A partially constructed parking garage in Philadelphia’s Grays Ferry neighborhood collapsed on Wednesday afternoon, killing one worker and leaving two others presumed dead beneath the wreckage of seven floors of concrete and steel.
The catastrophic failure occurred around 2:17 p.m. at 30th Street and Grays Ferry Avenue, when a precast concrete roof segment failed during installation and triggered a progressive collapse that sent all seven levels of a stairwell system crashing down in seconds. Doorbell camera footage captured the terrifying moment as floors cascaded from top to bottom in rapid succession.
One construction worker was pronounced dead at Penn Presbyterian Medical Center after being rescued from the debris. Two others were treated and released. But two more workers remain unaccounted for, trapped somewhere in the mountain of twisted metal and shattered concrete that now sits where a corner stairwell once stood.
“We are not and we will not give up on these individuals and we will not rest until everyone is accounted for,” Philadelphia Mayor Cherelle Parker said during a press conference on Wednesday night.
All three workers who died or are presumed dead were members of Ironworkers Local 401, according to city officials. Search and rescue operations have been paused as engineers work to stabilize the structure, which officials warn could collapse further. Philadelphia Fire Commissioner Jeffrey Thompson said the building currently poses too great a risk for first responders to enter safely.
Firefighters from Squad 47 were just one block away when they heard the collapse and rushed to the scene immediately. They rescued three people in the initial response, but the subsequent rescue efforts have been complicated by the unstable nature of the remaining structure.
Andy Martinez, who lives on Wharton Street near the construction site, had just returned home after picking up her child when the collapse occurred. “It was so loud,” Martinez said. “I was upstairs all the way in the back of the house.” Her Ring camera captured the chilling footage that shows the floors pancaking downward in a matter of seconds.
According to Mayor Parker, the structural collapse was contained to the 30th Street side of the stairwell. The garage was being built by HSC Builders and Construction for Children’s Hospital of Philadelphia to provide employee parking, with plans calling for up to 1,000 parking spots when completed. Only a small corner of the planned facility, including the stairwell, had been constructed when disaster struck.
Precast Services Incorporated, a subcontractor, was installing precast concrete floor decking and roof segments that had been manufactured off-site. Mayor Parker explained that this type of installation falls under special inspection requirements rather than standard city Licenses and Inspections oversight. The project had eight permits, all up to date, and no current violations on record.
The Occupational Safety and Health Administration is now leading the investigation into what went wrong. Federal investigators will photograph the scene, interview workers, and examine design plans as they work to determine the cause of the failure. The investigation is expected to take at least six months.
Dr. Abi Aghayere, a professor of Structural Engineering at Drexel University, outlined what investigators will examine. Errors could be design-based, construction-based, or stem from material deficiencies, he told reporters. Investigators will review structural drawings to rule out design errors and interview workers who were on site when the collapse occurred.
The parking garage project had already stirred controversy in the neighborhood. Community members and activists have protested the construction since last year, arguing it would increase traffic congestion, harm the environment, and affect public health. In response to the pushback, Children’s Hospital of Philadelphia modified the design to include a community health space on the ground floor, along with additional greenery, public art, and improved pedestrian features.
A CHOP spokesperson said the hospital is aware of the serious construction incident and is prioritizing the safety of construction workers while working closely with the City of Philadelphia and its construction partners.
Grays Ferry Avenue between 29th and 33rd streets remains closed, and officials cannot provide a timeline for when the area will reopen. Nearby homes and businesses have been told to expect continued disruptions as crews work to stabilize the structure and continue the search for the two missing workers.
Construction on the garage has been halted indefinitely. Photos taken on March 27 show that only two floors had been built at that time without a full staircase. In less than two weeks, the structure had grown to seven full levels before Wednesday’s catastrophic failure.
As barriers go up around the 3000 block of Grays Ferry Avenue and engineers assess the damage, the focus remains on the two workers still trapped inside. Mayor Parker emphasized that public safety remains the top priority, even as the search continues under dangerous conditions.