Colton sits on loose alluvial sands deposited by the Santa Ana River basin, meaning concrete poured directly on native soil sinks and fractures under everyday vehicle traffic.
Data from the USDA Web Soil Survey confirms that Colton valley soils consist primarily of coarse sand and sandy loam with rapid water permeability. When winter rains sweep through the valley, water drains quickly through the sand, creating subterranean voids beneath poorly prepped slabs. Without an engineered layer of compacted crushed gravel beneath the pour, the weight of parked cars forces concrete downward into these soft gaps.
To counter these soil conditions across San Bernardino County, we excavate native earth and mechanically tamp a deep aggregate subbase prior to every pour. We run steel reinforcing grids on chairs so the metal stays centered in the wet mix, preventing structural separation over decades of use. Every installation comes with a written workmanship guarantee against defects in how it was built, ensuring every driveway, patio, and walkway we complete remains solid, level, and true.