Martin Marietta Materials, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Cedarville Limestone · 330407216.8 on-site hours reported
Spot Inspection
E-Town S&G - 460 · 33042795.0 on-site hours reported
Escape routes.
AMES MINE · 130001430 CFR 57.11051(a) · $245.00 proposed penalty
Safety defects; examination, correction and records.
Petersburg Sand · 151689530 CFR 56.14100(b) · $151.00 proposed penalty
Correction of hazardous conditions.
Plant #65 · 230192230 CFR 56.3200 · $193.00 proposed penalty
Inspection.
Plant #65 · 230192230 CFR 56.4201(a)(2) · $151.00 proposed penalty
Testing grounding systems.
Fort Calhoun Underground Mine · 250130030 CFR 57.12028 · $165.00 proposed penalty
Identification of power switches.
Amargosa Quarry and Plant · 260104330 CFR 56.12018 · $432.00 proposed penalty
Locking transformer enclosures.
Amargosa Quarry and Plant · 260104330 CFR 56.12068 · $1,431.00 proposed penalty
Combustible waste.
Amargosa Quarry and Plant · 260104330 CFR 56.4104(b) · $432.00 proposed penalty
Warning signs.
Amargosa Quarry and Plant · 260104330 CFR 56.4101 · $1,431.00 proposed penalty
Unguarded conveyors with adjacent travelways.
Denver Quarry · 310197130 CFR 56.14109(a) · $151.00 proposed penalty
Hand-held power tools.
Cedarville Limestone · 330407230 CFR 56.14116(a) · Significant and substantial (S&S) · $151.00 proposed penalty
Correction of dangerous conditions.
Crab Orchard Mine and Mill · 400008730 CFR 57.12030 · $209.00 proposed penalty
Insulation and fittings for power wires and cables.
Crab Orchard Mine and Mill · 400008730 CFR 57.12008 · $209.00 proposed penalty
Disorders (repeated trauma)
Marshall Quarry · 2300099Occupatnal illness not deg 1-6
Accident narrative
Noise-induced hearing loss in accordance with Part 50
Regular Safety and Health Inspection
AMES MINE · 130001469.0 on-site hours reported
Spot Inspection
Petersburg Sand · 15168957.5 on-site hours reported
Regular Safety and Health Inspection
Plant #65 · 23019229.0 on-site hours reported
Regular Safety and Health Inspection
Denver Quarry · 31019717.0 on-site hours reported
Regular Safety and Health Inspection
Crab Orchard Mine and Mill · 400008745.3 on-site hours reported
Regular Safety and Health Inspection
Martin Marietta-Lawyers Rd. Quarry · 440001520.0 on-site hours reported
Regular Safety and Health Inspection
RED HILL QUARRY · 440007213.3 on-site hours reported
Horns and backup alarms for surface equipment.
Crab Orchard Mine and Mill · 400008730 CFR 57.14132 · $151.00 proposed penalty
Warning signs.
RED HILL QUARRY · 440007230 CFR 56.4101 · $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.