Martin Marietta Materials, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Horns and backup alarms.
Carmel Sand & Gravel · 120212430 CFR 56.14132(a) · Significant and substantial (S&S)
Handling of materials
O'Neal Quarry & Mill · 0100003Days away from work only
Accident narrative
While clearing bridged rams on a kiln preheater, hot material blew back through a porthole and burned the employee.
Regular Safety and Health Inspection
Snyder · 340165113.0 on-site hours reported
Construction and maintenance of guards.
Brierfield Quarry · 010000430 CFR 56.14112(b)
Parking procedures for unattended equipment.
Lotawana Quarry · 230188930 CFR 56.14207
Electrical conductors.
Snyder · 340165130 CFR 56.12004
Safety defects; examination, correction and records.
Snyder · 340165130 CFR 56.14100(b)
Regular Safety and Health Inspection
Brierfield Quarry · 010000416.0 on-site hours reported
Regular Safety and Health Inspection
Alden Portable Sand · 13020374.3 on-site hours reported
Regular Safety and Health Inspection
Lotawana Quarry · 23018897.8 on-site hours reported
Regular Safety and Health Inspection
Chattanooga Quarry · 400315913.8 on-site hours reported
Insulation and fittings for power wires and cables.
Alden Portable Sand · 130203730 CFR 56.12008
Safety defects; examination, correction and records.
Lotawana Quarry · 230188930 CFR 56.14100(b)
Construction and maintenance of guards.
Lotawana Quarry · 230188930 CFR 56.14112(b)
Regular Safety and Health Inspection
DSM Portable Sand · 13025043.5 on-site hours reported
Regular Safety and Health Inspection
Olathe Quarry · 140170411.8 on-site hours reported
Testing grounding systems.
DSM Portable Sand · 130250430 CFR 56.12028
Safety defects; examination, correction and records.
Olathe Quarry · 140170430 CFR 56.14100(a)
Brakes.
Olathe Quarry · 140170430 CFR 56.14101(a)(2)
Parking procedures for unattended equipment.
Olathe Quarry · 140170430 CFR 56.14207
Testing grounding systems.
Olathe Quarry · 140170430 CFR 56.12028 · Significant and substantial (S&S)
Moving machine parts.
Olathe Quarry · 140170430 CFR 56.14107(a)
Inspection.
Olathe Quarry · 140170430 CFR 56.4201(a)(2)
Handrails and toeboards.
Olathe Quarry · 140170430 CFR 56.11002 · Significant and substantial (S&S)
Insulation and fittings for power wires and cables.
Olathe Quarry · 140170430 CFR 56.12008
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.