Micropiles are small diameter replacement piles that are capable of developing high axial capacities. Their installation equipment can penetrate hard rock with greater efficiency than tools used for other more conventional foundation types. It is due, in part, to their high capacity and their ability to penetrate hard unsuitable rock, that micropiles have emerged as an effective, and often preferred, foundation for heavier structures located in karst terrain composed of hard limestones and dolostones. However, the implementation of micropiles in karst terrain involves the combination of two complex systems. Typical karst conditions can include very soft soils, chert boulders, sloping rock surface, and cavitose bedrock.