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Slope and Retaining Wall Evaluation and Design

According to the National Landslide Hazards Program (NLHP) administered by the USGS, landslides constitute a major geologic hazard because they are widespread and can be quite severe. They occur in all 50 states and U.S. territories and cause an average of $1 to $2 billion in damages each year. GeoStructures is experienced in the design, evaluation, and rehabilitation of a full range of earth/rock slopes and retaining systems for transportation facilities, commercial sites, and residential developments. In addition to competency in traditional limit-equilibrium analysis, our strength in soil-structure interaction modeling and use of the finite element method (FEM) enables us to gain a deeper understanding of complicated slopes and earth retaining systems.

In the area of retaining systems, our engineers were among the first in Pennsylvania (late 1980s) to design geogrid-reinforced retaining wallsstructures commonly referred to today as Mechanically Stabilized Earth (MSE) walls or Segmental Retaining Walls (SRW). Our capabilities in the design of slope and retaining systems includes:

  • Geogrid-reinforced retaining walls and steep slopes (1H:1V or steeper)
  • Geosynthetic erosion control and vegetative mats
  • Mechanically Stabilized Earth (MSE) walls
  • Sheet pile walls (cantilever, braced, or with tie-backs)
  • Soil nailing, soil anchors, and rock anchors
  • Post and panel walls
  • Rock cut slopes
  • Concrete retaining walls (gravity or cantilever)
  • Gabion and boulder retaining walls
  • Coffer dam

  For inquiries related to Slope and Retaining Wall Evaluation, please contact Jianchao Li (

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