OSHA Accident Investigation · Summary #221603673
DARCY & HARTY CONSTRUCTION, INC.
SAN FRANCISCO, CA—
Event description
Employee is killed in trench collapse
Investigation abstract
At 9:50 a.m. on September 28, 2023, an employee was working inside a trench over per the Medical Examiner was determined to be mechanical asphyxia. 8 feet deep, replacing sewer parts. The employee was hand digging inside the trench, when it collapsed on the unshored side next to the street. The soil was sandy and granular. The shoring and sheeting on two sides was inadequate for the conditions and soil type, as well as improperly installed. The other two sides of the excavation had no shoring and sheeting at all. The unshored side next to the street collapsed. The employee working inside the excavation was completely buried for over two hours. Once the San Francisco Fire Department extricated the employee from the collapsed excavation, he was pronounced dead. Cause of death
Victim
-
#1 Fatality Age 24 M
- Event type
- 2
- Occupation code
- 869
Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.