Officials say a failed roof segment triggered a chain collapse through all seven levels of the structure under construction for Children’s Hospital of Philadelphia.
PHILADELPHIA, PA — Philadelphia officials said Thursday night that search crews found no signs of life in the wreckage of a partially collapsed parking garage under construction in South Philadelphia, shifting the operation from rescue to recovery for two missing workers.
Mayor Cherelle L. Parker said the change came after an around-the-clock search at the Children’s Hospital of Philadelphia project at 30th Street and Grays Ferry Avenue. One worker was pronounced dead after the Wednesday collapse, two others were hurt and treated, and the two men still unaccounted for are now presumed dead. The move to recovery marks a painful turn in a high-risk operation that has drawn in city responders, union workers, engineers and federal safety investigators.
The collapse happened at about 2:17 p.m. Wednesday at the seven-story garage site on the 3000 block of Grays Ferry Avenue. Officials said crews reached the scene quickly and pulled out three workers. One of them was taken to Penn Presbyterian Medical Center and later died, while two others were treated and released. Parker said the collapse started when a roof section over a stairwell gave way. That failure, she said, set off what city officials described as a progressive collapse across all seven levels of a corner tower of the garage. “We are not, we will not give up on these individuals and we will not rest until everyone is accounted for from this tragedy,” Parker said earlier in the response, as teams worked through unstable concrete and steel to reach the lower parts of the structure.
By Thursday evening, the city said four highly trained search dogs had combed the wreckage and found no evidence of survivors. Fire Commissioner Jeffrey Thompson said the garage remained too unstable for firefighters to move freely through it, especially near the lowest levels where responders still needed to search. He said crews would have to “deconstruct and de-layer” the building before they could safely get inside and work downward. City officials said robots, drones, live-detection canines and human-remains detection dogs were also used during the response. The names of the dead and missing had not been released as of Friday, but Parker said all three were members of Ironworkers Local 401. She said city officials had been in touch with their families and lowered flags across Philadelphia to half-staff in their honor.
The site sits in the Grays Ferry area, across from a shopping center and near a busy stretch of road that has remained blocked off since the collapse. City officials said the shopping center inside the closure area would stay shut until the site is safe, and Grays Ferry Avenue was closed from 34th Street to 28th Street, with all intersections in that stretch blocked. The project was being built for Children’s Hospital of Philadelphia to expand employee parking. In a statement, the hospital said it was focused on the safety of the construction workers and was working closely with the city and its construction partners. Parker said the project’s required permits had been issued and inspections were up to date. She also identified Precast Services Inc. as the subcontractor installing precast concrete floor decking and roof segments when the collapse began.
That early account of what failed is likely to shape the investigation that follows. The city said a precast roof segment fell to the level below and triggered the wider collapse. Federal workplace safety officials are expected to take the lead once the emergency phase ends. The Occupational Safety and Health Administration is investigating, while Pennsylvania emergency and labor agencies and city departments are also involved. Construction-law specialists told local media that investigators will likely examine whether the precast concrete pieces were connected properly, whether installation matched project specifications and whether there were any design or manufacturing defects in the materials. Authorities have not announced a formal cause, and officials have stressed that many questions will remain unanswered until crews can safely remove debris and inspect the failed sections more closely.
The next step is controlled demolition. The city said Friday’s operation was expected to bring heavier equipment to the scene, including a second crane and a wrecking ball, so crews can pull down unstable portions of the garage before beginning a fuller search and recovery effort in the debris field. Thompson said that approach was necessary not only to protect firefighters and rescue workers, but also to make sure crews could reach the lowest levels without causing another collapse. City officials canvassed nearby blocks before the demolition phase and warned residents and businesses to expect louder activity around the site. They said air-quality monitors had not shown spikes in pollution as of Friday morning, and health department staff would stay on scene as demolition and recovery moved forward.
The human toll has rippled beyond the construction site. Parker said Philadelphia’s building trades community was grieving alongside the affected families. Neighbors and workers in nearby businesses were left with a blocked-off corridor, flashing emergency lights and the sight of a project that had folded in on itself. Video circulated by local outlets appeared to show the structure giving way floor by floor, matching witness accounts that described a loud rumble and a sudden collapse. In public remarks, Parker said the city would continue to stand “shoulder to shoulder” with the families of the workers. Her administration also said support teams had been made available for residents and others shaken by the disaster as the neighborhood absorbs the loss and waits for word on the recovery.
As of Friday, one worker had been confirmed dead, two others had been treated and released, and the search for the two missing men had shifted into a recovery mission. The next milestone is the controlled demolition and debris removal expected to begin April 10, followed by a closer investigation into how the collapse started.
Author note: Last updated April 10, 2026.