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Occupational Safety and Health Administration OSHA

Inspection Detail

Violation Summary
Serious Willful Repeat Other Unclass Total
Initial Violations 1 1
Current Violations 1 1
Initial Penalty $0 $0 $0 $300 $0 $300
Current Penalty $0 $0 $0 $300 $0 $300
FTA Amount $0 $0 $0 $0 $0 $0

Violation Items
# ID Type Standard Issuance Abate Curr$ Init$ Fta$ Contest LastEvent
  1. 01001 Other 1509 A 01/03/2006 01/06/2006 $300 $300 $0 -

Accident Investigation Summary
Summary Nr: 202441796 Event: 07/01/2005Employee Fractures Collar Bone In Trench Cave-In
At 1:30 p.m. on July 1, 2005, Employee #1 was working as a backhoe operator for J. H. Thompson & Sons, Inc., in Yucca Valley, CA. He had been operating a Caterpillar Model Number 446 backhoe, with Serial Number 503, digging an excavation. After digging approximately 200 feet of the excavation, he got off the backhoe and entered the excavation. Employee #1 and several coworkers were inside the excavation, which was 5 feet 3 inches deep, 3 feet wide at the bottom, and 13 feet wide at the top. They were installing 12-inch-diameter C-900 PVC water main pipe, using a 6-foot-long, 3-inch-diameter steel push bar to move the pipes into position. Employee #1 was using the push bar, when the excavation caved in. Though his coworkers were uninjured, Employee #1 was buried up to his waist. He sustained a fractured collar bone. He was hospitalized for 6 days at Hi-Desert Medical Center, in Joshua Tree, CA. An individual who was designated as a competent person stated that the soil was classified as class B, that it was benched back 1:1, and that he had been told that the width of the excavation at the top was 13 feet. The general contractor provided a geotechnical engineering report that indicated that the trench should have been classified as class C soil and benched back 1.5:1. The employer is a grading and excavating contractor.
Keywords: excavation, fracture, collarbone, trench, water pipe, cave-in, backhoe
Inspection Degree Nature Occupation
1 307457580 Hospitalized injury Fracture Excavating and loading machine operators

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