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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. Compliance Follow-up Inspection

    inspectionRecord F03C25D
    Des Moines Portable #1 · 1300150

    0.8 on-site hours reported

  2. Regular Safety and Health Inspection

    inspectionRecord F03A2B0
    Plant #81 · 2302296

    8.3 on-site hours reported

  3. Regular Safety and Health Inspection

    inspectionRecord F040DF0
    KANNAPOLIS QUARRY · 3100070

    5.5 on-site hours reported

  4. Electrical conductors.

    violationRecord 5043930
    Plant #81 · 2302296

    30 CFR 56.12004 · $151.00 proposed penalty

  5. Safety defects; examination, correction and records.

    violationRecord 5043929
    Plant #81 · 2302296

    30 CFR 56.14100(b) · Significant and substantial (S&S) · $755.00 proposed penalty

  6. Barricades and warning signs.

    violationRecord 5043928
    Plant #81 · 2302296

    30 CFR 56.20011 · $151.00 proposed penalty

  7. Housekeeping.

    violationRecord 5061172
    KANNAPOLIS QUARRY · 3100070

    30 CFR 56.20003(a) · $151.00 proposed penalty

  8. Regular Safety and Health Inspection

    inspectionRecord F041CB4
    Kentucky Avenue Mine · 1201762

    38.0 on-site hours reported

  9. Correction of hazardous conditions.

    violationRecord 5010305
    Kentucky Avenue Mine · 1201762

    30 CFR 57.3200 · Significant and substantial (S&S) · $504.00 proposed penalty

  10. Examination of working places.

    violationRecord 5010304
    Kentucky Avenue Mine · 1201762

    30 CFR 57.18002(a) · Significant and substantial (S&S) · $504.00 proposed penalty

  11. Roadway maintenance.

    violationRecord 5010303
    Kentucky Avenue Mine · 1201762

    30 CFR 57.9313 · Significant and substantial (S&S) · $336.00 proposed penalty

  12. Construction and maintenance of guards.

    violationRecord 5114478
    AMES MINE · 1300014

    30 CFR 57.14112(a)(1) · $151.00 proposed penalty

  13. Protection of persons at switchgear.

    violationRecord 5114199
    Fort Dodge Mine · 1300032

    30 CFR 57.12020 · $151.00 proposed penalty

  14. Insulation and fittings for power wires and cables.

    violationRecord 5047716
    Weeping Water Mine · 2500998

    30 CFR 57.12008 · $151.00 proposed penalty

  15. Regular Safety and Health Inspection

    inspectionRecord F02FF40
    Fort Dodge Mine · 1300032

    33.3 on-site hours reported

  16. Regular Safety and Health Inspection

    inspectionRecord F040DEF
    Garner Quarry · 3100072

    22.0 on-site hours reported

  17. Regular Safety and Health Inspection

    inspectionRecord F03F5FB
    Anderson Mine and Mill · 4000022

    33.0 on-site hours reported

  18. Spot Inspection

    inspectionRecord F01DC92
    Granite Canyon Quarry · 4800018

    3.3 on-site hours reported

  19. Parking procedures for unattended equipment.

    violationRecord 5061171
    Garner Quarry · 3100072

    30 CFR 56.14207 · $151.00 proposed penalty

  20. Machinery, equipment, and tools.

    violationRecord 5213324
    Granite Canyon Quarry · 4800018

    30 CFR 56.14205 · Significant and substantial (S&S) · $4,047.00 proposed penalty

  21. Regular Safety and Health Inspection

    inspectionRecord F020CCE
    Weeping Water Mine · 2500998

    40.0 on-site hours reported

  22. Regular Safety and Health Inspection

    inspectionRecord F03D0D5
    Perry Quarry · 0801083

    5.5 on-site hours reported

  23. Life jackets and belts.

    violationRecord 5061305
    Perry Quarry · 0801083

    30 CFR 56.15020 · Significant and substantial (S&S) · $151.00 proposed penalty

  24. Handling of materials

    accidentRecord 220262190026
    Weeping Water Mine · 2500998

    Days away from work only

    Accident narrative

    Miner injured bicep while reinstalling guard. Accident became reportable when surgery was performed on the injury.

  25. Handling of materials

    accidentRecord 220262370011
    Weeping Water Mine · 2500998

    Days away from work only

    Accident narrative

    Miner injured their bicep when lifting dehumidifier box. Became reportable at time of surgery on 8/18/2026

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.