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Martin Marietta Materials, Inc. safety activity

MSHA violations, accident reports and inspections across the current mine portfolio.

2025-01-01 – 2026-10-31Database snapshot · 2026-10-31

Safety activity

  1. Inspection.

    violationRecord 5040471
    BUILDEX · 2300319

    30 CFR 56.4201(a)(1) · $151.00 proposed penalty

  2. Insulation and fittings for power wires and cables.

    violationRecord 5040470
    BUILDEX · 2300319

    30 CFR 56.12008 · $151.00 proposed penalty

  3. Inspection.

    violationRecord 5113407
    Fort Calhoun Underground Mine · 2501300

    30 CFR 57.4201(a)(2) · $193.00 proposed penalty

  4. Check-in, check-out system.

    violationRecord 5113406
    Fort Calhoun Underground Mine · 2501300

    30 CFR 57.11058 · $151.00 proposed penalty

  5. Powered haulage

    accidentRecord 220251710027
    CHARLOTTE QUARRY · 3100057

    Days away from work only

    Accident narrative

    It appears that an employee experienced a personal medical event while operating a haul truck. This medical event is believed to have resulted in a loss of consciousness, leading to a loss of vehicle control and a rollover incident. Available evidence suggests that it may be attributable to a personal medical condition rather than factors related to the work environment.

  6. Slip or fall of person

    accidentRecord 220251640010
    Clifton Plant · 4100013

    No dys awy frm wrk,no rstr act

    Accident narrative

    Employee was greasing when EE stepped down from elevated platform (2 step) EE's left ankle rolled fracturing EE's fifth metatarsal. Employee was initially being treated with conservative care however went for X-rays on 06/11/2025 where it was determined to be fractured.

  7. Non-Fatal Accident Investigation

    inspectionRecord F011C06
    CHARLOTTE QUARRY · 3100057

    3.3 on-site hours reported

  8. Safety defects; examination, correction and records.

    violationRecord 5063217
    Georgetown II Quarry · 3800525

    30 CFR 56.14100(b) · $151.00 proposed penalty

  9. Insulation and fittings for power wires and cables.

    violationRecord 5063216
    Georgetown II Quarry · 3800525

    30 CFR 56.12008 · $151.00 proposed penalty

  10. Moving machine parts.

    violationRecord 5063215
    Georgetown II Quarry · 3800525

    30 CFR 56.14107(a) · $151.00 proposed penalty

  11. Regular Safety and Health Inspection

    inspectionRecord F0184D8
    Iowa Grading 2 · 1302316

    4.8 on-site hours reported

  12. Regular Safety and Health Inspection

    inspectionRecord F0184D9
    DSM Portable Sand · 1302504

    3.0 on-site hours reported

  13. Verbal Hazard Complaint Inspections

    inspectionRecord F01D21D
    BAKERS QUARRY · 3100071

    1.0 on-site hours reported

  14. Regular Safety and Health Inspection

    inspectionRecord F01576C
    Georgetown II Quarry · 3800525

    17.5 on-site hours reported

  15. Brakes.

    violationRecord 5051146
    Spec Agg Quarry · 0500860

    30 CFR 56.14101(a)(3) · $151.00 proposed penalty

  16. Handrails and toeboards.

    violationRecord 5113232
    Iowa Grading 2 · 1302316

    30 CFR 56.11002 · $151.00 proposed penalty

  17. Construction and maintenance of guards.

    violationRecord 5113405
    Fort Calhoun Underground Mine · 2501300

    30 CFR 57.14112(a)(1) · $151.00 proposed penalty

  18. Brakes.

    violationRecord 5063214
    Georgetown II Quarry · 3800525

    30 CFR 56.14101(a)(2) · $226.00 proposed penalty

  19. Handtools (nonpowered)

    accidentRecord 220251680017
    O'Neal Quarry & Mill · 0100003

    No dys awy frm wrk,no rstr act

    Accident narrative

    Employee was cutting zip ties off a set of new loppers and as they were pushing on the box cutter, it went through the zip tie cutting a finger.

  20. Regular Safety and Health Inspection

    inspectionRecord F01CC21
    Spec Agg Quarry · 0500860

    10.8 on-site hours reported

  21. Regular Safety and Health Inspection

    inspectionRecord F01532E
    Berkeley Quarry · 3800072

    21.8 on-site hours reported

  22. Parking procedures for unattended equipment.

    violationRecord 9787397
    Kentucky Avenue Mine · 1201762

    30 CFR 57.14207 · $151.00 proposed penalty

  23. Correction of hazardous conditions.

    violationRecord 9787396
    Kentucky Avenue Mine · 1201762

    30 CFR 57.3200 · Significant and substantial (S&S) · $697.00 proposed penalty

  24. Electrical conductors.

    violationRecord 5113231
    Durham Mine & Mill · 1301225

    30 CFR 57.12004 · $245.00 proposed penalty

  25. Unguarded conveyors with adjacent travelways.

    violationRecord 5040283
    Iron Mountain Quarry · 2300210

    30 CFR 56.14109(a) · $151.00 proposed penalty

Sources and definitions

MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).

Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.

Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.

Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.

Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.

S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.

Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.

Portfolio totals use current mine membership, including events before the current owner or operator's tenure.