Arlington sits on the Eagle Ford Shale formation, a clay-rich bedrock that expands and contracts with moisture. This makes slope failure analysis especially relevant here. The city’s rolling topography near Lake Arlington and the Trinity River creates natural gradients where shallow slides occur after heavy rain. Our team follows FHWA-NHI-05 and ASCE 7 guidelines to evaluate factor of safety. We use limit equilibrium methods like Bishop and Spencer to model critical slip surfaces. Before any cut or fill operation, a proper diagnosis prevents costly retrofits. For sites with existing retaining walls, we often recommend a complementary muros-contencion assessment to check wall stability under saturated conditions.
A factor of safety below 1.5 under saturated conditions is a clear signal that slope failure is imminent without intervention.