Seventeen hurt in Rosslyn as part of 24th floor collapses

Sixteen construction workers were injured Friday morning, three of them critically, when a freshly laid slab of concrete collapsed onto the 23rd floor of an Arlington office building. Three workers were trapped for several hours before being rescued by firefighters.

It sounded “like a bomb,” said Marlo Rodriguez, 25, a construction worker who was on the 20th floor of the building, located at 19th and North Lynn Streets in Arlington, at the time of the collapse. “Everybody yelled, ‘Get out!’ ”