Caliche

Caliche is a naturally occurring sedimentary material rich in calcium carbonate, found throughout South Texas. It compacts well, provides good drainage, and creates a stable base layer — making it the go-to material for road bases, lot preparation, and general site work in the Rio Grande Valley. It has been the standard base material in the region for decades.

Yes. Caliche is one of the most widely used base materials in South Texas because it compacts to a dense, stable surface that holds up well under traffic. It works especially well with the clay-heavy soils common in the Valley, providing drainage and structural support that other materials struggle to achieve in these conditions.

Yes. Frontera Materials owns and operates caliche pits across the Rio Grande Valley. Because caliche is heavy and relatively low-cost per ton, transportation is a major cost factor. Sourcing from a local supplier with its own pits saves you significantly compared to distant quarries.

We deliver throughout the Rio Grande Valley and South Texas, including McAllen, Edinburg, Pharr, Mission, Harlingen, Brownsville, Weslaco, and Laredo. Contact us to discuss delivery logistics and pricing for your specific location.

Absolutely. Caliche is commonly used as fill material to raise grade, fill low-lying areas, and prepare sites for construction. It compacts predictably and provides a solid working surface for further construction. Many contractors in the Valley use it for both base and fill applications on the same project.