Accident Report Detail

Accident Summary Nr: 160367.015 - Employee is killed in trench collapse

Accident Summary Nr: 160367.015 -- Report ID: 0950611 -- Event Date: 09/28/2023
Inspection Nr	Date Opened	SIC	NAICS	Establishment Name
1700319.015	09/28/2023		237110	Darcy & Harty Construction, Inc.

Abstract: At 9:50 a.m. on September 28, 2023, an employee was working inside a trench over 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 per the Medical Examiner was determined to be mechanical asphyxia.

Keywords: Asphyxiated, Buried, Collapse, Dig, Excavation, Sewer, Shoring, Trench, Undrgrd Installation, Unstable Soil

Accident Details
End Use		Project Type		Project Cost	Stories	Non-building Height	Fatality
Pipeline		Maintenance or repair				8	X

Employee Details
Employee #	Inspection Nr	Age	Sex	Degree of Injury	Nature of Injury	Occupation	Construction
1	1700319.015	24	M	Fatality		Construction laborers	Distance of Fall: feet Worker Height Above Ground/Floor: feet Cause: Excavation Fatality Cause:

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