Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Harlan Quarry · 150007115.0 on-site hours reported
Regular Safety and Health Inspection
Raleigh-Durham Quarry · 310194116.3 on-site hours reported
Securing gas cylinders.
Santa Margarita Aggregates · 040161630 CFR 56.16005 · $151.00 proposed penalty
Electrical conductors.
DSM Portable Sand · 130250430 CFR 56.12004 · $151.00 proposed penalty
Procedures during repairs or maintenance.
DSM Portable Sand · 130250430 CFR 56.14105 · $177.00 proposed penalty
Inspection.
Plant #81 · 230229630 CFR 56.4201(a)(2) · $151.00 proposed penalty
Moving machine parts.
Plant #81 · 230229630 CFR 56.14107(a) · $151.00 proposed penalty
Moving machine parts.
Plant #81 · 230229630 CFR 56.14107(a) · $151.00 proposed penalty
Horns and backup alarms.
Plant #81 · 230229630 CFR 56.14132(a) · $165.00 proposed penalty
Extinguisher recharging or replacement.
Plant #81 · 230229630 CFR 56.4203 · $151.00 proposed penalty
Electrical conductors.
Raleigh-Durham Quarry · 310194130 CFR 56.12004 · $209.00 proposed penalty
Handtools (nonpowered)
Iron Mountain Quarry · 2300210Days restricted activity only
Accident narrative
The employee was performing maintenance using a wrench. Wrench slipped off a bolt, causing the employee to lose balance and fall backwards into a shelf then onto the ground. The employee tried to brace themselves with their left arm injuring it.
Regular Safety and Health Inspection
Clarkdale Plant #24 · 02025249.5 on-site hours reported
Regular Safety and Health Inspection
Waverly Sand & Gravel · 120203816.3 on-site hours reported
Regular Safety and Health Inspection
Des Moines Portable #1 · 130015023.8 on-site hours reported
Verbal Hazard Complaint Inspections
Lotawana Quarry · 23018890.0 on-site hours reported
Regular Safety and Health Inspection
West Center Sand · 25012316.0 on-site hours reported
Regular Safety and Health Inspection
New Miami Plant · 33043838.0 on-site hours reported
Spot Inspection
Crab Orchard Mine and Mill · 40000875.0 on-site hours reported
Electrical conductors.
Des Moines Portable #1 · 130015030 CFR 56.12004 · $151.00 proposed penalty
Electrical conductors.
Des Moines Portable #1 · 130015030 CFR 56.12004 · $209.00 proposed penalty
Safety defects; examination, correction and records.
Lotawana Quarry · 230188930 CFR 56.14100(b) · $151.00 proposed penalty
Electrical conductors.
Lotawana Quarry · 230188930 CFR 56.12004 · $177.00 proposed penalty
Splices and repairs of power cables.
Lotawana Quarry · 230188930 CFR 56.12013(b) · $151.00 proposed penalty
Moving machine parts.
Lotawana Quarry · 230188930 CFR 56.14107(a) · $267.00 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.