Mining Incidents

1013 Coolidge Metal/Non-Metal

Controlled by Arcosa, Inc
Coolidge, Pinal County, AZ  ·  Active
MSHA Mine ID: 0203338

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Fatalities
0
Total incidents
10
Years on record
2016–2024
Latest incident
Feb 2024
Compliance record
MSHA citations since 2015
48
citations
15
significant & substantial
$10,162
proposed penalties
$9,465
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 5,768 5 3 866.9
2025 Q3 7,581 0 0 0.0
2025 Q2 968 3 0 3099.2
2025 Q1 968 0 0 0.0
2024 Q4 1,298 1 0 770.4
2024 Q3 6,150 0 0 0.0
2024 Q2 4,464 4 1 896.1
2023 Q4 2,032 0 0 0.0
Quarters under 100,000 reported hours are greyed: too few hours for a stable rate.
No fatalities recorded at this mine.

Reportable incidents

10 on file

2024 · 1 incident

February 7, 2024 AZ · Metal/Non-Metal laborer, blacksmith, bull gang, parts runner, roustabout, pick-up man, pitman SLIP OR FALL OF PERSON
Arcosa Aggregates West, LLC. · Over-exertion (Not Elsewhere Classified)

On 2-7-24 between 5 and 6 am. employee was checking the 57-rock stacker during routine monitoring of plant. EE noticed that belt #1 feeding the 57-rock stacker had stopped. EE started making way to the control panel to shut off belt to prevent overflow. On EE's way to the control panel to shut it off, EE stepped wrong hurting their left foot around the achilleas area.

2023 · 2 incidents

June 6, 2023 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator POWERED HAULAGE
Arcosa Aggregates West, LLC. · Struck against a moving object

The employee was operating a 988 loader when EE's back began to hurt. EE was diagnosed with a back sprain. Lost time as of 6/7/23.

May 4, 2023 AZ · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker STRIKING OR BUMPING
Arcosa Aggregates West, LLC. · Struck against stationary object

Employee was on EE's knees shoveling. When EE finished, EE put EE's hand down to help self up and contacted a sharp rock with EE's hand, resulting a cut that needed stitches.

2022 · 1 incident

June 27, 2022 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Southwest Rock Products · Over-exertion in pulling or pushing objects

The employee was assisting the crushing and screening plant operator with a screen change. As employee was lifting one of the screens to replace it, employee felt a "pull" in shoulder, causing pain.

2021 · 1 incident

March 18, 2021 AZ · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker MACHINERY
Southwest Rock Products · Struck by flying object

The employee was shoveling by the chute of a sand and gravel screen when a rock bounced off the chute and hit the employee on the hard hat. The employee complained of neck pain and was seen at an urgent care. Loss of time as of 3/19/21.

2019 · 2 incidents

April 11, 2019 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Southwest Rock Products · Over-exertion in pulling or pushing objects

The injured employee and another employee were pulling wire and dismantling a crushing unit. While pulling wire, the employee felt a jolt of pain in shoulder.

January 8, 2019 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDTOOLS (NONPOWERED)
Southwest Rock Products · Over-exertion in wielding or throwing objects

Employee was removing rocks from the grizzly bars at the feeder with a sledge hammer. While doing this, the employee felt a pain in back. Injury reported 1/9/19 and lost time as of 1/10/19.

2018 · 1 incident

March 8, 2018 AZ · Metal/Non-Metal crusher attendant/operator, pan feeder operator/worker NONPOWERED HAULAGE
Southwest Rock Products · Over-exertion in lifting objects

The employee claims to have been shoveling 3/8 rock into a wheel barrow while cleaning up the plant. Upon lifting the wheel barrow full of 3/8 rock, the employee felt "tearing and pain" in the abdomen. The employee was later diagnosed with two hernias.

2017 · 1 incident

August 11, 2017 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator DISORDERS (PHYSICAL AGENTS)
Southwest Rock Products · Contact with heat

Employee is a loader operator. When the air conditioning in the loader was unable to be repaired, the employee elected to run the loader (unbeknownst to Supervisor). Towards the end of the day, the employee complained of not feeling well, was seen in the emergency room and diagnosed with dehydration. Employee returned to work 8/14/17 (no lost time).

2016 · 1 incident

May 24, 2016 AZ · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator HANDLING OF MATERIALS
Southwest Rock Products · Struck by... (Not Elsewhere Classified)

Employee was preparing to top off the radiator of a 980 loader. When the employee unlatched the hood, the latch crushed a rock and the debris flew into the employee's eyes.