Errant Subway Blast in New York Strayed From Approved PlanDrilling angled holes rather than vertical holes was one error that led to underground blasting for the Second Avenue subway.CopyFacebookXTruthGettrLinkedInTelegramEmailSaveA view of the cavern and the future Second Avenue subway 72nd Street station, seen in March. An errant blast Aug. 22 happened in a shaft off the cavern. Amal Chen/The Epoch TimesBy Zachary Stieber9/13/2012Updated: 10/1/2015Print