 11 23 Untreated Base Course. Utah yards and crews say UTBC, and the catalogue name is Road Base.
Order it by top size, 3/4 inch minus or 1 1/2 inch minus. It goes under driveways, parking pads, slabs, shed bases and paver work, and it is the layer that carries the load.
Choosing the Right Material
Iron County sits in Southwestern Utah and shares the same ground region as Washington County, from the St. George basin to the Escalante Desert.
Sandy, gravelly desert soil over red sandstone and volcanic rock, with heavy expansive clay in places, alkaline and low in organic matter.
The ground is the same across both counties, so the base and drainage choices are the same. A compacted untreated base course under a drive or pad, and clean washed stone where water has to move.
Where expansive clay shows up, water held under a slab is the concern. A drainage layer of washed rock gives that water somewhere to go.
Ground Conditions Across Washington County
Summer monsoon cloudbursts and winter frontal rain fall on ground that takes in very little. Clay ground holds water under slabs and flatwork, so drainage matters as much as base depth.
Flash flooding runs through the washes and sheet flow crosses bare desert slopes and alluvial fans. Wind moves loose sandy ground where nothing holds it.
Riprap armors wash banks, culvert outlets and ditch banks against that runoff. Crusher fines surface paths and hold better in dry ground than loose stone.
The working season runs close to year round in the St. George basin, where summer heat is the limit rather than frost.
Every jurisdiction sets its own footing depth, so confirm it locally.
Delivery Across Washington County
Order online and pick a delivery date at checkout. Quantities are ordered by the ton or by the yard, and each product page has a calculator to size the load.
A dump truck tips the load in one pile on your site. Have the drop spot clear and reachable before the truck arrives.
Delivery covers St. George, Washington, Hurricane, Ivins, Santa Clara, La Verkin, Toquerville, Central, Dammeron Valley, Virgin, Veyo, New Harmony, Pine Valley and Gunlock.
Questions About Aggregate in Washington County
What is the difference between topsoil and fill dirt?
Fill dirt is structural fill and backfill. It raises grade, fills low ground and backfills before a base course goes down.
Screened topsoil is the planting layer for lawns and beds. Utah ground averages about pH 8 and is low in organic matter, and new lots are often stripped to clay subsoil, so imported screened topsoil is the usual start.
What is untreated base course and what is it used for in Washington County?
Untreated base course, or UTBC, is a base course of natural gravel, crushed rock or crushed slag placed on prepared subbase or subgrade.
It goes under driveways, parking pads, slabs, shed bases and paver work, sized by top size.
How deep should a gravel driveway base be in Washington County?
No single depth fits every drive. The right figure depends on your ground, the loads it will carry and the drainage under it.
Clay ground that holds water needs a different answer than sandy desert soil. Size the load with the calculator on the product page, and confirm footing depth with your local building official.
Order Base, Stone, Sand and Soil for Your Washington County Project
Utah Rock Supply delivers untreated base course, crusher fines, washed stone, sand, topsoil and decorative rock across Washington County. Drives, parking pads, slabs, shed bases, paver work, drainage runs, wash banks and beds all start with the right material.
Order online by the ton or the yard and have it tipped on your site.