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Land subsidence, sinkhole collapse and karst subsidence

September 12, 2016

Business property owners may not be aware of the unique property risks posed by land subsidence and sinkhole collapses. Specialty property insurance endorsements may help protect businesses against the risk of sinkhole collapse and mine subsidence.

sinkhole

Land subsidence, sinkhole collapse and karst subsidence occur due to subsurface movement of earth, and all cause the ground surface to lower. These phenomena all have the potential to cause significant damage to building foundations and critical infrastructure.

These risks typically remain unassessed and hidden because of the challenges associated with estimating their impact. In addition to the impact of land subsidence, damage to building foundations and other structures as a result of poor preparation or soil conditions such as expansive clay is a significant concern for new construction projects.

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