← 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. Regular Safety and Health Inspection

    inspectionRecord F03C16D
    Georgetown II Quarry · 3800525

    21.8 on-site hours reported

  2. Safety defects; examination, correction and records.

    violationRecord 5177958
    Mill Creek · 3401285

    30 CFR 56.14100(a) · $151.00 proposed penalty

  3. Brakes.

    violationRecord 5177957
    Mill Creek · 3401285

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

  4. Brakes.

    violationRecord 5177956
    Mill Creek · 3401285

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

  5. Brakes.

    violationRecord 5177955
    Mill Creek · 3401285

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

  6. Parking procedures for unattended equipment.

    violationRecord 9748282
    Snyder · 3401651

    30 CFR 56.14207 · $151.00 proposed penalty

  7. Parking procedures for unattended equipment.

    violationRecord 9748281
    Snyder · 3401651

    30 CFR 56.14207 · $151.00 proposed penalty

  8. Regular Safety and Health Inspection

    inspectionRecord F0376BC
    Sully Mine · 1300063

    14.3 on-site hours reported

  9. Brakes.

    violationRecord 5177954
    Mill Creek · 3401285

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

  10. Inspection.

    violationRecord 5177953
    Mill Creek · 3401285

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

  11. Safe access.

    violationRecord 5210523
    Milford Quarry · 4202177

    30 CFR 56.11001 · $151.00 proposed penalty

  12. Moving machine parts.

    violationRecord 5210522
    Milford Quarry · 4202177

    30 CFR 56.14107(a) · $151.00 proposed penalty

  13. Controls and switches.

    violationRecord 5210520
    Milford Quarry · 4202177

    30 CFR 56.12002 · $151.00 proposed penalty

  14. Inspection and cover plates.

    violationRecord 5210519
    Milford Quarry · 4202177

    30 CFR 56.12032 · $151.00 proposed penalty

  15. Warning signs.

    violationRecord 5210518
    Milford Quarry · 4202177

    30 CFR 56.4101 · $193.00 proposed penalty

  16. Requirement for container labels.

    violationRecord 5210517
    Milford Quarry · 4202177

    30 CFR 47.41(a) · $151.00 proposed penalty

  17. Safe access.

    violationRecord 5210516
    Milford Quarry · 4202177

    30 CFR 56.11001 · $151.00 proposed penalty

  18. Berms or guardrails.

    violationRecord 5210515
    Milford Quarry · 4202177

    30 CFR 56.9300(b) · Significant and substantial (S&S) · $959.00 proposed penalty

  19. Handtools (nonpowered)

    accidentRecord 220262080029
    Snyder · 3401651

    No dys awy frm wrk,no rstr act

    Accident narrative

    While changing the wear segments on the -3 loader, EE removed the retaining nuts. EE began driving the bolts out from the top-down using a hammer. After striking one of the bolts the hammer contacted the edge of a loose nut that was resting adjacent to the bolt hole. The impact caused the nut to become airborne and strike EE in the mouth, resulting in an injury to EE tooth.

  20. Compliance Follow-up Inspection

    inspectionRecord F03C4DB
    Weeping Water Mine · 2500998

    11.3 on-site hours reported

  21. Regular Safety and Health Inspection

    inspectionRecord F03BB51
    Snyder · 3401651

    10.5 on-site hours reported

  22. Regular Safety and Health Inspection

    inspectionRecord F02860E
    Milford Quarry · 4202177

    14.5 on-site hours reported

  23. Regular Safety and Health Inspection

    inspectionRecord F03C32A
    Mill Creek · 3401285

    15.0 on-site hours reported

  24. Regular Safety and Health Inspection

    inspectionRecord F038624
    Fast Pack 2 Portable 2 · 2302403

    8.3 on-site hours reported

  25. Safety defects; examination, correction and records.

    violationRecord 5047717
    Weeping Water Mine · 2500998

    30 CFR 57.14100(b) · Significant and substantial (S&S) · $165.00 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.