POLISCOPE
Back to feed
NewsNBC 6 South FloridaJune 24, 2026Miami-Dade

Federal investigators release findings on 2021 Surfside building collapse

Five years after the Champlain Towers South collapse, federal investigators have released a technical report identifying structural design flaws as the cause of the tragedy. The report confirms that the collapse began with failed connections between garage columns and the pool deck, while ruling out external factors like sinkholes or nearby construction.

Surfside collapsepublic safetybuilding codesinvestigationmemorial
Read the full story at NBC 6 South Florida

Why It Matters

The findings provide a definitive cause for the 2021 collapse that killed 98 people and will inform future building safety codes and construction standards.

Key Facts

  • The collapse was caused by structural design flaws where margins against failure were too narrow from the start.
  • The failure began in early June 2021 when two connections between garage columns and the pool deck failed.
  • The southern pool deck edge became unseated from a supporting wall, causing a slab to sag and break away.
  • The slab break damaged two supporting connections, leading to a chain reaction of failures in neighboring connections.
  • Investigators officially ruled out vibrations from nearby construction, foundation failure, sinkholes, and storm surge effects as causes.
  • The final collapse occurred at 1:22 a.m. on June 24, 2021.
  • 98 people died as a result of the collapse.
  • The town of Surfside is holding remembrance events on the fifth anniversary of the tragedy.

Who's Mentioned

locationChamplain Towers South“The building that collapsed in Surfside.”personGlenn Bell“Co-lead investigator for the National Construction Safety Team.”organizationNational Institute of Standards and Technology“The federal agency that conducted the investigation.”personJudith Mitrani-Reiser“Co-lead investigator for the National Construction Safety Team.”