Deadly Parking Garage Collapse In Philadelphia

No People April 9 2026 CHOP Children’s Hospital of Philadelphia Grays Ferry Pennsylvania Philadelphia United States building collapse collapse aftermath construction accident construction site construction workers crane emergency response foreground asphalt heavy equipment low angle missing workers parking garage collapse parking garage under construction partial collapse recovery operation recovery scene rescue operation structural collapse wide scene worker death workplace accident crews partially collapsed parking garage April 9 2026 construction Children's Hospital of Philadelphia employee parking Grays Ferry Ave structural failure accident worker fatalities presumed dead engineering failure workplace safety rescue operations structural integrity safety regulations infrastructure construction industry occupational hazards Philadelphia news accident investigation building project urban infrastructure.