R&M completed a geotechnical investigation for design and construction of a steel and concrete dock to replace an existing timber structure located in a highly seismic region with a history of devastating earthquakes. Unique geotechnical challenges included evaluating potential for and magnitude of lateral ground failure (spreading or slope displacements) towards the channel during an earthquake, qualifying the magnitude of kinematic loads from that failing soil sliding past the piles, and developing non-linear parameters to model how the piles, socketed into bedrock, would deflect when subjected to lateral kinematic soil, as well as structural inertial loads.