Arlington sits squarely on the Eagle Ford Formation. This geological unit is notorious for highly plastic, expansive clays. The shrink-swell potential here can exceed a PI of 35. That means lateral earth pressures fluctuate dramatically with seasonal moisture. A standard gravity wall design fails quickly in these conditions. Our team integrates site-specific test pits to assess the active zone depth. We verify soil classification in our lab per ASTM D2487. The design then accounts for a swelling pressure that often surpasses 10 kPa. That data dictates the reinforcement and drainage strategy. Without it, you are guessing. And with Arlington's rapid development, guessing leads to costly failures.
In Arlington's expansive Eagle Ford clay, a retaining wall without a proper drainage system is just a temporary structure waiting to fail.
Quick answers
What is the typical design life of a retaining wall in Arlington?
We design permanent walls for a minimum 50-year service life. This requires durable concrete per ACI 318 exposure class F2 for sulfate-rich Eagle Ford soils. The drainage system components must also resist chemical degradation and clogging.
How do you account for the expansive soil in the design?
We measure the swell pressure directly in the lab. The wall is designed as a 'yielding' system where possible. For non-yielding walls, we design for the full at-rest pressure plus the swell pressure. A compressible zone behind the stem wall is a technique we use to absorb the expansion.
Do I need a permit for a retaining wall in Arlington?
Yes. The City of Arlington requires a permit for walls taller than 4 feet, measured from the bottom of the footing to the top of the wall. Our designs are sealed by a licensed Professional Engineer in Texas and meet all city submittal requirements.
What does retaining wall design cost in Arlington?
Engineering fees for a residential retaining wall design in Arlington typically range from US$1.070 to US$3.800. The scope includes site investigation, lab testing, structural calculations, and signed PE plans. The final cost depends on wall height and complexity.
