High above New York City’s streets, ironworkers building the 70-story One Manhattan West tower are laboring inside of a six-story, 900-ton steel-mesh cocoon that hydraulically crawls up the sides of the building as they erect structural steel around the tower’s concrete core.
The National Transportation Safety Board slammed Amtrak’s approach to safety management, charging that it spawned a host of deficiencies that led to the fatal 2016 derailment of a passenger train in Chester, Pa.
Two Applied Technology Council hazard-mitigation projects targeting nonductile concrete buildings are benefitting from information gathered during an Oct. 9-13 reconnaissance trip to Mexico City, less than a month after the Puebla-Morelos earthquake.