Martin Marietta Materials Inc safety activity
MSHA violations, accident reports and inspections across the current mine portfolio.
Safety activity
Regular Safety and Health Inspection
Jamestown · 310005111.5 on-site hours reported
Correction of hazardous conditions.
Randolph Deep Mine · 230230830 CFR 57.3200 · $151.00 proposed penalty
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
Merced Aggregates · 04028415.5 on-site hours reported
Regular Safety and Health Inspection
Randolph Deep Mine · 230230824.5 on-site hours reported
Regular Safety and Health Inspection
Palmetto Sand Mine · 38007107.5 on-site hours reported
Regular Safety and Health Inspection
Loamy Sand and Gravel · 380072122.5 on-site hours reported
Regular Safety and Health Inspection
Forks of the River Quarry · 400161021.5 on-site hours reported
Regular Safety and Health Inspection
San Pedro Quarry · 41013378.0 on-site hours reported
Electrical conductors.
Alabaster Mill · 010317530 CFR 56.12004 · $151.00 proposed penalty
Safe access.
Merced Aggregates · 040284130 CFR 56.11001 · $151.00 proposed penalty
Vehicles.
Randolph Deep Mine · 230230830 CFR 57.6202(b)(2) · $151.00 proposed penalty
Inspection.
Randolph Deep Mine · 230230830 CFR 57.4201(a)(1) · $151.00 proposed penalty
Vehicles.
Randolph Deep Mine · 230230830 CFR 57.6202(a)(4) · $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
Horns and backup alarms.
WATAUGA QUARRY · 400012430 CFR 56.14132(a) · $151.00 proposed penalty
Safe access.
WATAUGA QUARRY · 400012430 CFR 56.11001 · $151.00 proposed penalty
Correction of hazardous conditions.
Clifton Plant · 410001330 CFR 56.3200 · $313.00 proposed penalty
Identification of power switches.
San Pedro Quarry · 410133730 CFR 56.12018 · $151.00 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
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.