← Martin Marietta Materials Inc.

Martin Marietta Materials Inc. safety activity

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

2025-01-01 – 2026-10-28Database snapshot · 2026-10-28

Safety activity

  1. Regular Safety and Health Inspection

    inspectionRecord F03F891
    Gleason Mills & Mines · 4000195

    2.0 on-site hours reported

  2. Regular Safety and Health Inspection

    inspectionRecord F022428
    Gleason Mills & Mines · 4000195

    12.0 on-site hours reported

  3. Verbal Hazard Complaint Inspections

    inspectionRecord F02240D
    Gleason Mills & Mines · 4000195

    2.0 on-site hours reported

  4. Regular Safety and Health Inspection

    inspectionRecord F022404
    Gleason Mills & Mines · 4000195

    15.8 on-site hours reported

  5. Securing gas cylinders.

    violationRecord 9789997
    Gleason Mills & Mines · 4000195

    30 CFR 56.16005 · $151.00 proposed penalty

  6. Slip or fall of person

    accidentRecord 220253640009
    Gleason Mills & Mines · 4000195

    Dys awy frm wrk & restrctd act

    Accident narrative

    Employee twisted knee while climbing stairs to the lab.

  7. 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.

  8. Safety defects; examination, correction and records.

    violationRecord 9789242
    Gleason Mills & Mines · 4000195

    30 CFR 56.14100(b) · $151.00 proposed penalty

  9. Protection of persons at switchgear.

    violationRecord 9789241
    Gleason Mills & Mines · 4000195

    30 CFR 56.12020 · $151.00 proposed penalty

  10. Requirement for container labels.

    violationRecord 9789240
    Gleason Mills & Mines · 4000195

    30 CFR 47.41(a) · $151.00 proposed penalty

  11. Housekeeping.

    violationRecord 9789239
    Gleason Mills & Mines · 4000195

    30 CFR 56.20003(a) · $151.00 proposed penalty

  12. Regular Safety and Health Inspection

    inspectionRecord F009838
    Gleason Mills & Mines · 4000195

    29.5 on-site hours reported

  13. Combustible waste.

    violationRecord 9789238
    Gleason Mills & Mines · 4000195

    30 CFR 56.4104(a) · $151.00 proposed penalty

  14. Construction and maintenance of guards.

    violationRecord 9786468
    Gleason Mills & Mines · 4000195

    30 CFR 56.14112(b) · Significant and substantial (S&S) · $398.00 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.