July 2022, Vol. 249, No. 7

Features

Identifying, Minimizing Sinkhole in Pipeline Rights-of-Way

By Richard McDonough, North America Correspondent  (P&GJ) — Kentucky and Pennsylvania are two of the states and commonwealths that have several areas within their borders susceptible to karst formations, including sinkholes and surface depressions. These states also have substantial resources available for pipeline companies – and others – to review when attempting to identify locales with sinkholes as well as areas that are prone to karst formations.  A section near Nicholasville, Kentucky, south of Lexington, shows topographic map-identified (red) and LiDAR-identified sinkholes (blue). (photo: Kentucky Geological Survey, 2022)

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