← 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. Electrical conductors.

    violationRecord 5069826
    Ruby Quarry · 0900074

    30 CFR 56.12004 · $151.00 proposed penalty

  2. Safety defects; examination, correction and records.

    violationRecord 5087215
    AUBURN QUARRY · 0900436

    30 CFR 56.14100(b) · Significant and substantial (S&S) · $313.00 proposed penalty

  3. Electrical conductors.

    violationRecord 9697710
    Ferguson Quarry · 1300124

    30 CFR 56.12004 · $151.00 proposed penalty

  4. Handling of materials

    accidentRecord 220253370003
    Silver Lake West Sand · 1401702

    Days restricted activity only

    Accident narrative

    Employee was attempting to lift the end of a office desk and pulled a muscle in the left arm. Lifting item.

  5. Regular Safety and Health Inspection

    inspectionRecord F03A875
    Ruby Quarry · 0900074

    16.0 on-site hours reported

  6. Regular Safety and Health Inspection

    inspectionRecord F019EB4
    AUBURN QUARRY · 0900436

    12.5 on-site hours reported

  7. Spot Inspection

    inspectionRecord F026564
    Carmel Sand & Gravel · 1202124

    1.8 on-site hours reported

  8. Regular Safety and Health Inspection

    inspectionRecord F0293CF
    Ferguson Quarry · 1300124

    15.8 on-site hours reported

  9. Compliance Follow-up Inspection

    inspectionRecord F02A0AC
    Eudora Quarry · 1401609

    2.5 on-site hours reported

  10. Regular Safety and Health Inspection

    inspectionRecord F011960
    FAIRFIELD GRAVEL · 3301396

    18.0 on-site hours reported

  11. Regular Safety and Health Inspection

    inspectionRecord F0280E3
    Calhoun Sand · 3800716

    13.8 on-site hours reported

  12. Housekeeping.

    violationRecord 5069825
    Ruby Quarry · 0900074

    30 CFR 56.20003(b) · $151.00 proposed penalty

  13. Locking transformer enclosures.

    violationRecord 5069824
    Ruby Quarry · 0900074

    30 CFR 56.12068 · $151.00 proposed penalty

  14. Regular Safety and Health Inspection

    inspectionRecord F026563
    Kokomo Mine · 1202105

    11.5 on-site hours reported

  15. Escape routes.

    violationRecord 5010404
    Kokomo Mine · 1202105

    30 CFR 57.11051(b) · Significant and substantial (S&S) · $151.00 proposed penalty

  16. First aid materials.

    violationRecord 5010403
    Kokomo Mine · 1202105

    30 CFR 57.15001 · $151.00 proposed penalty

  17. Check-in, check-out system.

    violationRecord 9766555
    Weeping Water Mine · 2500998

    30 CFR 57.11058 · $151.00 proposed penalty

  18. Regular Safety and Health Inspection

    inspectionRecord F02AE53
    Pacific Quarry · 4500844

    5.0 on-site hours reported

  19. Spillage and leakage.

    violationRecord 9766554
    Weeping Water Mine · 2500998

    30 CFR 57.4102 · $151.00 proposed penalty

  20. Correction of hazardous conditions.

    violationRecord 9766553
    Weeping Water Mine · 2500998

    30 CFR 57.3200 · $336.00 proposed penalty

  21. Escape routes.

    violationRecord 9766552
    Weeping Water Mine · 2500998

    30 CFR 57.11051(b) · $336.00 proposed penalty

  22. Controls and switches.

    violationRecord 9765595
    Weeping Water Mine · 2500998

    30 CFR 57.12002 · $151.00 proposed penalty

  23. Testing grounding systems.

    violationRecord 5103443
    Martin Marietta - Gabbs Mine · 2600002

    30 CFR 56.12028 · $755.00 proposed penalty

  24. Moving machine parts.

    violationRecord 5103442
    Martin Marietta - Gabbs Mine · 2600002

    30 CFR 56.14107(a) · $959.00 proposed penalty

  25. Construction and maintenance of guards.

    violationRecord 5103386
    Martin Marietta - Gabbs Mine · 2600002

    30 CFR 56.14112(b) · Significant and substantial (S&S) · $2,503.00 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.