For any construction project in Orange California, the 2021 California Building Code (CBC) and ASCE 7-22 require a site-specific soil mechanics study to classify the ground and determine allowable bearing pressures. Given the region's proximity to active faults like the San Joaquin Hills thrust system, we follow ASTM D1586 for Standard Penetration Tests and ASTM D2487 for soil classification. Our team integrates the stability of slopes assessment when the project involves cut or fill slopes, ensuring the design accounts for the local alluvial and terrace deposits that dominate the Santa Ana River valley.
Classifying the Fernando Formation sands correctly can lower the foundation cost by avoiding overdesign for seismic lateral spreading in Orange California.
