← 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. Action level.

    violationRecord 5193127
    CHESTERFIELD QUARRY · 3800682

    30 CFR 62.120 · $151.00 proposed penalty

  2. Action level.

    violationRecord 5193126
    CHESTERFIELD QUARRY · 3800682

    30 CFR 62.120 · $151.00 proposed penalty

  3. Electrical

    accidentRecord 220262460005
    E-Town S&G - 460 · 3304279

    Days restricted activity only

    Accident narrative

    An electrician was involved in an arc flash type event which resulted in burns on EE's left hand.

  4. Regular Safety and Health Inspection

    inspectionRecord F014D72
    DOUGLAS PLANT · 0200022

    6.5 on-site hours reported

  5. Regular Safety and Health Inspection

    inspectionRecord F0313F6
    Six Mile Quarry · 0901144

    9.0 on-site hours reported

  6. Regular Safety and Health Inspection

    inspectionRecord F0294DC
    New Miami Plant · 3304383

    3.0 on-site hours reported

  7. Warnings prior to starting or moving equipment.

    violationRecord 5042369
    Bluff City Mine · 1100122

    30 CFR 57.14200

  8. Identification of power switches.

    violationRecord 5179060
    Bridgeport Stone Plant · 4100007

    30 CFR 56.12018 · $151.00 proposed penalty

  9. Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.

    violationRecord 5250040
    Clifton Plant · 4100013

    30 CFR 50.30(a) · $151.00 proposed penalty

  10. Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.

    violationRecord 5250039
    Clifton Plant · 4100013

    30 CFR 50.30(a) · $151.00 proposed penalty

  11. Moving machine parts.

    violationRecord 5176981
    Clifton Plant · 4100013

    30 CFR 56.14107(a) · Significant and substantial (S&S)

  12. Moving machine parts.

    violationRecord 5176980
    Clifton Plant · 4100013

    30 CFR 56.14107(a)

  13. Regular Safety and Health Inspection

    inspectionRecord F01079C
    WATAUGA QUARRY · 4000124

    34.5 on-site hours reported

  14. Housekeeping.

    violationRecord 5102459
    Clayton Aggregates · 0400159

    30 CFR 56.20003(c) · $151.00 proposed penalty

  15. Moving machine parts.

    violationRecord 5102458
    Clayton Aggregates · 0400159

    30 CFR 56.14107(a) · $151.00 proposed penalty

  16. Surface electric substations and liquid storage facilities.

    violationRecord 9788962
    Bluff City Mine · 1100122

    30 CFR 57.4130(b)

  17. Safe access.

    violationRecord 9788961
    Bluff City Mine · 1100122

    30 CFR 57.11001

  18. Fuel lines.

    violationRecord 9272754
    WATAUGA QUARRY · 4000124

    30 CFR 56.4501 · $151.00 proposed penalty

  19. Requirement for container labels.

    violationRecord 5179059
    Bridgeport Stone Plant · 4100007

    30 CFR 47.41(a) · $151.00 proposed penalty

  20. General requirements.

    violationRecord 5175864
    Bridgeport Stone Plant · 4100007

    30 CFR 56.4200(b)(2)

  21. Safety defects; examination, correction and records.

    violationRecord 5175863
    Bridgeport Stone Plant · 4100007

    30 CFR 56.14100(b) · $151.00 proposed penalty

  22. Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.

    violationRecord 5250038
    Clifton Plant · 4100013

    30 CFR 50.30(a) · $151.00 proposed penalty

  23. Identification of power switches.

    violationRecord 5250037
    Clifton Plant · 4100013

    30 CFR 56.12018 · $151.00 proposed penalty

  24. Securing movable parts.

    violationRecord 5250036
    Clifton Plant · 4100013

    30 CFR 56.14206(b) · $151.00 proposed penalty

  25. Inspection and cover plates.

    violationRecord 5250035
    Clifton Plant · 4100013

    30 CFR 56.12032 · $151.00 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.