Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Insulation and fittings for power wires and cables.
Olathe Quarry · 140170430 CFR 56.12008
Horns and backup alarms.
Olathe Quarry · 140170430 CFR 56.14132(b)(2)
Regular Safety and Health Inspection
Merced Aggregates · 040284110.0 on-site hours reported
Regular Safety and Health Inspection
Waverly Sand & Gravel · 12020388.0 on-site hours reported
Electrical conductors.
Waverly Sand & Gravel · 120203830 CFR 56.12004 · Significant and substantial (S&S)
Inspection and cover plates.
Fort Dodge Mine · 130003230 CFR 57.12032
Annual refresher training of miners; minimum courses of instruction; hours of instruction.
Martin Marietta Merkel Plant · 410384830 CFR 48.28(a)
Notification by operator.
Martin Marietta Merkel Plant · 410384830 CFR 41.11(d)
Horns and backup alarms.
Martin Marietta Merkel Plant · 410384830 CFR 56.14132(a)
New miner training.
Midlothian Quarry · 440376730 CFR 46.5 · Significant and substantial (S&S)
Blocking equipment in a raised position.
Midlothian Quarry · 440376730 CFR 56.14211(c) · Significant and substantial (S&S)
Construction and maintenance of guards.
Granite Canyon Quarry · 480001830 CFR 56.14112(a)(1)
Regular Safety and Health Inspection
Moore Quarry · 130218812.5 on-site hours reported
Regular Safety and Health Inspection
Pedersen Quarry · 13021922.8 on-site hours reported
Regular Safety and Health Inspection
Bowling Green South Quarry · 150002539.5 on-site hours reported
Regular Safety and Health Inspection
Martin Marietta Merkel Plant · 41038489.5 on-site hours reported
Regular Safety and Health Inspection
Granite Canyon Quarry · 480001824.0 on-site hours reported
Records.
Sunol Aggregates · 040185930 CFR 62.190(c)(2)
Construction and maintenance of guards.
Sunol Aggregates · 040185930 CFR 56.14112(a)(1)
Unguarded conveyors with adjacent travelways.
Sunol Aggregates · 040185930 CFR 56.14109
Horns and backup alarms.
LAKESIDE - VIGILANTE AGGREGATES · 040268530 CFR 56.14132(a)
Parking procedures for unattended equipment.
Fort Dodge Mine · 130003230 CFR 57.14207
Testing grounding systems.
Moore Quarry · 130218830 CFR 56.12028
Inspection.
Bowling Green South Quarry · 150002530 CFR 56.4201(a)(2)
First aid materials.
New Melle Mine · 230204330 CFR 57.15001
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.