← Martin Marietta Materials Southwest LLC

Martin Marietta Materials Southwest LLC 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. Handtools (nonpowered)

    accidentRecord 220262860001
    Mill Creek Limestone Quarry · 3401859

    Days away from work only

    Accident narrative

    Employee was changing a motor when EE's right finger was hit with a 4lb hammer causing a laceration requiring 7 stitches.

  2. Annual refresher training of miners; minimum courses of instruction; hours of instruction.

    violationRecord 5008767
    Martin Marietta Merkel Plant · 4103848

    30 CFR 48.28(a)

  3. Notification by operator.

    violationRecord 5008766
    Martin Marietta Merkel Plant · 4103848

    30 CFR 41.11(d)

  4. Horns and backup alarms.

    violationRecord 5008764
    Martin Marietta Merkel Plant · 4103848

    30 CFR 56.14132(a)

  5. Regular Safety and Health Inspection

    inspectionRecord F037A25
    Martin Marietta Merkel Plant · 4103848

    9.5 on-site hours reported

  6. Verbal Hazard Complaint Inspections

    inspectionRecord F046684
    Hunter Stone · 4105230

    4.8 on-site hours reported

  7. Housekeeping.

    violationRecord 5179822
    Hunter Stone · 4105230

    30 CFR 56.20003(a)

  8. Regular Safety and Health Inspection

    inspectionRecord F020DC8
    Smithson Valley Quarry · 4104108

    4.3 on-site hours reported

  9. Eye protection.

    violationRecord 9748293
    Bells/Savoy Aggregate Operations · 4104019

    30 CFR 56.15004 · $151.00 proposed penalty

  10. Traffic control.

    violationRecord 9748292
    Bells/Savoy Aggregate Operations · 4104019

    30 CFR 56.9100(b)

  11. Regular Safety and Health Inspection

    inspectionRecord F03BB5C
    Bells/Savoy Aggregate Operations · 4104019

    15.5 on-site hours reported

  12. Regular Safety and Health Inspection

    inspectionRecord F03AA40
    NORTH BRIDGEPORT QUARRY · 4103360

    45.8 on-site hours reported

  13. Protection for openings around travelways.

    violationRecord 5250220
    NORTH BRIDGEPORT QUARRY · 4103360

    30 CFR 56.11012

  14. Berms or guardrails.

    violationRecord 5250219
    NORTH BRIDGEPORT QUARRY · 4103360

    30 CFR 56.9300(a)

  15. Insulation and fittings for power wires and cables.

    violationRecord 5176095
    NORTH BRIDGEPORT QUARRY · 4103360

    30 CFR 56.12008

  16. Parking procedures for unattended equipment.

    violationRecord 5175871
    NORTH BRIDGEPORT QUARRY · 4103360

    30 CFR 56.14207 · $151.00 proposed penalty

  17. Identification of power switches.

    violationRecord 5179060
    Bridgeport Stone Plant · 4100007

    30 CFR 56.12018 · $151.00 proposed penalty

  18. Requirement for container labels.

    violationRecord 5179059
    Bridgeport Stone Plant · 4100007

    30 CFR 47.41(a) · $151.00 proposed penalty

  19. General requirements.

    violationRecord 5175864
    Bridgeport Stone Plant · 4100007

    30 CFR 56.4200(b)(2)

  20. Safety defects; examination, correction and records.

    violationRecord 5175863
    Bridgeport Stone Plant · 4100007

    30 CFR 56.14100(b) · $151.00 proposed penalty

  21. Regular Safety and Health Inspection

    inspectionRecord F03B78F
    Bridgeport Stone Plant · 4100007

    17.0 on-site hours reported

  22. Electrical conductors.

    violationRecord 5176484
    San Pedro Quarry · 4101337

    30 CFR 56.12004 · $151.00 proposed penalty

  23. Regular Safety and Health Inspection

    inspectionRecord F04427D
    San Pedro Quarry · 4101337

    6.3 on-site hours reported

  24. Slip or fall of person

    accidentRecord 220262300006
    GARWOOD PLANT · 4102886

    No dys awy frm wrk,no rstr act

    Accident narrative

    EE fell and landed on EE's face when EE was startled by an animal that jumped out. EE's eye was swollen from safety glasses impact on eye.

  25. Brakes.

    violationRecord 5177944
    Mill Creek Limestone Quarry · 3401859

    30 CFR 56.14101(a)(2) · $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.