Martin Marietta Materials, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Inspection and cover plates.
Clifton Plant · 410001330 CFR 56.12032 · $151.00 proposed penalty
Toilet facilities.
Clifton Plant · 410001330 CFR 56.20008(b) · $151.00 proposed penalty
High-pressure hose connections.
Clifton Plant · 410001330 CFR 56.13021
Controls and switches.
Clifton Plant · 410001330 CFR 56.12002
Housekeeping.
Clifton Plant · 410001330 CFR 56.20003(a)
Regular Safety and Health Inspection
Bluff City Mine · 110012238.0 on-site hours reported
Regular Safety and Health Inspection
FAIRFIELD GRAVEL · 330139613.5 on-site hours reported
Verbal Hazard Complaint Inspections
Midlothian Quarry · 44037672.3 on-site hours reported
Parking procedures for unattended equipment.
Clifton Plant · 410001330 CFR 56.14207
Compliance Follow-up Inspection
Lowell Mine & Mill · 08011212.0 on-site hours reported
Regular Safety and Health Inspection
Auburn Quarry · 01000064.0 on-site hours reported
Regular Safety and Health Inspection
CHESTERFIELD QUARRY · 380068221.3 on-site hours reported
Safety defects; examination, correction and records.
CHESTERFIELD QUARRY · 380068230 CFR 56.14100(b) · $151.00 proposed penalty
Safety defects; examination, correction and records.
CHESTERFIELD QUARRY · 380068230 CFR 56.14100(b) · $151.00 proposed penalty
Inspection.
CHESTERFIELD QUARRY · 380068230 CFR 56.4201(a)(2) · $151.00 proposed penalty
Safety defects; examination, correction and records.
CHESTERFIELD QUARRY · 380068230 CFR 56.14100(a) · Significant and substantial (S&S) · $366.00 proposed penalty
Safety defects; examination, correction and records.
CHESTERFIELD QUARRY · 380068230 CFR 56.14100(b) · $151.00 proposed penalty
Safe access.
CHESTERFIELD QUARRY · 380068230 CFR 56.11001 · Significant and substantial (S&S) · $151.00 proposed penalty
Safety defects; examination, correction and records.
CHESTERFIELD QUARRY · 380068230 CFR 56.14100(b) · $151.00 proposed penalty
Safe access.
Clifton Plant · 410001330 CFR 56.11001
Brakes.
Clifton Plant · 410001330 CFR 56.14101(a)(2) · Significant and substantial (S&S)
Housekeeping.
Clifton Plant · 410001330 CFR 56.20003(a) · Significant and substantial (S&S)
Housekeeping.
Clifton Plant · 410001330 CFR 56.20003(a)
Mine Idle Activity
DOUGLAS PLANT · 02000220.3 on-site hours reported
Regular Safety and Health Inspection
Missouri Portable #5 · 23026124.8 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.