Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Mine Idle Activity
Portable Crusher HTX · 41058991.0 on-site hours reported
Housekeeping.
BALLGROUND MINE SITE · 090095530 CFR 56.20003(b)
Main facilities.
Randolph Deep Mine · 230230830 CFR 57.6160(a)(4)
Protection of gas cylinder valves.
Martin Marietta - Gabbs Mine · 260000230 CFR 56.16006
Testing grounding systems.
Martin Marietta - Gabbs Mine · 260000230 CFR 56.12028
Safety defects; examination, correction and records.
Martin Marietta - Gabbs Mine · 260000230 CFR 56.14100(c)
Gauges and regulators.
Martin Marietta - Gabbs Mine · 260000230 CFR 56.4602
Securing gas cylinders.
Martin Marietta - Gabbs Mine · 260000230 CFR 56.16005
Training of miners assigned to a task in which they have had no previous experience; minimum courses of instruction.
Martin Marietta - Gabbs Mine · 260000230 CFR 48.27(a)(1)
Roll-over protective structures (ROPS) and seat belts.
Martin Marietta - Gabbs Mine · 260000230 CFR 56.14130(c)
Requirement for container labels.
Martin Marietta - Gabbs Mine · 260000230 CFR 47.41(a)
Construction and maintenance of guards.
Martin Marietta - Gabbs Mine · 260000230 CFR 56.14112(b)
Horns and backup alarms.
Martin Marietta - Gabbs Mine · 260000230 CFR 56.14132(a)
Horns and backup alarms for surface equipment.
Crab Orchard Mine and Mill · 400008730 CFR 57.14132(b)(1)(i)
Horns and backup alarms for surface equipment.
Crab Orchard Mine and Mill · 400008730 CFR 57.14132(b)(1)
Testing grounding systems.
Crab Orchard Mine and Mill · 400008730 CFR 57.12028
Air receiver tanks.
Crab Orchard Mine and Mill · 400008730 CFR 57.13011
Horns and backup alarms.
Portable Crusher #2 · 410420430 CFR 56.14132(a)
Regular Safety and Health Inspection
BALLGROUND MINE SITE · 090095518.3 on-site hours reported
Regular Safety and Health Inspection
Petersburg Sand · 151689514.0 on-site hours reported
Regular Safety and Health Inspection
Randolph Deep Mine · 230230827.5 on-site hours reported
Regular Safety and Health Inspection
Martin Marietta - Gabbs Mine · 260000229.5 on-site hours reported
Regular Safety and Health Inspection
Crab Orchard Mine and Mill · 400008763.3 on-site hours reported
Regular Safety and Health Inspection
Portable Crusher #2 · 41042044.3 on-site hours reported
Inspection and cover plates.
Fort Calhoun Underground Mine · 250130030 CFR 56.12032
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.