Martin Marietta Materials, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Construction and maintenance of guards.
Tory East Quarry · 230221330 CFR 56.14112(a)(1) · $151.00 proposed penalty
Inspection.
Tory East Quarry · 230221330 CFR 56.4201(a)(5) · $151.00 proposed penalty
Horns and backup alarms.
Martin Marietta - Woodville Lime & Stone · 330015630 CFR 56.14132(a) · $151.00 proposed penalty
Machinery, equipment, and tools.
Martin Marietta - Woodville Lime & Stone · 330015630 CFR 56.14205 · $151.00 proposed penalty
Regular Safety and Health Inspection
GREENWOOD QUARRY · 230014110.0 on-site hours reported
Regular Safety and Health Inspection
Tory East Quarry · 230221320.0 on-site hours reported
Regular Safety and Health Inspection
Barnhart Quarry · 23024698.0 on-site hours reported
Regular Safety and Health Inspection
Lemon Springs Quarry · 310110418.5 on-site hours reported
Inspection.
Jones Mill Quarry · 030158630 CFR 56.4201(a)(2) · $151.00 proposed penalty
Electrical conductors.
HATTON QUARRY · 030161430 CFR 56.12004 · $151.00 proposed penalty
Safety defects; examination, correction and records.
Barnhart Quarry · 230246930 CFR 56.14100(b) · $209.00 proposed penalty
Inspection.
Barnhart Quarry · 230246930 CFR 56.4201(a)(1) · $209.00 proposed penalty
Controls and switches.
Apex Quarry and Plant · 260008130 CFR 56.12002 · $2,503.00 proposed penalty
Insulation and fittings for power wires and cables.
Apex Quarry and Plant · 260008130 CFR 56.12008 · $226.00 proposed penalty
Construction and maintenance of guards.
Apex Quarry and Plant · 260008130 CFR 56.14112(a)(1) · $226.00 proposed penalty
Insulation and fittings for power wires and cables.
Apex Quarry and Plant · 260008130 CFR 56.12008 · $755.00 proposed penalty
Insulation and fittings for power wires and cables.
Apex Quarry and Plant · 260008130 CFR 56.12008 · $226.00 proposed penalty
Posting at mine.
Apex Quarry and Plant · 260008130 CFR 40.4 · $151.00 proposed penalty
Electrical conductors.
Apex Quarry and Plant · 260008130 CFR 56.12004 · $226.00 proposed penalty
Identification of power switches.
Apex Quarry and Plant · 260008130 CFR 56.12018 · $226.00 proposed penalty
Slip or fall of person
Fort Calhoun Underground Mine · 2501300Days restricted activity only
Accident narrative
Employee rolled their left ankle while getting out of a pickup. The injury became reportable after a doctor placed employee on restrictions on 02/26/2025
Handling of materials
Martin Marietta - Woodville Lime & Stone · 3300156Dys awy frm wrk & restrctd act
Accident narrative
Maintenance repairman performing non routine tasks, improperly moved object.
Regular Safety and Health Inspection
Jones Mill Quarry · 030158622.0 on-site hours reported
Regular Safety and Health Inspection
HATTON QUARRY · 030161419.0 on-site hours reported
Regular Safety and Health Inspection
Iron Mountain Quarry · 23002108.8 on-site hours reported
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.