← Martin Marietta Materials, Inc.

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. Protection of explosive material.

    violationRecord 5043117
    New Melle Mine · 2302043

    30 CFR 57.6905(b) · Significant and substantial (S&S) · $336.00 proposed penalty

  2. Correction of hazardous conditions.

    violationRecord 5043116
    New Melle Mine · 2302043

    30 CFR 57.3200 · $151.00 proposed penalty

  3. Check-in, check-out system.

    violationRecord 5270003
    Fort Calhoun Underground Mine · 2501300

    30 CFR 57.11058 · $288.00 proposed penalty

  4. Correction of hazardous conditions.

    violationRecord 5270002
    Fort Calhoun Underground Mine · 2501300

    30 CFR 57.3200 · Significant and substantial (S&S) · $549.00 proposed penalty

  5. Examination of working places.

    violationRecord 5270001
    Fort Calhoun Underground Mine · 2501300

    30 CFR 57.18002(b) · $151.00 proposed penalty

  6. Oxygen-deficiency testing.

    violationRecord 5114000
    Fort Calhoun Underground Mine · 2501300

    30 CFR 57.8527 · $151.00 proposed penalty

  7. Regular Safety and Health Inspection

    inspectionRecord F0402D3
    Fort Calhoun Underground Mine · 2501300

    35.3 on-site hours reported

  8. Compliance Follow-up Inspection

    inspectionRecord F03C4D2
    Woodbine Quarry · 1401470

    0.0 on-site hours reported

  9. Brakes.

    violationRecord 5111437
    Martin Marietta - Woodville Lime & Stone · 3300156

    30 CFR 56.14101(a)(2) · $151.00 proposed penalty

  10. Horns and backup alarms.

    violationRecord 5111436
    Martin Marietta - Woodville Lime & Stone · 3300156

    30 CFR 56.14132(a) · $151.00 proposed penalty

  11. Spot Inspection

    inspectionRecord F013A56
    PAULDING QUARRY · 0901107

    4.5 on-site hours reported

  12. Regular Safety and Health Inspection

    inspectionRecord F039D96
    Kokomo Mine · 1202105

    13.0 on-site hours reported

  13. Regular Safety and Health Inspection

    inspectionRecord 7010842
    Noblesville Stone · 1202176

    22.8 on-site hours reported

  14. Insulation and fittings for power wires and cables.

    violationRecord 9776614
    PAULDING QUARRY · 0901107

    30 CFR 56.12008 · $151.00 proposed penalty

  15. Safety defects; examination, correction and records.

    violationRecord 5042359
    Barnhart Quarry · 2302469

    30 CFR 56.14100(b) · $151.00 proposed penalty

  16. Inspection.

    violationRecord 5111435
    Martin Marietta - Woodville Lime & Stone · 3300156

    30 CFR 56.4201(a)(2) · $151.00 proposed penalty

  17. Temporary, portable containers.

    violationRecord 5111434
    Martin Marietta - Woodville Lime & Stone · 3300156

    30 CFR 47.44(b) · $151.00 proposed penalty

  18. Verbal Hazard Complaint Inspections

    inspectionRecord F03AB55
    Montevallo Quarry & Mill · 0100040

    4.0 on-site hours reported

  19. Regular Safety and Health Inspection

    inspectionRecord F038621
    Barnhart Quarry · 2302469

    14.3 on-site hours reported

  20. Regular Safety and Health Inspection

    inspectionRecord F02216C
    MAIDEN QUARRY · 3102125

    9.0 on-site hours reported

  21. Machinery, equipment, and tools.

    violationRecord 5064672
    Fort Myers Quarry · 0801203

    30 CFR 56.14205 · Significant and substantial (S&S) · $151.00 proposed penalty

  22. Electrical conductors.

    violationRecord 5064671
    Fort Myers Quarry · 0801203

    30 CFR 56.12004 · $151.00 proposed penalty

  23. Electrical conductors.

    violationRecord 5064670
    Fort Myers Quarry · 0801203

    30 CFR 56.12004 · $245.00 proposed penalty

  24. Safety defects; examination, correction and records.

    violationRecord 5061297
    Fort Myers Quarry · 0801203

    30 CFR 56.14100(b) · $151.00 proposed penalty

  25. Correction of hazardous conditions.

    violationRecord 5042358
    Barnhart Quarry · 2302469

    30 CFR 56.3200 · $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.