Mining Incidents

Sierra Ready Mix Quarry Metal/Non-Metal

Sierra Ready Mix · Surface
Jean, Clark County, NV  ·  Active
MSHA Mine ID: 2602594

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Fatalities
1
Total incidents
2
Years on record
2021–2023
Latest incident
Sep 2023
Compliance record
MSHA citations since 2007
177
citations
39
significant & substantial
$81,923
proposed penalties
$70,686
paid to date
Source: MSHA violations data, updated weekly.
Quarterly safety rates
Citations per million employee-hours, as reported to MSHA
Quarter Hours worked Citations S&S Per 1M hrs
2025 Q4 4,178 7 0 1675.4
2025 Q2 5,040 3 0 595.2
2025 Q1 852 5 2 5868.5
2024 Q4 848 0 0 0.0
2024 Q3 7,048 12 7 1702.6
2024 Q2 6,631 0 0 0.0
2024 Q1 8,643 3 1 347.1
2023 Q1 5,293 6 1 1133.6
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.

Fatalities at this mine

1 recorded
February 25, 2021 NV · Metal/Non-Metal hydrate plant operator Fatality · SLIP OR FALL OF PERSON
Sierra Ready Mix · Fall from headframe, derrick or tower

The employee was last seen on top of the tower and determined to be missing. The employee was found in a pipe traveling from the cyclone discharge box to the thickener tank. Investigation has revealed that the employee traveled outside the provided safe access to the cyclone discharge box. It is not yet determined how the employee entered the pipe.

Reportable incidents

1 on file (excluding fatalities above)

2023 · 1 incident

September 28, 2023 NV · Metal/Non-Metal outside foreman, leadman SLIP OR FALL OF PERSON
Sierra Ready Mix · Fall to lower level, (Not Elsewhere Classified)

EE was using marking paint to create a new berm that runs along the high wall. As the employee was marking the area along the high wall, this is when the EE fell from the high wall approximately 14 feet from the top of the high wall to the point where the EE laid at rest at the bottom of the high wall.