Martin Marietta Materials, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Clifton Plant · 410001361.0 on-site hours reported
Warning signs.
Champ Quarry · 230022030 CFR 56.4101
General requirements.
Missouri Portable #5 · 230261230 CFR 56.4200(b)(2)
Construction and maintenance of guards.
Missouri Portable #5 · 230261230 CFR 56.14112(a)(1)
Construction and maintenance of guards.
Clifton Plant · 410001330 CFR 56.14112(b) · Significant and substantial (S&S)
Securing movable parts.
Clifton Plant · 410001330 CFR 56.14206(b) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Clifton Plant · 410001330 CFR 56.14100(b) · $151.00 proposed penalty
Safety defects; examination, correction and records.
Clifton Plant · 410001330 CFR 56.14100(a) · $151.00 proposed penalty
Inspection.
Clifton Plant · 410001330 CFR 56.4201(a)(2) · $151.00 proposed penalty
Inspection and cover plates.
New Braunfels Plant · 410007830 CFR 56.12032
Splices and repairs of power cables.
New Braunfels Plant · 410007830 CFR 56.12013(b)
Safety defects; examination, correction and records.
New Braunfels Plant · 410007830 CFR 56.14100(b)
Insulation and fittings for power wires and cables.
New Braunfels Plant · 410007830 CFR 56.12008
Exposure monitoring.
New Braunfels Plant · 410007830 CFR 56.5002
Regular Safety and Health Inspection
Champ Quarry · 230022013.0 on-site hours reported
Regular Safety and Health Inspection
North Valley Sand · 250127111.0 on-site hours reported
Housekeeping.
New Braunfels Plant · 410007830 CFR 56.20003(b)
Housekeeping.
New Braunfels Plant · 410007830 CFR 56.20003(b)
Testing grounding systems.
New Braunfels Plant · 410007830 CFR 56.12028
Safety defects; examination, correction and records.
New Braunfels Plant · 410007830 CFR 56.14100(b)
Protection for openings around travelways.
New Braunfels Plant · 410007830 CFR 56.11012
Flying or falling materials.
New Braunfels Plant · 410007830 CFR 56.14110
Housekeeping.
New Braunfels Plant · 410007830 CFR 56.20003(a)
Inspection.
New Braunfels Plant · 410007830 CFR 56.4201(a)(1)
Safety defects; examination, correction and records.
New Braunfels Plant · 410007830 CFR 56.14100
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.