Irving sits at an elevation of about 482 feet, but the subsurface is far from uniform. Much of the city rests on the Woodbine Formation and expansive clay soils that shift with seasonal moisture variation. When a developer plans a mid-rise along the Las Colinas Urban Center corridor, shallow footings alone rarely meet the settlement criteria. We design pile foundation systems that transfer structural loads to competent bearing strata, bypassing the reactive upper soils. For sites near the Trinity River floodplain, we often integrate our design with a CPT test program to precisely map the depth to the Eagle Ford Shale, because traditional SPT data alone can underestimate the variability in these interbedded deposits.
In Irving's expansive Woodbine Formation, ignoring lateral soil movement in pile design can reduce service life by decades.
