← 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. Safety defects; examination, correction and records.

    violationRecord 5040199
    Ottawa Quarry · 1401590

    30 CFR 56.14100(b) · $151.00 proposed penalty

  2. Electrical conductors.

    violationRecord 5113276
    New Ulm Quarry · 2100789

    30 CFR 56.12004 · $151.00 proposed penalty

  3. Construction and maintenance of guards.

    violationRecord 5113275
    New Ulm Quarry · 2100789

    30 CFR 56.14112(b) · $151.00 proposed penalty

  4. Electrical conductors.

    violationRecord 5113274
    New Ulm Quarry · 2100789

    30 CFR 56.12004 · $209.00 proposed penalty

  5. Brakes.

    violationRecord 5113273
    New Ulm Quarry · 2100789

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

  6. Inspection.

    violationRecord 5063232
    CAYCE QUARRY · 3800016

    30 CFR 56.4201(a)(2) · $165.00 proposed penalty

  7. Inspection and cover plates.

    violationRecord 5003476
    Marble Falls Plant · 4103190

    30 CFR 56.12032 · $193.00 proposed penalty

  8. Insulation and fittings for power wires and cables.

    violationRecord 5003475
    Marble Falls Plant · 4103190

    30 CFR 56.12008 · $193.00 proposed penalty

  9. Safety belts and lines.

    violationRecord 5003474
    Marble Falls Plant · 4103190

    30 CFR 56.15005 · $193.00 proposed penalty

  10. Handrails and toeboards.

    violationRecord 5003473
    Marble Falls Plant · 4103190

    30 CFR 56.11002 · Significant and substantial (S&S) · $1,431.00 proposed penalty

  11. Construction and maintenance of guards.

    violationRecord 5003472
    Marble Falls Plant · 4103190

    30 CFR 56.14112(a)(1) · $193.00 proposed penalty

  12. Parking procedures for unattended equipment.

    violationRecord 5003471
    Marble Falls Plant · 4103190

    30 CFR 56.14207 · $151.00 proposed penalty

  13. Slip or fall of person

    accidentRecord 220252250019
    Gleason Mills & Mines · 4000195

    Days away from work only

    Accident narrative

    Employee was climbing down steps on off-highway haul truck and slipped. When employee caught themselves on the rail, they injured their left shoulder.

  14. Regular Safety and Health Inspection

    inspectionRecord F020DE5
    AUBURN QUARRY · 0900436

    17.5 on-site hours reported

  15. Regular Safety and Health Inspection

    inspectionRecord F015C4F
    Ottawa Quarry · 1401590

    12.0 on-site hours reported

  16. Regular Safety and Health Inspection

    inspectionRecord F0184EE
    New Ulm Quarry · 2100789

    21.8 on-site hours reported

  17. Regular Safety and Health Inspection

    inspectionRecord F023983
    Sturgeon Quarry · 2302099

    1.3 on-site hours reported

  18. Regular Safety and Health Inspection

    inspectionRecord F02ADE6
    CAYCE QUARRY · 3800016

    28.8 on-site hours reported

  19. Regular Safety and Health Inspection

    inspectionRecord F018F5C
    Marble Falls Plant · 4103190

    18.5 on-site hours reported

  20. Electrical conductors.

    violationRecord 5113272
    New Ulm Quarry · 2100789

    30 CFR 56.12004 · $151.00 proposed penalty

  21. Electrical conductors.

    violationRecord 5113271
    New Ulm Quarry · 2100789

    30 CFR 56.12004 · $151.00 proposed penalty

  22. Construction and maintenance of guards.

    violationRecord 5061706
    CAYCE QUARRY · 3800016

    30 CFR 56.14112(b) · $288.00 proposed penalty

  23. Barricades and warning signs.

    violationRecord 5061705
    CAYCE QUARRY · 3800016

    30 CFR 56.20011 · $642.00 proposed penalty

  24. Construction and maintenance of guards.

    violationRecord 5061704
    CAYCE QUARRY · 3800016

    30 CFR 56.14112(b) · $288.00 proposed penalty

  25. Compliance Follow-up Inspection

    inspectionRecord F0190F4
    Maylene Plant & Quarry · 0100634

    1.0 on-site hours reported

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.