Martin Marietta Materials, Inc. safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Housekeeping.
Clifton Plant · 410001330 CFR 56.20003(b) · $151.00 proposed penalty
Identification of power switches.
Clifton Plant · 410001330 CFR 56.12018 · $151.00 proposed penalty
Electrical conductors.
Clifton Plant · 410001330 CFR 56.12004 · $151.00 proposed penalty
Electrical conductors.
Clifton Plant · 410001330 CFR 56.12004 · $151.00 proposed penalty
Regular Safety and Health Inspection
Louisburg Quarry · 140082311.0 on-site hours reported
Regular Safety and Health Inspection
Parsons Sand and Gravel · 050321521.5 on-site hours reported
Distribution boxes.
Clifton Plant · 410001330 CFR 56.12006 · $151.00 proposed penalty
General requirements.
Clifton Plant · 410001330 CFR 56.4200(b)(2) · $151.00 proposed penalty
Fall of roof or back
BURNING SPRINGS MINE · 4608862Days restricted activity only
Accident narrative
A rock fell from the back hitting a miner in the left shoulder, resulting in a fractured left clavicle.
Regular Safety and Health Inspection
Jamestown · 310005111.5 on-site hours reported
Electrical conductors.
Clifton Plant · 410001330 CFR 56.12004 · $151.00 proposed penalty
Berms or guardrails.
Clifton Plant · 410001330 CFR 56.9300(a) · Significant and substantial (S&S) · $398.00 proposed penalty
Regular Safety and Health Inspection
Loamy Sand and Gravel · 380072122.5 on-site hours reported
Electrical conductors.
Alabaster Mill · 010317530 CFR 56.12004 · $151.00 proposed penalty
Safe access.
Weeping Water Mine · 250099830 CFR 57.11001 · $151.00 proposed penalty
Spillage and leakage.
Weeping Water Mine · 250099830 CFR 57.4102 · $151.00 proposed penalty
Horns and backup alarms.
Loamy Sand and Gravel · 380072130 CFR 56.14132(b)(2) · $226.00 proposed penalty
Inspection and cover plates.
Loamy Sand and Gravel · 380072130 CFR 56.12032 · $151.00 proposed penalty
Correction of hazardous conditions.
Clifton Plant · 410001330 CFR 56.3200 · $313.00 proposed penalty
Handling of materials
Walstrum Quarry · 0503935No dys awy frm wrk,no rstr act
Accident narrative
EE's left middle finger was smashed & lacerated between two parts of Komatsu 605 haul truck during removal of dampener.
Entrapment
Thomasville Quarry · 3101475Accident only
Accident narrative
Customer truck driver entered quarry entrance with bed raised striking overhead communication lines. This resulted in three poles breaking and the overhead power lines falling to the ground behind the truck. Driver was required to remain in truck until power company deenergized lines
Regular Safety and Health Inspection
Alabaster Mill · 01031758.5 on-site hours reported
Regular Safety and Health Inspection
Fort Dodge Mine · 130003235.8 on-site hours reported
Regular Safety and Health Inspection
POMONA · 310005216.3 on-site hours reported
Spot Inspection
Thomasville Quarry · 31014751.8 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.