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Plant #81 Metal/Non-Metal

Martin Marietta Materials, Inc. · Surface

Controlled by Martin Marietta Materials Inc

Mercer, Nodaway County, MO · Active

MSHA Mine ID: 2302296

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Email me when a new MSHA incident is filed at Plant #81.

Fatalities: 0
Total incidents: 5
Years on record: 2009–2023
Latest incident: Apr 2023

Compliance record

MSHA citations since 2006

citations

significant & substantial

$21,548

proposed penalties

$17,980

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	8,444	0	0	0.0
2025 Q3	7,493	0	0	0.0
2025 Q2	6,524	3	1	459.8
2025 Q1	7,775	2	0	257.2
2024 Q4	592	0	0	0.0
2024 Q3	7,814	1	0	128.0
2024 Q2	8,470	0	0	0.0
2024 Q1	4,587	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

5 on file

2023 · 1 incident

April 14, 2023 MO · Metal/Non-Metal warehouseman, bagger, palletizer/stacker, store keeper, packager, fabricator, cleaning plant operator SLIP OR FALL OF PERSON

Con-Agg Companies, LLC · Fall to the walkway or working surface

Employee was standing inside the crusher shack on the threshold at the door with right foot halfway out of the the shack. There is approx. a 4 inch drop to the catwalk from the threshold. EE's right foot slipped down to the catwalk and caused EE to fall to the catwalk. This action caused EE to fracture the small toe on right foot.

2020 · 1 incident

May 13, 2020 MO · Metal/Non-Metal front-end loader, scraper-loader operator, pan operator, payloader, scraper rig operator SLIP OR FALL OF PERSON

Con-Agg Companies, LLC · Fall from machine

Employee was in the process of dismounting a front end loader and shutting the cab door. EE lost footing and fell off the ladder to the ground. Employee was released to work the next day with work restrictions.

2016 · 1 incident

February 26, 2016 MO · Metal/Non-Metal groundman, yardman HANDTOOLS (NONPOWERED)

Norris Quarries, LLC · Struck by... (Not Elsewhere Classified)

Employee was cutting a hole in a piece of conveyor belting using a utility knife. The knife slipped out of the hole EE was cutting and lacerated EE's left hand. EE received stitches to close the wound. EE was released for full duty the same date of injury with minor lifting restrictions which did not prohibit EE from working full duty.

2012 · 1 incident

July 24, 2012 MO · Metal/Non-Metal maintenance man, mechanic, repair/serviceman, boilermaker, fueler, tire tech, field service tech HANDTOOLS (NONPOWERED)

Norris Quarries, LLC · Over-exertion (Not Elsewhere Classified)

Employee was rebuilding a water pump and applied a lot of pressure to remove the impeller. His left wrist was strained in the process and he was in pain. When he was seen by the physician, the injury showed possible signs of Carpel Tunnel Syndrome. He was issued a wrist splint to wear for two weeks and was placed with limited/restricted use of his left hand.

2009 · 1 incident

May 15, 2009 MO · Metal/Non-Metal outside foreman, leadman HANDLING OF MATERIALS

Norris Asphalt Paving Company · Over-exertion in lifting objects

Employee was moving a rolled up conveyor belt with a chain and a front end loader. During transport, the belt needed to be repositioned. While manually handling the belt the employee sustained a ruptured bicep tendon. The injury required surgery which was repaired on 5/20/09.