“Mount Washington landslide halts trains, Duquesne Incline; restaurant closed as precaution”

“Mount Washington landslide halts trains, Duquesne Incline; restaurant closed as precaution”

Pittsburgh Post-Gazette — Pittsburgh, Pa.  “The slide was typical in that it involved a failure of weak claystone called “red beds” that were saturated with moisture from recent rainfall, said Bruce Roth, a geotechnical engineer with GAI Consultants Inc., the company brought in by the city to inspect the scene.”

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