Oklahoma City sits on a complex quilt of Permian red beds and Quaternary alluvium, which makes foundation design anything but straightforward around here. The International Building Code (IBC) requires a thorough geotechnical investigation, and when you need continuous stratigraphic profiles without the disturbance of traditional drilling, the cone penetration test is the tool that delivers. Our lab runs a calibrated electric friction-cone rig that pushes through the stiff clays and sandy lenses common in the Oklahoma River basin, logging tip resistance, sleeve friction, and pore pressure in real time. For projects near the North Canadian River where soft channel deposits hide under fill, we often pair CPT soundings with test pits to visually confirm the transition zones the cone detects. That combination saves our clients from surprises during excavation.
A CPT profile gives you a signature of the soil column every centimeter—no gaps, no guesswork between samples.
