One worker was taken to a hospital with injuries that were not life-threatening, according to officials. The structures were evacuated and are being inspected to determine if they are in danger of collapsing, officials said.
D.C. fire department spokesman Vito Maggiolo said the townhouse was occupied by a resident and his caretaker. They did not require medical attention, Maggiolo said, but the townhouse sustained significant roof damage, and the resident was displaced.
The company that owns the crane did not return a request for comment.
Lenore Uddyback-Fortson, a spokeswoman for the Occupational Safety and Health Administration, said the agency is investigating the incident.
The crane was lifting materials to the upper level of new construction when “something went wrong and the load dropped too fast,” Uddyback-Fortson said in an email. The falling load knocked down a portion of a framed wall, causing the crane to tilt, she said.
Uddyback-Fortson said a construction worker was injured and taken to a hospital, but was released with “only bruises.”
The worker’s employer did not return a request for comment.