Machine operator was operating a CAT D9T dozer clearing overburden material from a bench. Operator reversed the machine backwards an estimated 200-300 ft. at a high speed without looking back and without responding to honking from another machine, per witness testimony. Machine fell off an edge. Operator was pronounced dead at the scene. Machine is total loss.
CalMat CoOperator
Controlled by Vulcan Materials Company
MSHA Operator ID: L16645
- Fatalities
- 3
- Total incidents
- 490
- Mines on record
- 45
- Period
- —
For counsel + compliance teams
Get an email the moment a new MSHA-reportable accident lands at any mine on file under CalMat Co. Useful for 105(c) defense intake, FMSHRC docket prep, and active client monitoring.
Top causes
- MACHINERY2 fatalities · 40 non-fatal
- OTHER1 fatality · 22 non-fatal
- HANDLING OF MATERIALS164 non-fatal
- SLIP OR FALL OF PERSON95 non-fatal
- HANDTOOLS (NONPOWERED)71 non-fatal
- POWERED HAULAGE47 non-fatal
Incident timeline
2026
2
2025
5
2024
11
2023
11 (1f)
2022
12
2021
12
2020
9
2019
18
2018
12
2017
19
2016
10
2015
9
2014
13
2013
4
2012
5
2011
10
2010
11
2009
14
2008
28
2007
29
2006
27
2005
32
2004
24
2003
31 (1f)
2002
40
2001
43 (1f)
2000
49
Mines on record
- SUN CITY PLANTAZ
- LITCHFIELD PLANTAZ
- West PlantAZ
- West BroadwayAZ
- BLACK ANGUS PLANTAZ
- VAL VISTA - CITRUS GROVE 150AZ
- PEORIA PLANTAZ
- MARANA PLANTAZ
- AVONDALE PLANTAZ
- MESAAZ
- Queen Creek StoneAZ
- Napa QuarryCA
- Lake Herman QuarryCA
- LEXINGTON QUARRYCA
- River Rock PlantCA
- Durbin PlantCA
- Sun Valley PlantCA
- San Emidio PlantCA
- Wheeler Ridge PlantCA
- TRP-Los Banos PlantCA
- TRP-Soledad Canyon PlantCA
- Pleasanton PlantCA
- Carroll Canyon PlantCA
- Mission Valley PlantCA
- Pala PlantCA
- Sanger PlantCA
- San Bernardino PlantCA
- FRIANT PLANTCA
- PALMDALE PLANTCA
- PILARCITOS QUARRYCA
- Upland PlantCA
- Sloan Canyon PlantCA
- RELIANCE PLANTCA
- Chula Vista QuarryCA
- Azusa RockCA
- TRP-Sacramento PlantCA
- Corona PlantCA
- TRP-Irvine Lake PlantCA
- Big Rock CreekCA
- Austin QuarryCA
- Shakespeare PitNM
- PLACITASNM
- Baca PitNM
- SANTO DOMINGO PUEBLO MINENM
- Torrance QuarryNM
Fatalities under this operator
3 recordedStruck against a moving object
Struck by falling object
THE VICTIM WAS POSITIONING THE WEDGE BAR AND BOLT ASSEMBLY TO SECURE THE UPPER PLATE IN A STATIONARY JAW CRUSHER. APPARENTLY THE LINER SHIFTED AND FELL, STRIKING THE VICTIM.
Drowning
EMPLOYEE WAS USING A HIGH PRESSURE WATER HOSE TO WASH OUT ACCUMULATED MATERIAL BELOW CONVEYER #11 (FLOATING) AND TAILPULLEY CONVEYER #4 (LAND)APPARENTLY FELL IN WATER PIT WHILE NOT WEARING A LIFE JACKET.