← 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. Correction of hazardous conditions.

    violationRecord 9776987
    Crab Orchard Mine and Mill · 4000087

    30 CFR 57.3200 · $151.00 proposed penalty

  2. Regular Safety and Health Inspection

    inspectionRecord F03021F
    O'Neal Quarry · 0103076

    4.8 on-site hours reported

  3. Regular Safety and Health Inspection

    inspectionRecord F017962
    Castle Hayne Quarry · 3100063

    19.0 on-site hours reported

  4. Regular Safety and Health Inspection

    inspectionRecord F0319F6
    Benson Quarry · 3101979

    18.8 on-site hours reported

  5. Regular Safety and Health Inspection

    inspectionRecord F02D952
    Anderson Mine and Mill · 4000022

    28.0 on-site hours reported

  6. Regular Safety and Health Inspection

    inspectionRecord F0259A3
    Crab Orchard Mine and Mill · 4000087

    48.3 on-site hours reported

  7. Brakes.

    violationRecord 9699995
    AMES MINE · 1300014

    30 CFR 57.14101(a)(2) · $151.00 proposed penalty

  8. Regular Safety and Health Inspection

    inspectionRecord F010725
    ELIZABETHTON QUARRY · 4003075

    12.5 on-site hours reported

  9. Inspection and cover plates.

    violationRecord 9787837
    Noblesville Stone · 1202176

    30 CFR 57.12032 · Significant and substantial (S&S) · $2,712.00 proposed penalty

  10. Examination of working places.

    violationRecord 5004956
    Rio Medina · 4103594

    30 CFR 56.18002(c) · $151.00 proposed penalty

  11. Examination of working places.

    violationRecord 5004955
    Rio Medina · 4103594

    30 CFR 56.18002(b) · $151.00 proposed penalty

  12. Parking procedures for unattended equipment.

    violationRecord 5004954
    Rio Medina · 4103594

    30 CFR 56.14207 · $151.00 proposed penalty

  13. Regular Safety and Health Inspection

    inspectionRecord F019EAE
    HOMER QUARRY · 0900958

    8.5 on-site hours reported

  14. Regular Safety and Health Inspection

    inspectionRecord F02655F
    Carmel Sand & Gravel · 1202124

    14.8 on-site hours reported

  15. Compliance Follow-up Inspection

    inspectionRecord F0319F4
    CLARKS QUARRY · 3102009

    3.3 on-site hours reported

  16. Regular Safety and Health Inspection

    inspectionRecord F017961
    Onslow Quarry · 3102120

    11.3 on-site hours reported

  17. Regular Safety and Health Inspection

    inspectionRecord F017F77
    Rio Medina · 4103594

    10.3 on-site hours reported

  18. Compliance Follow-up Inspection

    inspectionRecord F01E99E
    Martin Marietta Merkel Plant · 4103848

    0.5 on-site hours reported

  19. Safety defects; examination, correction and records.

    violationRecord 9787793
    Carmel Sand & Gravel · 1202124

    30 CFR 56.14100(b) · $151.00 proposed penalty

  20. Surface electric substations and liquid storage facilities.

    violationRecord 9699994
    AMES MINE · 1300014

    30 CFR 57.4130(b) · $151.00 proposed penalty

  21. Spillage and leakage.

    violationRecord 9699993
    AMES MINE · 1300014

    30 CFR 57.4102 · $151.00 proposed penalty

  22. Spillage and leakage.

    violationRecord 9699992
    AMES MINE · 1300014

    30 CFR 57.4102 · $151.00 proposed penalty

  23. Safety belts and lines.

    violationRecord 5074256
    North East Quarry · 1800417

    30 CFR 56.15005 · Significant and substantial (S&S) · $313.00 proposed penalty

  24. Storage of flammable liquids underground.

    violationRecord 5113866
    Fort Calhoun Underground Mine · 2501300

    30 CFR 57.4460(a)(1) · $151.00 proposed penalty

  25. Correction of dangerous conditions.

    violationRecord 5004799
    Davis Quarry · 3401299

    30 CFR 56.12030 · Significant and substantial (S&S) · $592.00 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.