Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Stamper Underground · 23022322.3 on-site hours reported
Regular Safety and Health Inspection
Plant #83 · 23023384.3 on-site hours reported
Regular Safety and Health Inspection
Fast Pack 2 Portable 2 · 23024038.3 on-site hours reported
Safety defects; examination, correction and records.
Weeping Water Mine · 250099830 CFR 57.14100(b) · Significant and substantial (S&S) · $165.00 proposed penalty
Compliance Follow-up Inspection
Des Moines Portable #1 · 13001500.8 on-site hours reported
Mine Idle Activity
Reasnor Sand · 13008141.0 on-site hours reported
Regular Safety and Health Inspection
Plant #81 · 23022968.3 on-site hours reported
Regular Safety and Health Inspection
KANNAPOLIS QUARRY · 31000705.5 on-site hours reported
Electrical conductors.
Plant #81 · 230229630 CFR 56.12004 · $151.00 proposed penalty
Safety defects; examination, correction and records.
Plant #81 · 230229630 CFR 56.14100(b) · Significant and substantial (S&S) · $755.00 proposed penalty
Barricades and warning signs.
Plant #81 · 230229630 CFR 56.20011 · $151.00 proposed penalty
Housekeeping.
KANNAPOLIS QUARRY · 310007030 CFR 56.20003(a) · $151.00 proposed penalty
Storage facilities.
Mill Creek Limestone Quarry · 340185930 CFR 56.4430(a)(2)
Safety defects; examination, correction and records.
Mill Creek Limestone Quarry · 340185930 CFR 56.14100(c) · Significant and substantial (S&S) · $398.00 proposed penalty
Horns and backup alarms.
Mill Creek Limestone Quarry · 340185930 CFR 56.14132(a) · $151.00 proposed penalty
Roll-over protective structures (ROPS) and seat belts.
Mill Creek Limestone Quarry · 340185930 CFR 56.14130(g) · Significant and substantial (S&S) · $165.00 proposed penalty
Regular Safety and Health Inspection
Kentucky Avenue Mine · 120176238.0 on-site hours reported
Housekeeping.
Cumming Mine Site · 090046030 CFR 56.20003(a) · $151.00 proposed penalty
Moving machine parts.
Cumming Mine Site · 090046030 CFR 56.14107(a) · $151.00 proposed penalty
Housekeeping.
Cumming Mine Site · 090046030 CFR 56.20003(a) · $151.00 proposed penalty
Correction of hazardous conditions.
Kentucky Avenue Mine · 120176230 CFR 57.3200 · Significant and substantial (S&S) · $504.00 proposed penalty
Examination of working places.
Kentucky Avenue Mine · 120176230 CFR 57.18002(a) · Significant and substantial (S&S) · $504.00 proposed penalty
Roadway maintenance.
Kentucky Avenue Mine · 120176230 CFR 57.9313 · Significant and substantial (S&S) · $336.00 proposed penalty
Construction and maintenance of guards.
AMES MINE · 130001430 CFR 57.14112(a)(1) · $151.00 proposed penalty
Protection of persons at switchgear.
Fort Dodge Mine · 130003230 CFR 57.12020 · $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.