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A recent bank instability in the Lower Mississippi River was threatening a commercial docking facility. This presentation describes the geotechnical engineering approach used to stabilize the slope. It involved the use of a series of large diameter open-ended steel pipe piles. Historical movements of the dock, previous subsurface explorations, and an understanding of the site geology were used to infer the complex geometry of the slide plane. A subsurface exploration with continuous undisturbed sampling and careful visual analyses of the soil samples were used to identify the slide plane. Laboratory strength testing including the use of the Direct Simple Shear device were used to characterize the soil strengths. Instrumented pin piles were utilized to verify the geometry of the slide plane and permitted the calibration of a soil-structure interaction model to estimate the lateral forces being carried by the pin piles. Both L-Pile and continuum mechanics modeling based on the Finite Element Method were used to estimate the contribution of the pin piles to the slope stabilization and to select a pin pile spacing. The design for this stabilization was implemented using the Observational Method and the number of pin piles, pile spacing, and depth were verified by field measurements.