Q&A: Why Philly has so many sinkholes

PHYSorg
Jan 20, 2026, 9:14 pm215 ptsTop
In early January, a giant sinkhole formed at an intersection in the West Oak Lane neighborhood of North Philadelphia after a water main break. Just two weeks earlier, the city reopened a section of the Schuylkill River Trail in Center City that had been shut down for two months due to a sinkhole. Last summer,…

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